MEAN WELL NCP-3200-48CAN is a 1U rack-mounted power module with 48 V factory output, 67 A factory current and 3216 W maximum rated power. It also supports selectable two- or three-stage battery charging and fits the DHP-1UT-B rack. This complete ordering code selects CANBus communication.
Product Datasheet
Download MEAN WELL NCP-3200 Datasheet (PDF)
The NCP-3200 section is on PDF pages 23, 24, 25, 26, 27, 28, 29, 30, 31, 32. Refer to the complete mechanical drawings and notes when planning installation.
Power Supply Ratings
| DC output voltage |
48 V |
| Rated output current |
67 A |
| Maximum output power |
3216 W |
| Output current range |
0–67 A |
| Voltage adjustment range |
47.5–58.8 V |
| Ripple and noise, maximum |
480 mVp-p |
| Voltage tolerance |
±1.0% |
| Line / load regulation |
±0.5% / ±0.5% |
| Communication option |
CANBus |
Power supply operation is the factory default. Voltage, current, power, input and thermal limits apply together; the separate maximum values are not available simultaneously at every setting.
Ripple is measured at 20 MHz using a 12-inch twisted pair terminated with parallel 0.1 µF and 47 µF capacitors. Light-load ripple can increase under variable load or parallel operation and returns to its normal level above 5% load. PV adjustment can also increase ripple under some conditions. Voltage tolerance includes setup, line and load effects.
Input and Timing
| AC input |
90–264 VAC |
| DC input |
127–400 VDC |
| Input frequency |
47–63 Hz |
| Typical AC current |
17 A at 230 VAC |
| Typical power factor |
0.97 at 230 VAC, full load |
| Typical PSU efficiency |
94.5% at 75% load |
| Cold-start inrush |
55 A at 230 VAC |
| Leakage current |
<2 mA at 230 VAC |
| Setup / rise time |
1500 ms / 60 ms at 230 VAC, full load |
| Typical hold-up |
16 ms at 230 VAC, 70% load; 8 ms at full load |
Unless otherwise specified, values use 230 VAC input, rated load and 25°C ambient. The block diagram shows active inrush limiting, PFC at 110 kHz and PWM at 90 kHz.
Cooling and Derating
| Cooling |
Built-in DC fans with intelligent speed control |
| Horizontal thermal curve |
80% at −30°C, 100% from −20 to +50°C, then 50% at +70°C |
| Cold operating region |
−30 to −20°C: 230 VAC input only |
| AC-input load curve |
50% at 90 VAC, increasing to 100% at 180 VAC; full load through 264 VAC, at 60 Hz |
| 90 VAC operating point |
1608 W / 33.5 A |
Apply the AC and temperature derating simultaneously. The 48 V efficiency-versus-load graph is measured at 230 VAC; it is not an efficiency guarantee for every model and load. Keep the intake and exhaust unobstructed.
Protection
| PSU overload |
105–115% of rated current; constant-current limiting, shutdown after 5 seconds, re-power to recover |
| Overvoltage |
63–75 V; output shutdown, re-power to recover |
| Overtemperature |
Output shutdown; automatic recovery after cooling |
| Low output in PSU control |
Output below 80% of Vset for 5 seconds: shutdown; re-power to recover |
Short-circuit protection is listed as a series feature. The specified limiting, power and recovery conditions must be observed; no separate undocumented short-circuit timing is assumed.
Selectable Battery Charging
| Default boost charge voltage |
57.6 V |
| Default float charge voltage |
55.2 V |
| Default charging current |
55 A |
| Suggested battery capacity |
180–550 Ah |
| Typical charger efficiency |
94% |
| Typical battery leakage |
<1.5 mA |
| Preset gel boost / float |
56 / 54.4 V |
| Preset flooded boost / float |
56.8 / 53.6 V |
| Preset AGM boost / float |
58 / 54 V |
Select charger mode through the fitted communication interface or the separately available SBP-001 programmer. The charging-curve default is three-stage CC/CV/float; two-stage CC/CV operation is also supported. At the indicated 10% of CC transition, the three-stage curve enters float, while the two-stage graph shows battery-full completion. Two-stage presets use the same boost values without a float stage.
Default and preset curves retain the listed CC setting. Charging parameters and stage timeouts can be programmed through communication; SBP-001 programming requires a personal computer. The catalogue lists flooded, gel and AGM lead-acid batteries and lithium-ion iron/manganese types. Confirm the actual battery chemistry, voltage and maximum permitted charging current with the battery manufacturer before choosing a curve; the Ah range is a recommendation, not universal battery compatibility.
