MEAN WELL NSP-1000 series: Programmable PFC power supply - NSP-1000-27MOD

Description

NSP-1000-27MOD — Programmable PFC power supply

MEAN WELL NSP-1000-27MOD is an enclosed AC/DC power supply with active PFC, 27 V DC output, 37 A rated current and 999 W rated output. It accepts 85–305 V AC or 120–431 V DC, subject to derating. This is the by-request MODBus version with programmable output and active current sharing.

Download MEAN WELL NSP-1000 Datasheet (PDF)
Download MEAN WELL NSP-1000 User Manual (PDF)
Download MEAN WELL EMI Testing Guidance (PDF)

NSP-1000 reference: PDF page(s) 52–64.

Electrical specifications

Model and output NSP-1000-27MOD; single output 27 V DC, current range 0–37 A; rated power 999 W.
Input voltage and frequency 85–305 V AC or 120–431 V DC; 47–63 Hz. 277 V AC operation is supported within the stated limits.
Efficiency 93% typical.
Series capability reference The NSP-1000 series offers efficiency up to 94% and peak power up to 200% on the documented peak-capable models. Use the selected model’s current, power, voltage and thermal limits below; these series maxima are not unconditional individual ratings.
Voltage adjustment 24.3–32.4 V.
Ripple and noise 200 mV p-p maximum; measured with 20 MHz bandwidth using a 12-inch twisted pair terminated by 0.1 µF and 47 µF capacitors in parallel.
Voltage tolerance ±1.0%; includes setup tolerance, line regulation and load regulation.
Line regulation ±0.5%.
Load regulation ±0.5%.
Power factor 0.98 / 0.95 / 0.92 typical at 115 / 230 / 277 V AC respectively, full load.
AC input current 12 / 6 / 5 A typical at 115 / 230 / 277 V AC respectively.
Inrush current 25 / 40 / 50 A typical, cold start at 115 / 230 / 277 V AC respectively.
Setup and rise time 2500 / 80 ms at 115 V AC; 1500 / 80 ms at 230 and 277 V AC. Setup is measured at first cold start; repeated ON/OFF operation may increase setup time.
Hold-up time 12 ms at 70% load and 8 ms at full load, typical.
Switching frequency Block diagram: PFC 65 kHz; PWM 85 kHz.
General measurement conditions Unless specially stated, parameters are measured at 230 V AC input, rated load and 25°C ambient.

Peak operation and protection

Peak output 64 A; 2000 W, each stated for 5 seconds in the model table. Observe the peak-power function, input and temperature limits together.
Peak-power duty and average load With peak power Ppk, non-peak power Pnpk, pulse duration t and period T: Pav = [Ppk × t + Pnpk × (T − t)] / T ≤ rated output power; t ≤ 5 seconds; duty = t/T × 100% ≤ 35%. The plotted duty limits below may be lower.
Peak-power input dependence The 200 V AC graph allows 35% duty through 150% peak power, falling to 10% at 175% and 5% at 200%. The 100 V AC graph falls from 35% at 110% peak power to 10% at 133% and 5% at 150%. Do not use a higher peak level outside its plotted input and temperature conditions.
Peak power at upper voltage adjustment When output voltage is adjusted to its upper limit, peak power is limited to 150% of rated power.
Peak table reference The 27 V table separately prints 64 A peak current and 2000 W peak power. Retain both catalogue limits and confirm the permitted operating point with MEAN WELL; do not calculate a replacement current from the power entry.
Short-circuit protection Peak Load Mode: constant-current limiting for more than 5 seconds, then output shutdown; cycle power to recover. Current Limiting Mode: constant-current limiting with automatic recovery after the fault is removed.
Overload protection Peak Load Mode: output power above 105% of rated power for more than 5 seconds causes shutdown; above 200%, constant-current limiting for more than 5 seconds then shutdown. Cycle power to recover. Current Limiting Mode limits current and recovers automatically after the fault is removed.
Overvoltage protection 33–42 V; output shutdown and latch-off; cycle power to recover.
Overtemperature protection Output shutdown; automatic recovery after temperature falls.

