Name: MEAN WELL BIC-5K series: bidirectional power supply - BIC-5K-24MOD
Brand: MEAN WELL
SKU: BIC-5K-24MOD
Price: 4160.7 USD
Availability: InStock

MEAN WELL BIC-5K series: bidirectional power supply - BIC-5K-24MOD

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Description

BIC-5K-24MOD Bidirectional Power Supply

MEAN WELL BIC-5K-24MOD is a bidirectional power supply for energy recovery, with Modbus RTU (RS-485) communication. It provides 24 V DC nominal, 208 A rated and 4992 W rated in AC-to-DC operation, and a typical 5000 W AC output when returning DC energy to the grid. Observe the voltage, current, power and derating limits together; grid-return operation synchronizes to the connected AC mains.

Download MEAN WELL BIC-5K Datasheet (PDF)
Download MEAN WELL BIC-5K User Manual (PDF)

Model and application

Parameter	Details
Model and communication	BIC-5K-24MOD: 24 V version, MOD suffix = Modbus RTU over RS-485. Communication provides control, settings and monitoring; select the protocol supported by the controller.
Applications and construction	Battery formation/grading, energy-recovery test systems, V2G, marine or vehicle charging, energy storage, electrolysis and wastewater-treatment equipment. Fully digital design with conformal coating. Suitability depends on the complete system and its operating limits.
Warranty reference	The manufacturer’s catalog states a 5-year warranty; its applicable terms govern this statement.

AC-to-DC operation

Parameter	Details
DC rated output	24 V nominal; 208 A rated; 4992 W rated. Do not exceed the rated output power when adjusting voltage and current.
DC voltage and current ranges	Voltage: 19–33 VDC. Current-setting range: 0–208 A. Full-power voltage range: 24–33 VDC.
Ripple and noise	350 mVp-p maximum; measured at 20 MHz bandwidth with a 12-inch twisted pair terminated by 0.1 μF and 47 μF capacitors in parallel.
DC regulation	Voltage tolerance ±2.0%, including setup tolerance, line and load regulation. Line regulation ±1.0%; load regulation ±1.0%.
Setup and rise time	8000 ms setup; 150 ms rise at 230 VAC and full load.
AC input	180–305 VAC, 47–63 Hz, including 277 VAC operation. Typical current: 27 A at 230 VAC; typical inrush: 120 A at 230 VAC. Peak leakage current: 7.07 mA at 305 VAC.
AC-to-DC performance	Typical efficiency 91%, tested at 75% linear load, 230 VAC and 24 VDC. Typical power factor ≥0.99 at 230 VAC/full load. THD <3% at 100% load/230 VAC.

DC-to-AC and charging operation

Parameter	Details
DC input for grid return	19–33 VDC; full-power range 24–33 VDC; maximum input current 232 A; maximum input power 5665 W.
AC grid-return output	5000 W typical; voltage 180–305 VAC and frequency 47–63 Hz, determined by the connected AC mains. Typical AC current: 22.5 A at 230 VAC. This function feeds energy back to the grid; it is not a standalone AC source.
DC-to-AC performance	Typical efficiency 91%, under the catalog’s 75% linear-load, 230 VAC and 24 VDC test conditions. Typical power factor 0.99 at 230 VAC/full load; THD <3% at 100% load/230 VAC.
Bidirectional switching	1 ms typical for this voltage version. In the factory auto-detect mode, a set voltage above load voltage selects AC-to-DC; a set voltage below load voltage selects DC-to-AC.
Battery direction control	In the enabled battery mode, DIRECTION_CTRL = 00h selects AC-to-DC charging and 01h selects DC-to-AC discharging. Use the mode-specific command and wiring instructions in the user manual.
Three-stage charging	Constant current → constant voltage → float. Default boost 28.8 V, float 27.6 V and CC maximum 171 A; charging-voltage adjustment 20–33 V through the fitted communication protocol. Match the settings to the battery’s permitted charging limits. The catalog lists flooded, gel and AGM lead-acid and lithium-ion applications; alarm/shutdown/restart setpoints are defined in the user manual.

