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Power Supplies

N351 Bidirectional Programmable DC Power Supply

1U Bidirectional DC Source and Regenerative Load

N351 combines programmable DC source and load operation in a 1U chassis. Six models provide 40 V or 80 V ratings, 2.5 / 5 / 7.5 kW power and model-dependent current from ±55 A to ±300 A.

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N351 Bidirectional Programmable DC Power Supply
Power range
2.5 kW / 5 kW / 7.5 kW
Voltage range
40 V / 80 V
Current range
±55 A to ±300 A by model
Operating modes
CC, CV, CR, CP

Overview

N351 combines programmable DC source and load operation in a 1U chassis. Six models provide 40 V or 80 V ratings, 2.5 / 5 / 7.5 kW power and model-dependent current from ±55 A to ±300 A.

Additional product details

The N351’s 1U chassis combines high power density with standard LAN, RS232, RS485, and CAN interfaces for laboratory and ATE integration.

Key Capabilities & Applications

Bidirectional energy flow

Source or absorb DUT current with CC, CV, CR and CP modes. Absorbed energy can return to the grid with recovery efficiency up to 90%.

Programmable test profiles

CC/CV priority, adjustable slew rate, sequences and charge/discharge tests support battery and power-converter workflows.

Remote control and simulation

LAN, RS232, RS485 and CAN support SCPI, Modbus RTU and CANopen. NS91000 photovoltaic and NS81000 battery simulation software are optional.

All capabilities and operating conditions

Bidirectional source and load

Dual-quadrant operation provides smooth transition between sourcing and absorbing current.

Power density

Up to 7500 W is integrated in a 1U chassis for compact systems.

Simulation software

PV matrix I-V curve simulation and battery simulation software options support renewable-energy and battery workflows.

Control modes

CC, CV, CR, CP, CC/CV priority, adjustable slew rate, sequence, and charge/discharge tests are supported.

Common applications

  • Battery charge/discharge cycling and simulation
  • Vehicle inverters, circulation pumps, automotive electronics, and DC-DC modules
  • PV inverter and solar-cell matrix simulation
  • Outdoor storage, UPS, and battery-driven equipment tests

Technical Specifications

ParameterSpecification
Core ratings and functions
Power range2.5 kW / 5 kW / 7.5 kW
Voltage range40 V / 80 V
Current range±55 A to ±300 A by model
Operating modesCC, CV, CR, CP; source and load operation
Energy recovery efficiencyUp to 90%
Power densityUp to 7500 W in 1U
Core ratings and functions
Standard interfacesLAN, RS232, RS485, CAN
ProtocolsModbus-RTU, CANopen, SCPI
View all 16 specifications
ParameterSpecification
Core ratings and functions
Display3.2-inch HD color screen
Model selection
N35125-40-10040 V, ±100 A, 2500 W
N35150-40-20040 V, ±200 A, 5000 W
N35175-40-30040 V, ±300 A, 7500 W
N35125-80-5580 V, ±55 A, 2500 W
N35150-80-11080 V, ±110 A, 5000 W
N35175-80-17080 V, ±170 A, 7500 W
Output priorityCC / CV priority selection

Specifications are subject to change without notice.

Models, Configuration & Compatibility

N351

Model selection details

Choose the N351 voltage class from the DUT operating envelope, then select current and power with margin for startup, charge/discharge, transient, and regenerative states.

Control interfaces and software

LAN, RS232, RS485 and CAN interfaces support Modbus RTU, CANopen and SCPI. Optional NS91000 photovoltaic software supports I-V/P-V curves and MPPT testing; optional NS81000 battery software supports battery libraries and measured-curve import.

LAN · RS232 · RS485 · CAN · SCPI · Modbus RTU · CANopen

Technical Resources

Download Datasheet

PDF technical specifications

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Selection guidance

Format: Bidirectional DC source/sink

Coverage: 40 V / 80 V voltage; 2.5 kW / 5 kW / 7.5 kW power; ±55 A to ±300 A current by model

Best for: Compact regenerative battery, photovoltaic, and component tests that need programmable source and load operation.

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Information for your quotation

For an N351 quotation, confirm the facility input, grid-regeneration path, protection boundary, cabling, connector rating, remote-control protocol, and acceptance method.