N35500
Bidirectional DC Source 42 kW
Bidirectional 42 kW DC source (3U) with regenerative load for battery, PV and automotive tests.
The N35500 series is a high-performance bidirectional programmable DC power supply combining a DC source and regenerative load within one system. Delivering up to 42 kW in only 3U, with voltage ranges from 0 – 2250 V and high power density, the series is designed for demanding R&D, laboratory, and production testing environments. Thanks to its bidirectional architecture, the unit can both source and absorb power, feeding energy back to the grid with up to 93 % regenerative efficiency. Seamless switching between source and load operation prevents overshoot and enables realistic dynamic testing for batteries, DC/DC converters, and energy systems. The N35500 supports CC/CV/CP/CR operating modes, CC/CV priority control, fast dynamic response (≤5 ms), battery simulation, PV array simulation, and sequence testing. This makes it ideal for complex testing scenarios including automotive, fuel cell, photovoltaic, energy storage, and ATE applications. For higher power requirements, the series supports master/master parallel operation up to MW level, allowing multiple units to be combined into scalable high-power test systems with centralized control. Standard interfaces such as LAN, RS232, RS485, and CAN, together with SCPI, Modbus-RTU, and CANopen protocol support, ensure easy integration into automated test benches and industrial environments.
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Description
N35510-100-300 Bidirectional DC source with regenerative load, 10 kW, ±100 V, ±300 A, 3U, M/S parallel scalable
|
Current [A]
300
|
Power [P]
10000
|
Voltage [V]
100
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35514-360-80 Bidirectional DC source with regenerative load, 14 kW, ±360 V, ±80 A, 3U, M/S parallel scalable
|
Current [A]
80
|
Power [P]
14000
|
Voltage [V]
360
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35514-500-65 Bidirectional DC source with regenerative load, 14 kW, ±500 V, ±65 A, 3U, M/S parallel scalable
|
Current [A]
65
|
Power [P]
14000
|
Voltage [V]
500
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35514-750-65 Bidirectional DC source with regenerative load, 14 kW, ±750 V, ±65 A, 3U, M/S parallel scalable
|
Current [A]
65
|
Power [P]
14000
|
Voltage [V]
750
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35520-100-600 Bidirectional DC source with regenerative load, 20 kW, ±100 V, ±600 A, 3U, M/S parallel scalable
|
Current [A]
600
|
Power [P]
20000
|
Voltage [V]
100
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35522-500-130 Bidirectional DC source with regenerative load, 22 kW, ±500 V, ±130 A, 3U, M/S parallel scalable
|
Current [A]
130
|
Power [P]
22000
|
Voltage [V]
500
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35522-750-130 Bidirectional DC source with regenerative load, 22 kW, ±750 V, ±130 A, 3U, M/S parallel scalable
|
Current [A]
130
|
Power [P]
22000
|
Voltage [V]
750
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35522-1000-80 Bidirectional DC source with regenerative load, 22 kW, ±1000 V, ±80 A, 3U, M/S parallel scalable
|
Current [A]
80
|
Power [P]
22000
|
Voltage [V]
1000
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35522-1500-60 Bidirectional DC source with regenerative load, 22 kW, ±1500 V, ±60 A, 3U, M/S parallel scalable
|
Current [A]
60
|
Power [P]
22000
|
Voltage [V]
1500
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35522-2250-60 Bidirectional DC source with regenerative load, 22 kW, ±2250 V, ±60 A, 3U, M/S parallel scalable
|
Current [A]
60
|
Power [P]
22000
|
Voltage [V]
2250
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35528-1000-65 Bidirectional DC source with regenerative load, 28 kW, ±1000 V, ±65 A, 3U, M/S parallel scalable
|
Current [A]
65
|
Power [P]
28000
|
Voltage [V]
1000
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35530-100-900 Bidirectional DC source with regenerative load, 30 kW, ±100 V, ±900 A, 3U, M/S parallel scalable
|
Current [A]
900
|
Power [P]
30000
|
Voltage [V]
100
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35532-360-240 Bidirectional DC source with regenerative load, 32 kW, ±360 V, ±240 A, 3U, M/S parallel scalable
|
Current [A]
240
|
Power [P]
32000
|
Voltage [V]
360
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35532-500-180 Bidirectional DC source with regenerative load, 32 kW, ±500 V, ±180 A, 3U, M/S parallel scalable
|
Current [A]
180
|
Power [P]
32000
|
Voltage [V]
500
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35532-750-180 Bidirectional DC source with regenerative load, 32 kW, ±750 V, ±180 A, 3U, M/S parallel scalable