Protection and operating conditions

Parameter	Details
Overload	105–115% of rated output power. AC-to-DC: constant-current limiting, then DC output shutdown 5 seconds after the DC output voltage becomes low; re-power to recover. For DC-to-AC, the catalog describes a constant-power design rather than a separate overload operating region.
Short circuit	Output current shuts down; re-power to recover.
DC overvoltage	34–35 V; output voltage shuts down and requires re-powering for recovery.
Temperature and islanding	Overtemperature: output shuts down and automatically recovers after cooling. Islanding protection: AC output shuts down; re-power to recover. The unit also monitors AC failure and fan faults.
Cooling and fan noise	Built-in fan cooling with speed controlled by internal temperature. Typical fan noise: 54 dB at both 10% and 70% load, at 25°C ambient; measurement setup follows ISO 7779.
Temperature/load derating	Operating ambient −30°C to +70°C. In the horizontal-mounting curve, 100% load is allowed to +40°C; indicated limits are 80% at +50°C, 50% at +60°C and 25% at +70°C. Apply the curve and all other applicable limits.
AC-voltage/load derating	At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC; 100% from 200 to 305 VAC.
DC-voltage/load derating	The static curve starts at 75% load at 19 VDC and reaches 100% at 24 VDC. Use the specified full-power range 24–33 VDC.
Humidity, storage and temperature coefficient	Working humidity 20–90% RH, non-condensing. Storage −40°C to +85°C, 10–95% RH, non-condensing. Temperature coefficient ±0.03%/°C over 0–40°C.
Vibration	10–500 Hz, 3G, 10 minutes per cycle; 60 minutes along each X, Y and Z axis.

Parallel and system configuration

Parameter	Details
Parallel capacity and current limit	Active current sharing is available only in BIC mode, for up to 6 units; the catalog calls the arrangement up to 30 kW (5+1 units). Maximum parallel output current = rated current per unit × number of units × 0.95. This current limit and each unit’s power/derating limits still apply.
Parallel wiring and PRL	Use short, large-diameter DC wiring to a common load. The unit with the highest output voltage becomes master and determines the DC bus voltage. Below 5% of the combined rated current, sharing may be unbalanced. Connect PAR1/PAR2 as illustrated; twist long parallel-signal runs in pairs. PRL is ON for a single unit, or ON at both ends of a multi-unit chain and OFF on intermediate units.
Three-phase system arrangement	The catalog permits multiple units in a three-phase, four-wire Y system. Connect each unit between its assigned phase and neutral within its AC range and distribute units evenly across phases; the example uses two units on each phase for six units total. This does not make one unit a three-phase-input converter.

Communication and controls

Parameter	Details
COMM connector	Pin 1 GND_AUX; pin 2 D+; pin 3 D−; pin 4 +5V_AUX. The auxiliary output is 4.5–5.5 V relative to pin 1. Communication signals are isolated and referenced to GND_AUX; do not treat this communication connector as an AC-power terminal.
Communication settings	Modbus RTU: 115200 baud, 8 data bits, 1 stop bit, no parity or flow control. Slave ID is 0xC0 plus the AD1/AD2 address (0–63); 0x00 is broadcast. Minimum request interval 50 ms; maximum response time 12.5 ms; minimum packet margin 12.5 ms. Follow the fitted protocol and mode-specific command definitions.
Address and bus termination	AD1/AD2 set the communication address; use the protocol-specific manual. On CRL, short pins 1 and 3 to enable the built-in termination resistor. Pins 2 and 4 are jumper-storage positions when this unit is not a bus termination.
PAR1/PAR2 connector and pinout	Catalog pinout: HRS DF11-10DP-2DS or equivalent; mating housing HRS DF11-10DS, terminal HRS DF11-**SC or equivalent. Pin 1 +5V_AUX2; 2 GND_AUX2; 3 REMOTE ON_OFF; 4 DC-OK; 5 DA; 6 NC; 7 DB; 8 T-ALARM; 9 C/D Control; 10 Fault. DA/DB are parallel-control data lines.
Remote ON/OFF	Link REMOTE ON_OFF to +5V_AUX2 for power ON; leave open for power OFF. The auxiliary supply is 4.5–5.5 V relative to GND_AUX2, for remote ON/OFF only; the remote input maximum is 5.5 V. Control signals are isolated and referenced to GND_AUX2. The user manual contains inconsistent remote-control pin numbers; confirm the supplied connector drawing before wiring.
DC-OK and temperature alarm	Pin 4: high 4.5–5.5 V when output is below the 80% ±5% threshold; low −0.5 to +0.5 V when output is above that threshold. DC-OK is not supported in Charger/Grid modes. Pin 8: high 4.5–5.5 V for an internal temperature alarm or fan failure; low −0.5 to +0.5 V under normal temperature/fan conditions. These signals are outputs only, maximum sourcing current 4 mA.
Fault and charge/discharge signals	Pin 10 Fault: high 4.5–5.5 V for AC ≤165 Vrms, OLP, SCP, OTP, OVP, AC failure, fan lock or islanding; low −0.5 to +0.5 V when AC ≥175 Vrms and operation is normal. Output only, maximum source 4 mA. Pin 9 C/D Control is for battery mode only: 4.5–5.5 V selects charging; 0–0.5 V selects discharging.
Status indication	BIC mode: steady green = AC-to-DC; flashing green = DC-to-AC. Grid/Charger modes: steady green = negative grid power or float/full battery; flashing green = DC-to-AC; flashing orange = charging. Steady orange indicates startup standby; red indicates abnormal status.
Protection blink codes	Red blink/pause counts: 1 overload; 2 overvoltage; 3 over/undertemperature; 4 fan failure; 5 other faults, including short circuit, AC undervoltage and EEPROM error. Continuous red blinking indicates a high-ambient-temperature notification; this warning alone does not shut down the device. Reduce ambient temperature or load. The blink-code list above follows the product catalog; use the supplied unit’s diagnostic instructions when identifying a fault.
Settings verification	Read back the voltage, current and mode settings before connecting batteries or loads. Enable output only after confirming that the settings match the application.