Control and interface functions

Communication configuration MODBus model. Blank suffix is the standard CANBus configuration; MOD is the by-request MODBus configuration. Communication supports control, setting and monitoring. OR/MODOR are separate by-request OR-ing FET options, not included merely by selecting this model.
Output-voltage programming DIP-SW1 position 3 OFF selects the SVR potentiometer; ON selects external PV. Apply external voltage between CN1 pin 5 PV and pin 11 GND. The graph is labelled Non-Linear: about 1% output at 1 V, rising to 120% at 4.7 V and flat to 4.8 V. The overall function is described as 0–120%; observe this model-specific ceiling. Under some PV conditions, ripple may exceed the tabulated ripple rating.
Output-current programming DIP-SW1 position 2 OFF uses the default OLP value; ON enables PC. Apply external voltage between CN1 pin 6 PC and pin 11 GND for 0–100% rated-current programming. The Non-Linear graph marks about 1% at 1 V and 100% at 4.7 V, flat to 4.8 V; do not assume a linear transfer function.
Remote ON/OFF Short CN2 pin 1 R.C. to pin 2 +5V-AUX for ON; open for OFF. ON input: 4.5–5.5 V DC; OFF: −0.5 to +0.5 V DC. Maximum input is 5.5 V DC. Use an external switch, optocoupler or relay as illustrated.
Remote and local sensing For remote sensing, CN1 pin 2 +RS goes to load positive and pin 4 −RS to load negative.
Parallel operation The series describes up to 4000 W (3+1). Below 5% total rated-current load, sharing can be unbalanced, units can enter standby and their LEDs may be off.
Parallel bus and termination Connect DA, DB and GND mutually between units; twist long signal wiring. CN1 pins 13/14 are DA, 15/16 DB and 11/12 GND. DIP-SW1 position 4 switches the 120 Ω sharing-bus termination. For two to four units, terminate the first and last unit (ON), with intermediate units OFF. The single-unit table and non-parallel diagram differ; confirm the standalone setting for the supplied revision.
CN1 control connector pin map 1 +Vo(signal); 2 +RS; 3 −Vo(signal); 4 −RS; 5 PV; 6 PC; 7/8/9/10 A0/A1/A2/A3 address inputs; 11/12 GND; 13/14 DA; 15/16 DB. PV and PC are non-isolated signals referenced to GND. Address selection is distinct from the four-unit parallel limit.
CN2 control connector pin map 1 R.C.; 2 +5V-AUX; 3 DC-OK; 4 and 6 GND-AUX; 5 +12V-AUX; 7 D+; 8 D−; 9 RTA; 10 RTB. RTA/RTB provide the 120 Ω communication termination. These control signals are isolated and referenced to GND-AUX.
Auxiliary outputs 5 V / 0.2 A (4.25–5.75 V), tolerance ±15%, ripple 150 mV p-p; 12 V / 0.8 A (10.2–13.8 V), tolerance ±15%, ripple 450 mV p-p. Both have built-in OR-ing diodes and remain active when R.C. disables the main output. GND-AUX is pins 4/6 per the pin-function row; the auxiliary prose incorrectly refers to pin 2, which is +5V-AUX. Verify wiring against the supplied connector definition.
DC OK signal Maximum 5 V DC / 10 mA resistive load; output-only, maximum sourcing current 10 mA. High 3.5–5.5 V when Vout ≤77% ±5%; low −0.5 to +0.5 V when Vout ≥80% ±5%, referenced to GND-AUX.
LED status indications Steady green: normal operation. Steady red: remote OFF. Orange one blink/pause: internal overtemperature warning. Red blink/pause counts: 1 overload/short circuit; 2 overvoltage; 3 overtemperature; 4 fan failure; 5 AC undervoltage; 6 other hardware faults. In PC mode, OLP/SCP constant-current operation retains a steady green indicator.

Environment and thermal limits

Operating environment −40 to +85°C, with both input-voltage and temperature derating; 20–90% RH, non-condensing. The curve limits determine usable output, not the temperature range alone.
Ambient-temperature derating Horizontal mounting. At 85–135 V AC, continuous output is 100% through +50°C and 30% at +85°C; the low-line graph starts at −30°C. At 180–305 V AC, continuous output is 60% at −40°C, 100% from −30°C through +60°C, and 30% at +85°C. Follow the applicable curve between marked points.
Peak-temperature envelope For peak-capable outputs, the 85–135 V AC graph shows 150% from 0 to +50°C, 120% at +60°C and 45% at +85°C. The 180–305 V AC graph shows 200% from 0 to +60°C and 60% at +85°C. These are peak envelopes only; duty, duration and average-power limits still apply.
Input-voltage derating The 60 Hz input graph permits 80% continuous load at 85 V AC, rising to 100% at 100 V AC and remaining at 100% through 305 V AC. Apply temperature derating simultaneously.
Storage and vibration Storage: −40 to +85°C and 10–95% RH, non-condensing. Vibration: 10–500 Hz, 2 G, 10 minutes per cycle, 60 minutes each along X, Y and Z.
Temperature coefficient ±0.03%/°C from 0 to +60°C.
Altitude derating Above 2000 m, reduce allowable ambient temperature by 5°C per additional 1000 m for this fan-cooled model. The safety-category altitude limits below also apply.
Fan control and noise Built-in intelligent speed control based on internal temperature. ISO-7779 test conditions: 30 dB at 10% load and Ta =25°C; 45 dB at 70% load and Ta =25°C. The general low-noise feature is not a guarantee of less than 24 dB.