Output Voltage and Current Programming
| PV adjustment |
50–125% of the graph’s nominal reference voltage |
| PC adjustment |
20–100% of rated current |
| PV connection |
CN1 pin 25 to CN1 pin 26 (−V signal) |
| PC connection |
CN1 pin 17 to CN1 pin 26 (−V signal) |
PV applies to power supply operation. The graph uses 24/48 V as the 100% voltage reference. Below 0.4 V control input the output is at its factory setting; 0.4–1 V selects 50%, then the curve rises nonlinearly toward 125% at approximately 4.7 V control input. Use the published curve rather than assuming a linear conversion over the entire control range.
Available output current changes with the voltage setting: 80% from 50–90% output voltage, rising to 100% at 95%, then remaining at 100% through 100% voltage. Above that, current decreases to 80% at 125% voltage (30 V or 60 V). The graph’s 100% current reference is 133/67 A. Always keep output within the maximum power limit.
For PC, 0.4–1 V control input corresponds to 20% current; the nonlinear rising region reaches 100% at 4.7 V and remains at 100% to 5 V. The plot below 0.4 V is an approximately 110% limiting region, not an additional rated operating range. Very low constant-current settings can increase ripple. Output below 80% of Vset for 5 seconds causes shutdown; re-power to recover.
Remote and Local Sense
Remote sense is available only for the 24 V / 48 V models in power supply mode. Connect CN1 pin 28 (+S) to load positive and pin 27 (−S) to load negative using a twisted pair; compensation is up to 0.5 V.
When remote sense is not used, connect pin 28 (+S) to pin 29 (+V signal) and pin 27 (−S) to pin 26 (−V signal). Signal pins are not power terminals and must not carry the load current.
Connector, Control and Auxiliary Outputs
| CN1 connector |
C27309-10749-Y |
| Mating housing |
C27209-10749-Y |
| Pins 1, 2 / 3, 4 |
−V output / +V output |
| Pin 5 |
+12V-AUX: 10.8–13.2 V, 0.8 A maximum |
| Pin 6 |
+5V-AUX: 4.5–5.5 V, 0.3 A maximum |
| Pin 7 |
GND-AUX; isolated signal return |
| Pin 8 / pin 9 |
AC-OK / T-ALARM |
| Pins 10, 24 |
NC; reserved |
| Pin 11 / pin 12 |
CANL / CANH |
| Pin 13 |
Remote ON-OFF |
| Pin 14 |
DC-OK |
| Pins 15, 16 |
DA, DB: differential parallel-control signals |
| Pin 17 |
PC |
| Pins 18, 19, 20, 21 |
A2, A3, A4, A5: rack-system addressing |
| Pins 22, 23 |
A0, A1: module addressing |
| Pin 25 |
PV |
| Pin 26 |
−V signal; control reference, not a load terminal |
| Pins 27, 28, 29 |
−S, +S, +V signal; 24 V / 48 V PSU sense only |
| Pins 30, 31, 32 |
FG, AC/N, AC/L |
Use the rear-view orientation and complete connector assignment in the mechanical drawing. Ask MEAN WELL for the correct mating assembly; the catalogue identifies the housing but does not provide a separate full crimp-contact ordering code.
Remote ON-OFF is between pin 13 and pin 6 (+5V-AUX): short / 4.5–5.5 V means ON; open / −0.5 to +0.5 V means OFF. Maximum input is 5.5 V. The auxiliary outputs have OR-ing diodes and are not switched by this remote control; both use GND-AUX pin 7.
Auxiliary ratings are 5 V at 0.3 A, ±10%, 150 mVp-p ripple and 12 V at 0.8 A, ±10%, 450 mVp-p ripple. PV, PC, parallel and address signals are non-isolated and reference −V signal; communication, remote and alarm signals reference the isolated GND-AUX.
Communication, Alarms and Indicators
The CAN suffix selects CAN 2.0B. The catalogue prints a maximum bus speed of 250 KHz; use the protocol manual for bus setup and message details.
Alarm outputs are isolated TTL, referenced to GND-AUX, output-only and rated 10 mA maximum. High is 3.5–5.5 V and low is −0.5 to +0.5 V. AC-OK is high at input ≥87 Vrms and low at ≤75 Vrms. T-ALARM is high for temperature alarm or fan failure, and low during normal operation.