Mechanical installation and accessories

Parameter	Details
Dimensions and mounting	460 × 211 × 83.5 mm (L × W × H), case 223; mechanical-drawing tolerance ±0.5 mm. Mounting points use M4 screws with maximum 5 mm penetration and recommended 7–10 kgf·cm mounting torque. Follow the illustrated airflow direction and leave the fans unobstructed.
Power connections	AC terminal 1 = FG, 2 = AC/N, 3 = AC/L; maximum terminal mounting torque 18 kgf·cm. Connect DC conductors to the marked +V and −V busbars. Confirm polarity and protective grounding before energizing.
Standard accessories	One remote-control shorting wire per unit: green UL1007 26 AWG, pin 1–3 short, 15 mm illustrated loop. One parallel-function mating wire per unit: UL1061 28 AWG, 250 mm overall. The catalog lists HRS DF11-10DP-2DS or equivalent connector assemblies.
Parallel cable conductors	Pins 1–10 respectively: black, brown, red, orange, yellow, green, blue, purple, gray, white. Follow the PAR wiring diagram; the cable’s color list does not replace the connector pin assignment.
Terminal protectors	Standard set: one red and one black protector plus four M3 × 4 screws. Protector drawing: 52 × 40.8 × 39.8 mm. Fit to the marked DC terminals as illustrated.
Weight reference	Catalog packing reference per unit: 12 kg (12000 g). This is not a separately stated measured net weight.

Standards and measurement conditions

Parameter	Details
Safety standards	Catalog approvals: CB IEC 62368-1 / IEC 62477-1; UL 62368-1 and CAN/CSA C22.2 No.62368-1; TUV BS EN/EN 62368-1, BS EN/EN 62477-1 and BS EN/EN 50549-1; EAC TP TC 004.
Overvoltage category and altitude	OVC III under IEC/EN/UL 62368-1 and IEC/EN 62477-1, altitude up to 2000 m.
Insulation tests	Input–output 6 kVDC; input–FG 4 kVDC; output–FG 4 kVDC. Insulation resistance 100 MΩ at 500 VDC, 25°C and 70% RH for those three paths. The catalog requires screw A to be temporarily removed for these tests and reinstalled afterward.
EMC emissions	BS EN/EN 55032 and BS EN/EN 61000-6-4. Conducted/radiated emissions: EN 55032 (CISPR 32), Class A. Harmonic current: EN 61000-3-12, Class A. Voltage flicker: EN 61000-3-11.
EMC immunity	BS EN/EN 55035 and EN 61000-6-2. ESD EN 61000-4-2: 8 kV air/4 kV contact. Radiated field, EFT/burst and conducted immunity: EN 61000-4-3/-4/-6 Level 3. Surge EN 61000-4-5: 2 kV line–line, 4 kV line–earth. Magnetic field EN 61000-4-8 Level 4. EN 61000-4-34: >95% dip for 0.5 periods, 30% dip for 25 periods, and >95% interruption for 250 periods.
System verification and RCM	Final equipment must be rechecked for EMC compliance. The catalog states that RCM is applied voluntarily under AS/NZS 4417.1 with the relevant IEC/AS/NZS standards or AS/NZS 3820, as applicable.
Reliability and test conditions	MTBF minimum 209.4k hours, Telcordia SR-332; minimum 17.8k hours, MIL-HDBK-217F at 25°C. Unless otherwise specified, catalog parameters are measured at 230 VAC, rated load and 25°C ambient.