Safety and EMC

Safety standards CB: IEC 62368-1, IEC 60335-1, IEC 61558-1/-2-16, IEC 61010-1/-2-201, IEC 60601-1 and IEC 62477-1. DEKRA: corresponding BS EN/EN standards, including EN 60601-1 version 3.2. UL: UL 62368-1, ANSI/AAMI ES60601-1 version 3.2 and UL 61010-1/-2-201. CCC GB 4943.1, BSMI CNS 15598-1, EAC TP TC 004 and SEMI F47 are listed. Integration into final equipment remains subject to its applicable requirements.
By-request certifications KC 62368-1 and BIS IS 13252 (Part 1) certification is by request with no stock; confirm the actual ordered version. A BIS logo may be absent on some factories or models; contact MEAN WELL for details.
Medical insulation and leakage Primary–secondary: 2 × MOPP; primary–earth: 1 × MOPP; secondary–earth: 1 × MOPP. MOPP applies only at 100–240 V AC input. The series is intended for BF-related medical equipment applications, subject to final-system compliance. Earth leakage is <350 µA rms and touch current <100 µA rms at 277 V AC.
Overvoltage category and altitude IEC/EN 61558-1/-2-16: OVC III up to 2000 m. IEC/EN/UL 62368-1, IEC/EN 60335-1, IEC/EN/UL 61010-1/-2-201 and IEC/EN 62477-1: OVC II up to 5000 m. IEC/EN/ANSI/AAMI ES60601-1: OVC II up to 4000 m. Do not combine the OVC III rating with the 5000 m limit.
SELV scope for this voltage IEC/EN 61558-2-16: SELV; IEC/EN 60335-1: SELV; IEC/EN/UL 62368-1: SELV/ES1. Observe the listed standard-specific voltage ranges.
Dielectric strength Input–output 4 kV AC; input–FG 2 kV AC; output–FG 1.5 kV AC.
Insulation resistance 100 MΩ at 500 V DC, 25°C and 70% RH for input–output, input–FG and output–FG.
EMC emissions BS EN/EN 55032 (CISPR 32), CNS 15936, GB/T 9254.1, KS C 9832: Class B; BS EN/EN 55011 (CISPR 11): Class B. BS EN/EN 55014-1 (CISPR 14-1) is also listed, without a separate class in that row.
Harmonic current and flicker EN/IEC 61000-3-2: Class A. Voltage flicker: EN/IEC 61000-3-3.
Immunity framework BS EN/EN 55035 (CISPR 35), EN/IEC 61000-6-2, EN/IEC 60601-1-2, EN 55014-2 (CISPR 14-2), KS C 9835 and SEMI F47 tested at 200 V AC.
Immunity levels IEC 61000-4-2 ESD: Level 4, 15 kV air / 8 kV contact. IEC 61000-4-3: Level 3, 10 V/m at 80 MHz–2.7 GHz; Table 9, 9–28 V/m at 385 MHz–5.78 GHz. IEC 61000-4-4 EFT/burst: Level 3, 2 kV. IEC 61000-4-5 surge: Level 4, 2 kV line–line / 4 kV line–earth. IEC 61000-4-6 conducted: Level 3, 10 V. IEC 61000-4-8 magnetic field: Level 4, 30 A/m.
Voltage dips and interruptions IEC 61000-4-11: >95% dip for 0.5 period, 30% dip for 25 periods, and >95% interruption for 250 periods.
Component EMC test arrangement The EMC metal test plate is not a supplied accessory.

Mechanical details and accessories

Dimensions 230 × 127 × 41 mm (L × W × H); drawing tolerance ±1 mm.
Chassis mounting Eight M4 side positions, 5 mm maximum penetration; five M4 bottom positions, 3 mm maximum penetration. Mounting torque: 8–10 kgf·cm for both groups. Side spacing 170 mm with 40 mm end offset; vertical references 18/12.5 mm and local 2.5/10.5/6.9/13.3 mm. Bottom references: 159.7 ×90 mm outer spacing, 39.3 mm left and 18.5 mm lower offsets; centre position 83 mm horizontally and 45 mm vertically. Bracket installation span is 170 ×147 mm; rear fan projection is 3 mm.
Power terminals Input 1 AC/L or DC +Vin, 2 AC/N or DC −Vin, 3 FG: M3.5, 8–10 kgf·cm. Output 4 −Vo, 5 +Vo: M5, 10–12 kgf·cm. Top-view input-terminal references 12.9/10/10 mm; output references 27.2/19.5 mm.
Control connector hardware CN1 HRS DF11-16DP-2DS or equivalent, with JS-2008R-08X2 mating housing and JS-2007-08X2 terminal. CN2 HRS DF11-10DP-2DS or equivalent, with JS-2008R-05X2 housing and JS-2007-05X2 terminal.
Standard control harnesses The accessory list specifies one each of four standard assemblies: CN1 and CN2 loop/jumper assemblies, UL1061 28 AWG with a 15 mm reference; and CN1 and CN2 full mating-wire assemblies, UL1007 28 AWG, 50 ±5 mm. The jumper drawings identify CHYAO SHIUN JS-2007-08X2 and JS-2007-05X2 or equivalent.
Optional accessories Terminal cover(s) PEE4TBC-03: by request, ordered separately, one of each applicable cover per unit. PGG2MHS012 mounting brackets: four per unit, by request and ordered separately; the installation drawing uses four M4 screws.
Unit packing reference 1400 g, catalogue packing reference per unit; not a measured net-weight claim.
Outer packing 9 units / 12.6 kg / 0.85 CUFT.
Reliability The 2026-05-06 model datasheet specifies 910.8k hours minimum, Telcordia SR-332 (Bellcore); 87.5k hours minimum, MIL-HDBK-217F at 25°C. The June 2026 user manual instead lists 684.7k and 69.2k hours minimum for the same respective methods. Confirm the applicable document revision for the supplied unit.
Construction and warranty Conformal coating.

Application information

Typical uses Industrial automation and control systems, security, mechanical and electrical equipment, electronic instruments, networking, telecom, PoE power sourcing, home automation and medical equipment integration. The series also lists supercapacitor applications, subject to the appropriate control and load design.

Digital measurement and setting reference

Digital readback specifications READ_VIN: 85–305 V, tolerance ±4.60 V. READ_VOUT: 0–35 V, tolerance ±0.27 V. READ_IOUT: 0–80 A, tolerance ±0.4 A. READ_TEMPERATURE_1: −49 to +125°C, tolerance ±5°C. READ_IOUT displays zero below the listed minimum readable current of 0.4 A ±0.4 A. These are measurement characteristics, not extended operating ratings.
Digital setting tolerances and defaults VOUT_SET tolerance ±0.27 V, default 27 V; IOUT_SET tolerance ±0.4 A, default 40.7 A. OPERATION defaults to ON. The command ranges in Digital setting limits do not extend continuous operating ratings.