In power supply mode, DC-OK is high when output is ≤77% ±5%, and low when output is ≥80% ±5%. In charger mode the thresholds are ≤66% ±5% high and ≥67% ±5% low; DC-OK is associated with battery-low protection.
The status LED is green during normal power supply operation and steady red for abnormal protection/fan status. Flashing red at an internal temperature of 60°C signals an alarm while normal operation continues without entering OTP. In charger mode, orange identifies CC/CV charging, green identifies float, and red also covers charging timeout. The two-stage graph identifies green at battery full.
Rack Operation and Accessories
| Compatible rack |
DHP-1UT-B |
| Parallel arrangement |
Up to four identical modules per rack; up to ten racks / forty modules |
| Controller series |
CMU2; select the compatible controller configuration |
| Charging programmer |
SBP-001 with a personal computer |
A DHP-1UT-B rack accepts identical 24 V modules or identical 48 V modules; do not mix unlike voltage/current models in one parallel group.
For parallel racks, set output-voltage differences to less than 0.2 V, join DA, DB and −V control lines as shown, and configure the parallel system before connecting the load. Use the matching rack manual and protocol arrangement. A 10% reduction in total output current is recommended to avoid unequal limiting caused by component tolerances; the maximum module count is not a promise of unrestricted full-power operation.
The module supports hot swap and built-in OR-ing FET or diode isolation. Racks, programming equipment and controller configurations are separate selection items; confirm the actual supply scope.
Mechanical Installation
| Dimensions, L × W × H |
325.8 × 107 × 41 mm |
| Catalogue unit weight |
2300 g; catalogue packing reference per unit, not measured net or shipping weight |
| Case drawing |
294B; general dimensional tolerance ±0.5 mm |
| Mounting details |
Two M4 L=5 positions per side; two Ø2.8 holes per side |
| Body and projection details |
276 mm marked mounting-centre spacing; 10.5 mm maximum connector projection; handle projects 29.3 mm |
Follow the drawing for the separate 127 mm and 137 mm mounting-envelope dimensions, rather than treating them as body width. The front contains the handle, status indicator and controlled fans; airflow arrows point from the front toward the connector end. The built-in adjustment is marked SVR. The series describes power density up to 37 W/in³; this is a series upper claim.
Environment and Reliability
| Operating ambient |
−30 to +70°C, subject to input and thermal derating |
| Operating humidity |
20–90% RH, non-condensing |
| Storage |
−40 to +85°C; 10–95% RH, non-condensing |
| Temperature coefficient |
±0.03%/°C from 0 to 50°C |
| Vibration |
10–500 Hz, 2G; 10 minutes/cycle, 60 minutes each along X, Y and Z |
| Minimum calculated MTBF |
510.5 thousand hours, Telcordia SR-332; 45.8 thousand hours, MIL-HDBK-217F at 25°C |
| Manufacturer warranty |
5 years |
For fan-cooled operation above 2000 m, reduce permissible ambient temperature by 5°C per additional 1000 m. This derating note does not establish a maximum operating altitude.
Safety and EMC
| Dielectric withstand |
Input/output: 3 kVAC; input/FG: 2 kVAC; output/FG: 1.5 kVAC |
| Insulation resistance |
100 MΩ between input/output, input/FG and output/FG; 500 VDC, 25°C, 70% RH |
| Conducted / radiated emissions |
BS EN/EN 55032 (CISPR32): Class B conducted / Class A radiated |
| Harmonic current / voltage flicker |
BS EN/EN 61000-3-2 Class A / BS EN/EN 61000-3-3 |
The power supply specification lists UL 62368-1, CSA C22.2 No. 62368-1, TUV BS EN/EN 62368-1 and EAC TP TC 004 approvals, with design referring to AS/NZS 62368.1. RCM is voluntary under the referenced IEC/AS/NZS requirements. These component qualifications do not certify the completed installation. The power supply design refers to SEMI F47 at 200 VAC.
Immunity references BS EN/EN 55024 and 61000-6-2, with tests under 61000-4-2/-3/-4/-5/-6/-8/-11: ESD 8 kV air and 4 kV contact; radiated RF, EFT/burst and conducted RF Level 3; surge 2 kV line-to-line and 4 kV line-to-earth; magnetic field Level 4. Voltage dips are >95% for 0.5 period and 30% for 25 periods; interruptions are >95% for 250 periods.
The catalogue EMC arrangement mounts the component on a 600 × 900 mm metal plate, 1 mm thick. Reconfirm compliance in the final equipment.