Installation and commissioning

Parameter	Details
Installation environment and earth	Use a sufficiently strong flat surface or mounting rack. Keep the front and rear airflow unobstructed with at least 15 cm clearance. Keep the unit away from moisture, water and direct sunlight, and do not place objects on it. Connect frame ground to protective earth; have faults examined by a qualified technician.
Mounting and AC terminals	The mounting drawing specifies M4 screws with no more than 5 mm penetration and 7–10 kgf·cm tightening torque. The AC terminals are FG, N and L; the manual recommends 10 AWG cable and 18 kgf·cm terminal torque. Confirm the supplied terminal hardware and follow its installation drawing before fitting lugs or screws.
DC wiring and protection	Use short DC cables; the manual recommends less than 1 m. Select conductors for this model’s maximum current in both directions and the applicable installation requirements. Check polarity and prevent short circuits. A fuse or circuit breaker at the positive battery terminal is recommended.
AC circuit and three-phase systems	The unit has single-phase AC input/output. For a three-phase, four-wire installation, connect each unit between its assigned phase and neutral and distribute units appropriately across the phases. The manual recommends a separate AC breaker from the load equipment.
Restart interval	Allow at least 10 seconds before turning the unit on again to let the inrush-limiting circuit cool down.
Remote enable	A dry-contact connection between REMOTE_ON_OFF and +5V_AUX2 enables operation; an open contact disables it. The remote-control input maximum is 5.5 V. Confirm these signal terminals against the current interface definition and the supplied hardware before wiring.
Parallel operating limit	Current sharing is available only in BIC Mode, with up to six units. Use short, adequately sized DC wiring and the specified PAR/PRL connections. Maximum total current is rated current per unit × number of units × 0.95; current balance is not guaranteed below 5% of the combined rated current.
Grid commissioning	Country-profile settings do not establish certification for every listed grid code. Among the grid-code profiles discussed, the cited manual lists EN50549-1 as certified. Grid-connection parameters may be modified only by authorized DSO personnel; confirm the local grid requirements before commissioning. Consult the DSO or power company before a factory reset of a grid-connected unit.
Battery charging modes	Select and verify voltage, current and charging-curve settings for the connected battery before operation. Two-stage charging uses CC/CV; three-stage charging adds float charging. Grid-tied Mode and Charger Mode do not operate simultaneously, and Grid-tied Mode alone does not automatically charge a low battery.
Communication setup	This MOD version uses Modbus RTU: 115200 baud, 8 data bits, 1 stop bit, no parity and no flow control. Give each unit a unique address. The manual specifies a minimum 50 ms request period, a maximum 12.5 ms response time and a minimum 12.5 ms packet margin.
Mode selection and communications	Use a unique AD1/AD2 address for each unit. The 64 communication addresses are separate from the six-unit parallel-power limit. Switching between BIC mode and Grid-tied mode requires a device reboot.
Battery-direction control	C/D control is inactive in automatic-detect mode. Configure bidirectional battery mode and its voltage/current targets before using digital or analog direction control. For charging, the charge-voltage target must exceed the battery voltage; for discharging, the discharge-voltage target must be below it. Incorrect targets can cause reverse power flow limited to 2% of rated current.
Regional grid settings	The published AC range remains subject to the configured regional grid limits. Confirm the site settings before operation; for example, the manual describes AC overvoltage shutdown if a 230 VAC system rises to 277 VAC. Grid-tied settings and changes require the applicable grid-company or DSO approval and qualified personnel.