Installation and operating guidance

Installation and airflow Disconnect AC before wiring or maintenance. Connect FG to protective earth, secure the chassis, observe polarity and prevent shorts. Keep at least 15 cm clear around air openings and away from adjacent heat sources; avoid blocked airflow, excessive dust, moisture, direct sunlight and high-temperature locations.
Power wiring and mounting guidance The manual recommends 14 AWG AC wiring and output wires shorter than 1 m where practical. Size DC conductors for actual continuous and permitted peak current and installation rules. Input M3.5 terminals use 8–10 kgf·cm; output M5 terminals use 10–12 kgf·cm. M4 mounting screws use 8–10 kgf·cm, with maximum insertion of 5 mm at the sides and 3 mm at the bottom.
Peak-load operating conditions Peak-load mode requires SW1 position 1 ON and position 2 OFF. Peak duration must not exceed 5 s, duty must not exceed 35% or the applicable plotted limit, and average power must not exceed rated power. The maximum is twice rated power at input ≥200 VAC and 1.5 times rated power below 200 VAC, subject to input/temperature derating; at 85 VAC the manual applies an additional 80% rating factor. Allow the recommended 10 s OFF interval before restarting.
Control mode and priority SW1 positions 1/2 select peak mode (ON/OFF), continuous 110% current limiting (OFF/OFF), programmed current limiting with 5 s shutdown (ON/ON), or continuous programmed current limiting (OFF/ON). Peak output is unavailable in the current-limiting modes or when digital current control is enabled. Voltage priority is digital control > PV > SVR; current priority is digital control > PC. Keep voltage, current and power within the selected model’s allowed operating envelope.
Parallel installation and SW1 position 4 confirmation Use no more than four units, equalize output voltages to a difference below 0.2 V and use short, large conductors. Total current must not exceed rated current × number of units × 0.9; keep total load above 5% for current sharing. For 2–4 units, set parallel SW1 position 4 ON at the first and last units and OFF at intermediate units. The documents disagree on standalone SW1 position 4; confirm the supplied revision’s single-unit setting before energizing. Consult the manufacturer for parallel output below 1.5 V.
Remote control, sensing and auxiliary reference For CN2 remote control, short RC pin 1 to +5V-AUX pin 2 for ON and leave open for OFF. GND-AUX is CN2 pins 4/6, not pin 2. The auxiliary outputs remain available with remote output OFF. Use twisted remote-sense wires and compensate no more than 0.5 V; for local sensing connect CN1 +RS pin 2 to +Vo-Signal pin 1 and −RS pin 4 to −Vo-Signal pin 3. Signal pins are not load terminals.
Communication setup and control enable MODBus RTU: 115200 bps, 8 data bits, no parity, 1 stop bit and no flow control. Slave addresses are 0x80 plus the hardware ID; 0 is broadcast. Use MOD_CTRL in SYSTEM_CONFIG 0x00C4 to enable control. Factory-default communication permits reading while control remains inactive. Set the intended values and enable the protocol’s control bit before relying on digital control. Sixteen hardware addresses do not mean sixteen units may be paralleled.
Communication termination and saved settings Use the CN2 RTA/RTB pins 9/10 hardware definition for enabling the internal 120 Ω communication terminator at the bus ends; verify the supplied hardware revision. This is separate from parallel SW1 position 4. EEPROM writes have finite endurance: EEP_OFF 0 enables storage (default), 1 disables it; EEP_CONFIG 0 saves immediately (default), 1 after 1 min without a change, 2 after 10 min, and 3 is reserved.
Digital setting limits The manual lists VOUT_SET 0.27–32.4 V and IOUT_SET 0.37–40.7 A for this voltage model. These are command limits, not a guarantee of continuous operation at every voltage/current combination. IOUT_SET above rated current remains a current-limit setting; respect rated output power, derating and the selected protection mode. Readback ranges and low-current zero-reading thresholds are measurement characteristics, not extended operating ratings.
Indicators and fault handling Steady green indicates normal operation; steady red indicates remote OFF. An orange single-flash notification warns of high ambient temperature without stopping output. Numbered red alarms identify 1 overload/short circuit, 2 overvoltage, 3 overtemperature, 4 fan fault, 5 AC undervoltage and 6 other faults. Remove the cause before recovery. Automatic thermal recovery is the specified behavior; the service procedure separately recommends disconnecting AC, allowing cooling and then restarting. Avoid condensation when recovering from low temperature.
Document revision and warranty scope Use the 2026-05-06 model datasheet for the listed ratings and MTBF; the June 2026 user manual gives different MTBF figures. Resolve hardware-setting differences against the supplied revision. The manual states a five-year warranty under normal usage; unauthorized modification or replacement of internal parts is outside its stated conditions.
Complete-system EMC verification The model datasheet records EMC testing on a 720 × 360 × 1 mm metal plate. This is a test arrangement, not a required installation clearance. Recheck EMC with the power supply installed in the final equipment and connected to a representative load; wiring and assembly affect the result. The linked component EMI guidance does not certify the finished equipment.

MEAN WELL NSP-1000 series: Programmable PFC power supply - NSP-1000-27MOD

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NSP-1000-27MOD — Programmable PFC power supply MEAN WELL NSP-1000-27MOD is an enclosed AC/DC power supply with active PFC, 27 V... Read more

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    Description

    NSP-1000-27MOD — Programmable PFC power supply

    MEAN WELL NSP-1000-27MOD is an enclosed AC/DC power supply with active PFC, 27 V DC output, 37 A rated current and 999 W rated output. It accepts 85–305 V AC or 120–431 V DC, subject to derating. This is the by-request MODBus version with programmable output and active current sharing.

    Download MEAN WELL NSP-1000 Datasheet (PDF)
    Download MEAN WELL NSP-1000 User Manual (PDF)
    Download MEAN WELL EMI Testing Guidance (PDF)

    NSP-1000 reference: PDF page(s) 52–64.

    Electrical specifications

    Model and output NSP-1000-27MOD; single output 27 V DC, current range 0–37 A; rated power 999 W.
    Input voltage and frequency 85–305 V AC or 120–431 V DC; 47–63 Hz. 277 V AC operation is supported within the stated limits.
    Efficiency 93% typical.
    Series capability reference The NSP-1000 series offers efficiency up to 94% and peak power up to 200% on the documented peak-capable models. Use the selected model’s current, power, voltage and thermal limits below; these series maxima are not unconditional individual ratings.
    Voltage adjustment 24.3–32.4 V.
    Ripple and noise 200 mV p-p maximum; measured with 20 MHz bandwidth using a 12-inch twisted pair terminated by 0.1 µF and 47 µF capacitors in parallel.
    Voltage tolerance ±1.0%; includes setup tolerance, line regulation and load regulation.
    Line regulation ±0.5%.
    Load regulation ±0.5%.
    Power factor 0.98 / 0.95 / 0.92 typical at 115 / 230 / 277 V AC respectively, full load.
    AC input current 12 / 6 / 5 A typical at 115 / 230 / 277 V AC respectively.
    Inrush current 25 / 40 / 50 A typical, cold start at 115 / 230 / 277 V AC respectively.
    Setup and rise time 2500 / 80 ms at 115 V AC; 1500 / 80 ms at 230 and 277 V AC. Setup is measured at first cold start; repeated ON/OFF operation may increase setup time.
    Hold-up time 12 ms at 70% load and 8 ms at full load, typical.
    Switching frequency Block diagram: PFC 65 kHz; PWM 85 kHz.
    General measurement conditions Unless specially stated, parameters are measured at 230 V AC input, rated load and 25°C ambient.

    Peak operation and protection

    Peak output 64 A; 2000 W, each stated for 5 seconds in the model table. Observe the peak-power function, input and temperature limits together.
    Peak-power duty and average load With peak power Ppk, non-peak power Pnpk, pulse duration t and period T: Pav = [Ppk × t + Pnpk × (T − t)] / T ≤ rated output power; t ≤ 5 seconds; duty = t/T × 100% ≤ 35%. The plotted duty limits below may be lower.
    Peak-power input dependence The 200 V AC graph allows 35% duty through 150% peak power, falling to 10% at 175% and 5% at 200%. The 100 V AC graph falls from 35% at 110% peak power to 10% at 133% and 5% at 150%. Do not use a higher peak level outside its plotted input and temperature conditions.
    Peak power at upper voltage adjustment When output voltage is adjusted to its upper limit, peak power is limited to 150% of rated power.
    Peak table reference The 27 V table separately prints 64 A peak current and 2000 W peak power. Retain both catalogue limits and confirm the permitted operating point with MEAN WELL; do not calculate a replacement current from the power entry.
    Short-circuit protection Peak Load Mode: constant-current limiting for more than 5 seconds, then output shutdown; cycle power to recover. Current Limiting Mode: constant-current limiting with automatic recovery after the fault is removed.
    Overload protection Peak Load Mode: output power above 105% of rated power for more than 5 seconds causes shutdown; above 200%, constant-current limiting for more than 5 seconds then shutdown. Cycle power to recover. Current Limiting Mode limits current and recovers automatically after the fault is removed.
    Overvoltage protection 33–42 V; output shutdown and latch-off; cycle power to recover.
    Overtemperature protection Output shutdown; automatic recovery after temperature falls.

    Control and interface functions

    Communication configuration MODBus model. Blank suffix is the standard CANBus configuration; MOD is the by-request MODBus configuration. Communication supports control, setting and monitoring. OR/MODOR are separate by-request OR-ing FET options, not included merely by selecting this model.
    Output-voltage programming DIP-SW1 position 3 OFF selects the SVR potentiometer; ON selects external PV. Apply external voltage between CN1 pin 5 PV and pin 11 GND. The graph is labelled Non-Linear: about 1% output at 1 V, rising to 120% at 4.7 V and flat to 4.8 V. The overall function is described as 0–120%; observe this model-specific ceiling. Under some PV conditions, ripple may exceed the tabulated ripple rating.
    Output-current programming DIP-SW1 position 2 OFF uses the default OLP value; ON enables PC. Apply external voltage between CN1 pin 6 PC and pin 11 GND for 0–100% rated-current programming. The Non-Linear graph marks about 1% at 1 V and 100% at 4.7 V, flat to 4.8 V; do not assume a linear transfer function.
    Remote ON/OFF Short CN2 pin 1 R.C. to pin 2 +5V-AUX for ON; open for OFF. ON input: 4.5–5.5 V DC; OFF: −0.5 to +0.5 V DC. Maximum input is 5.5 V DC. Use an external switch, optocoupler or relay as illustrated.
    Remote and local sensing For remote sensing, CN1 pin 2 +RS goes to load positive and pin 4 −RS to load negative.
    Parallel operation The series describes up to 4000 W (3+1). Below 5% total rated-current load, sharing can be unbalanced, units can enter standby and their LEDs may be off.
    Parallel bus and termination Connect DA, DB and GND mutually between units; twist long signal wiring. CN1 pins 13/14 are DA, 15/16 DB and 11/12 GND. DIP-SW1 position 4 switches the 120 Ω sharing-bus termination. For two to four units, terminate the first and last unit (ON), with intermediate units OFF. The single-unit table and non-parallel diagram differ; confirm the standalone setting for the supplied revision.
    CN1 control connector pin map 1 +Vo(signal); 2 +RS; 3 −Vo(signal); 4 −RS; 5 PV; 6 PC; 7/8/9/10 A0/A1/A2/A3 address inputs; 11/12 GND; 13/14 DA; 15/16 DB. PV and PC are non-isolated signals referenced to GND. Address selection is distinct from the four-unit parallel limit.
    CN2 control connector pin map 1 R.C.; 2 +5V-AUX; 3 DC-OK; 4 and 6 GND-AUX; 5 +12V-AUX; 7 D+; 8 D−; 9 RTA; 10 RTB. RTA/RTB provide the 120 Ω communication termination. These control signals are isolated and referenced to GND-AUX.
    Auxiliary outputs 5 V / 0.2 A (4.25–5.75 V), tolerance ±15%, ripple 150 mV p-p; 12 V / 0.8 A (10.2–13.8 V), tolerance ±15%, ripple 450 mV p-p. Both have built-in OR-ing diodes and remain active when R.C. disables the main output. GND-AUX is pins 4/6 per the pin-function row; the auxiliary prose incorrectly refers to pin 2, which is +5V-AUX. Verify wiring against the supplied connector definition.
    DC OK signal Maximum 5 V DC / 10 mA resistive load; output-only, maximum sourcing current 10 mA. High 3.5–5.5 V when Vout ≤77% ±5%; low −0.5 to +0.5 V when Vout ≥80% ±5%, referenced to GND-AUX.
    LED status indications Steady green: normal operation. Steady red: remote OFF. Orange one blink/pause: internal overtemperature warning. Red blink/pause counts: 1 overload/short circuit; 2 overvoltage; 3 overtemperature; 4 fan failure; 5 AC undervoltage; 6 other hardware faults. In PC mode, OLP/SCP constant-current operation retains a steady green indicator.

    Environment and thermal limits

    Operating environment −40 to +85°C, with both input-voltage and temperature derating; 20–90% RH, non-condensing. The curve limits determine usable output, not the temperature range alone.
    Ambient-temperature derating Horizontal mounting. At 85–135 V AC, continuous output is 100% through +50°C and 30% at +85°C; the low-line graph starts at −30°C. At 180–305 V AC, continuous output is 60% at −40°C, 100% from −30°C through +60°C, and 30% at +85°C. Follow the applicable curve between marked points.
    Peak-temperature envelope For peak-capable outputs, the 85–135 V AC graph shows 150% from 0 to +50°C, 120% at +60°C and 45% at +85°C. The 180–305 V AC graph shows 200% from 0 to +60°C and 60% at +85°C. These are peak envelopes only; duty, duration and average-power limits still apply.
    Input-voltage derating The 60 Hz input graph permits 80% continuous load at 85 V AC, rising to 100% at 100 V AC and remaining at 100% through 305 V AC. Apply temperature derating simultaneously.
    Storage and vibration Storage: −40 to +85°C and 10–95% RH, non-condensing. Vibration: 10–500 Hz, 2 G, 10 minutes per cycle, 60 minutes each along X, Y and Z.
    Temperature coefficient ±0.03%/°C from 0 to +60°C.
    Altitude derating Above 2000 m, reduce allowable ambient temperature by 5°C per additional 1000 m for this fan-cooled model. The safety-category altitude limits below also apply.
    Fan control and noise Built-in intelligent speed control based on internal temperature. ISO-7779 test conditions: 30 dB at 10% load and Ta =25°C; 45 dB at 70% load and Ta =25°C. The general low-noise feature is not a guarantee of less than 24 dB.

    Safety and EMC

    Safety standards CB: IEC 62368-1, IEC 60335-1, IEC 61558-1/-2-16, IEC 61010-1/-2-201, IEC 60601-1 and IEC 62477-1. DEKRA: corresponding BS EN/EN standards, including EN 60601-1 version 3.2. UL: UL 62368-1, ANSI/AAMI ES60601-1 version 3.2 and UL 61010-1/-2-201. CCC GB 4943.1, BSMI CNS 15598-1, EAC TP TC 004 and SEMI F47 are listed. Integration into final equipment remains subject to its applicable requirements.
    By-request certifications KC 62368-1 and BIS IS 13252 (Part 1) certification is by request with no stock; confirm the actual ordered version. A BIS logo may be absent on some factories or models; contact MEAN WELL for details.
    Medical insulation and leakage Primary–secondary: 2 × MOPP; primary–earth: 1 × MOPP; secondary–earth: 1 × MOPP. MOPP applies only at 100–240 V AC input. The series is intended for BF-related medical equipment applications, subject to final-system compliance. Earth leakage is <350 µA rms and touch current <100 µA rms at 277 V AC.
    Overvoltage category and altitude IEC/EN 61558-1/-2-16: OVC III up to 2000 m. IEC/EN/UL 62368-1, IEC/EN 60335-1, IEC/EN/UL 61010-1/-2-201 and IEC/EN 62477-1: OVC II up to 5000 m. IEC/EN/ANSI/AAMI ES60601-1: OVC II up to 4000 m. Do not combine the OVC III rating with the 5000 m limit.
    SELV scope for this voltage IEC/EN 61558-2-16: SELV; IEC/EN 60335-1: SELV; IEC/EN/UL 62368-1: SELV/ES1. Observe the listed standard-specific voltage ranges.
    Dielectric strength Input–output 4 kV AC; input–FG 2 kV AC; output–FG 1.5 kV AC.
    Insulation resistance 100 MΩ at 500 V DC, 25°C and 70% RH for input–output, input–FG and output–FG.
    EMC emissions BS EN/EN 55032 (CISPR 32), CNS 15936, GB/T 9254.1, KS C 9832: Class B; BS EN/EN 55011 (CISPR 11): Class B. BS EN/EN 55014-1 (CISPR 14-1) is also listed, without a separate class in that row.
    Harmonic current and flicker EN/IEC 61000-3-2: Class A. Voltage flicker: EN/IEC 61000-3-3.
    Immunity framework BS EN/EN 55035 (CISPR 35), EN/IEC 61000-6-2, EN/IEC 60601-1-2, EN 55014-2 (CISPR 14-2), KS C 9835 and SEMI F47 tested at 200 V AC.
    Immunity levels IEC 61000-4-2 ESD: Level 4, 15 kV air / 8 kV contact. IEC 61000-4-3: Level 3, 10 V/m at 80 MHz–2.7 GHz; Table 9, 9–28 V/m at 385 MHz–5.78 GHz. IEC 61000-4-4 EFT/burst: Level 3, 2 kV. IEC 61000-4-5 surge: Level 4, 2 kV line–line / 4 kV line–earth. IEC 61000-4-6 conducted: Level 3, 10 V. IEC 61000-4-8 magnetic field: Level 4, 30 A/m.
    Voltage dips and interruptions IEC 61000-4-11: >95% dip for 0.5 period, 30% dip for 25 periods, and >95% interruption for 250 periods.
    Component EMC test arrangement The EMC metal test plate is not a supplied accessory.

    Mechanical details and accessories

    Dimensions 230 × 127 × 41 mm (L × W × H); drawing tolerance ±1 mm.
    Chassis mounting Eight M4 side positions, 5 mm maximum penetration; five M4 bottom positions, 3 mm maximum penetration. Mounting torque: 8–10 kgf·cm for both groups. Side spacing 170 mm with 40 mm end offset; vertical references 18/12.5 mm and local 2.5/10.5/6.9/13.3 mm. Bottom references: 159.7 ×90 mm outer spacing, 39.3 mm left and 18.5 mm lower offsets; centre position 83 mm horizontally and 45 mm vertically. Bracket installation span is 170 ×147 mm; rear fan projection is 3 mm.
    Power terminals Input 1 AC/L or DC +Vin, 2 AC/N or DC −Vin, 3 FG: M3.5, 8–10 kgf·cm. Output 4 −Vo, 5 +Vo: M5, 10–12 kgf·cm. Top-view input-terminal references 12.9/10/10 mm; output references 27.2/19.5 mm.
    Control connector hardware CN1 HRS DF11-16DP-2DS or equivalent, with JS-2008R-08X2 mating housing and JS-2007-08X2 terminal. CN2 HRS DF11-10DP-2DS or equivalent, with JS-2008R-05X2 housing and JS-2007-05X2 terminal.
    Standard control harnesses The accessory list specifies one each of four standard assemblies: CN1 and CN2 loop/jumper assemblies, UL1061 28 AWG with a 15 mm reference; and CN1 and CN2 full mating-wire assemblies, UL1007 28 AWG, 50 ±5 mm. The jumper drawings identify CHYAO SHIUN JS-2007-08X2 and JS-2007-05X2 or equivalent.
    Optional accessories Terminal cover(s) PEE4TBC-03: by request, ordered separately, one of each applicable cover per unit. PGG2MHS012 mounting brackets: four per unit, by request and ordered separately; the installation drawing uses four M4 screws.
    Unit packing reference 1400 g, catalogue packing reference per unit; not a measured net-weight claim.
    Outer packing 9 units / 12.6 kg / 0.85 CUFT.
    Reliability The 2026-05-06 model datasheet specifies 910.8k hours minimum, Telcordia SR-332 (Bellcore); 87.5k hours minimum, MIL-HDBK-217F at 25°C. The June 2026 user manual instead lists 684.7k and 69.2k hours minimum for the same respective methods. Confirm the applicable document revision for the supplied unit.
    Construction and warranty Conformal coating.

    Application information

    Typical uses Industrial automation and control systems, security, mechanical and electrical equipment, electronic instruments, networking, telecom, PoE power sourcing, home automation and medical equipment integration. The series also lists supercapacitor applications, subject to the appropriate control and load design.

    Digital measurement and setting reference

    Digital readback specifications READ_VIN: 85–305 V, tolerance ±4.60 V. READ_VOUT: 0–35 V, tolerance ±0.27 V. READ_IOUT: 0–80 A, tolerance ±0.4 A. READ_TEMPERATURE_1: −49 to +125°C, tolerance ±5°C. READ_IOUT displays zero below the listed minimum readable current of 0.4 A ±0.4 A. These are measurement characteristics, not extended operating ratings.
    Digital setting tolerances and defaults VOUT_SET tolerance ±0.27 V, default 27 V; IOUT_SET tolerance ±0.4 A, default 40.7 A. OPERATION defaults to ON. The command ranges in Digital setting limits do not extend continuous operating ratings.

    Installation and operating guidance

    Installation and airflow Disconnect AC before wiring or maintenance. Connect FG to protective earth, secure the chassis, observe polarity and prevent shorts. Keep at least 15 cm clear around air openings and away from adjacent heat sources; avoid blocked airflow, excessive dust, moisture, direct sunlight and high-temperature locations.
    Power wiring and mounting guidance The manual recommends 14 AWG AC wiring and output wires shorter than 1 m where practical. Size DC conductors for actual continuous and permitted peak current and installation rules. Input M3.5 terminals use 8–10 kgf·cm; output M5 terminals use 10–12 kgf·cm. M4 mounting screws use 8–10 kgf·cm, with maximum insertion of 5 mm at the sides and 3 mm at the bottom.
    Peak-load operating conditions Peak-load mode requires SW1 position 1 ON and position 2 OFF. Peak duration must not exceed 5 s, duty must not exceed 35% or the applicable plotted limit, and average power must not exceed rated power. The maximum is twice rated power at input ≥200 VAC and 1.5 times rated power below 200 VAC, subject to input/temperature derating; at 85 VAC the manual applies an additional 80% rating factor. Allow the recommended 10 s OFF interval before restarting.
    Control mode and priority SW1 positions 1/2 select peak mode (ON/OFF), continuous 110% current limiting (OFF/OFF), programmed current limiting with 5 s shutdown (ON/ON), or continuous programmed current limiting (OFF/ON). Peak output is unavailable in the current-limiting modes or when digital current control is enabled. Voltage priority is digital control > PV > SVR; current priority is digital control > PC. Keep voltage, current and power within the selected model’s allowed operating envelope.
    Parallel installation and SW1 position 4 confirmation Use no more than four units, equalize output voltages to a difference below 0.2 V and use short, large conductors. Total current must not exceed rated current × number of units × 0.9; keep total load above 5% for current sharing. For 2–4 units, set parallel SW1 position 4 ON at the first and last units and OFF at intermediate units. The documents disagree on standalone SW1 position 4; confirm the supplied revision’s single-unit setting before energizing. Consult the manufacturer for parallel output below 1.5 V.
    Remote control, sensing and auxiliary reference For CN2 remote control, short RC pin 1 to +5V-AUX pin 2 for ON and leave open for OFF. GND-AUX is CN2 pins 4/6, not pin 2. The auxiliary outputs remain available with remote output OFF. Use twisted remote-sense wires and compensate no more than 0.5 V; for local sensing connect CN1 +RS pin 2 to +Vo-Signal pin 1 and −RS pin 4 to −Vo-Signal pin 3. Signal pins are not load terminals.
    Communication setup and control enable MODBus RTU: 115200 bps, 8 data bits, no parity, 1 stop bit and no flow control. Slave addresses are 0x80 plus the hardware ID; 0 is broadcast. Use MOD_CTRL in SYSTEM_CONFIG 0x00C4 to enable control. Factory-default communication permits reading while control remains inactive. Set the intended values and enable the protocol’s control bit before relying on digital control. Sixteen hardware addresses do not mean sixteen units may be paralleled.
    Communication termination and saved settings Use the CN2 RTA/RTB pins 9/10 hardware definition for enabling the internal 120 Ω communication terminator at the bus ends; verify the supplied hardware revision. This is separate from parallel SW1 position 4. EEPROM writes have finite endurance: EEP_OFF 0 enables storage (default), 1 disables it; EEP_CONFIG 0 saves immediately (default), 1 after 1 min without a change, 2 after 10 min, and 3 is reserved.
    Digital setting limits The manual lists VOUT_SET 0.27–32.4 V and IOUT_SET 0.37–40.7 A for this voltage model. These are command limits, not a guarantee of continuous operation at every voltage/current combination. IOUT_SET above rated current remains a current-limit setting; respect rated output power, derating and the selected protection mode. Readback ranges and low-current zero-reading thresholds are measurement characteristics, not extended operating ratings.
    Indicators and fault handling Steady green indicates normal operation; steady red indicates remote OFF. An orange single-flash notification warns of high ambient temperature without stopping output. Numbered red alarms identify 1 overload/short circuit, 2 overvoltage, 3 overtemperature, 4 fan fault, 5 AC undervoltage and 6 other faults. Remove the cause before recovery. Automatic thermal recovery is the specified behavior; the service procedure separately recommends disconnecting AC, allowing cooling and then restarting. Avoid condensation when recovering from low temperature.
    Document revision and warranty scope Use the 2026-05-06 model datasheet for the listed ratings and MTBF; the June 2026 user manual gives different MTBF figures. Resolve hardware-setting differences against the supplied revision. The manual states a five-year warranty under normal usage; unauthorized modification or replacement of internal parts is outside its stated conditions.
    Complete-system EMC verification The model datasheet records EMC testing on a 720 × 360 × 1 mm metal plate. This is a test arrangement, not a required installation clearance. Recheck EMC with the power supply installed in the final equipment and connected to a representative load; wiring and assembly affect the result. The linked component EMI guidance does not certify the finished equipment.

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