|
Current [A]
180
|
Power [P]
32000
|
Voltage [V]
750
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35532-1000-80 Bidirectional DC source with regenerative load, 32 kW, ±1000 V, ±80 A, 3U, M/S parallel scalable
|
Current [A]
80
|
Power [P]
32000
|
Voltage [V]
1000
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35532-1500-60 Bidirectional DC source with regenerative load, 32 kW, ±1500 V, ±60 A, 3U, M/S parallel scalable
|
Current [A]
60
|
Power [P]
32000
|
Voltage [V]
1500
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35532-2250-60 Bidirectional DC source with regenerative load, 32 kW, ±2250 V, ±60 A, 3U, M/S parallel scalable
|
Current [A]
60
|
Power [P]
32000
|
Voltage [V]
2250
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35542-360-240 Bidirectional DC source with regenerative load, 42 kW, ±360 V, ±240 A, 3U, M/S parallel scalable
|
Current [A]
240
|
Power [P]
42000
|
Voltage [V]
360
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35542-500-195 Bidirectional DC source with regenerative load, 42 kW, ±500 V, ±195 A, 3U, M/S parallel scalable
|
Current [A]
195
|
Power [P]
42000
|
Voltage [V]
500
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35542-750-195 Bidirectional DC source with regenerative load, 42 kW, ±750 V, ±195 A, 3U, M/S parallel scalable
|
Current [A]
195
|
Power [P]
42000
|
Voltage [V]
750
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35542-1000-80 Bidirectional DC source with regenerative load, 42 kW, ±1000 V, ±80 A, 3U, M/S parallel scalable
|
Current [A]
80
|
Power [P]
42000
|
Voltage [V]
1000
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35542-1500-65 Bidirectional DC source with regenerative load, 42 kW, ±1500 V, ±65 A, 3U, M/S parallel scalable
|
Current [A]
65
|
Power [P]
42000
|
Voltage [V]
1500
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
|
Description
N35542-2250-65 Bidirectional DC source with regenerative load, 42 kW, ±2250 V, ±65 A, 3U, M/S parallel scalable
|
Current [A]
65
|
Power [P]
42000
|
Voltage [V]
2250
|
Technical Data
Height
30
27
24
21
15
12
9
6
3
max. Current (± A)
max. power (± W)
max. voltage (V)
Product category
DC Bidirectional
DC Electronic Load
DC Power Supply
Source + Load
Source + Load
Type of DC Load
Regenerative
Load + Source
Type of DC source
Bidirectional
Source + Sink
N35500 Series: Programmable Bidirectional DC Power Supply up to 42kW for Highly Efficient Test Bench Applications
In modern industrial research and production environments, optimizing laboratory space and energy efficiency is a critical success factor. The N35500 series integrates a highly precise DC power source and a regenerative electronic load into one compact system.
With a power density of 42kW in only 3U rack height, test capacity can be significantly expanded without requiring additional infrastructure.
By feeding absorbed energy back into the local grid, the system also significantly reduces operating costs and cooling requirements.
Key Advantages
Typical Applications
The N35500 series is optimized for industrial sectors where high power and bidirectional energy flow are process-critical.
Realistic charging and discharging cycles for lithium-ion batteries, lead batteries, and supercapacitors.
Simulation of electrical battery behavior for battery management system development.
Testing of efficiency, load transient behavior, and control stability.
Simulation of battery or DC bus conditions for realistic charging scenarios.
PV I-V curve simulation enables MPPT and efficiency testing.
Simulation of charge and discharge processes for large battery storage systems.
Simulation of grid and battery conditions for stability, switching behavior, and efficiency analysis.
Dynamic voltage and current profiles for testing power electronic drive components.
Automated integration into production and test environments via LAN, CAN, or serial interfaces.
Simulation of electrical loads for characterization of fuel cells and related power electronics.
Power supply and load profile control for server, telecom, and infrastructure power systems.
Programmable profiles and high power density for realistic testing of aviation and drive electronics.
Technical Core Data
Integration and Automation
For automated test equipment, interfaces such as LAN, RS232, RS485, and CAN are available. Supported protocols include SCPI, Modbus-RTU, and CANopen.
Optional fiber interfaces for master-slave parallel operation as well as analog PROG interfaces can also be integrated.
Strategic Added Value
By combining a DC power source and a regenerative load, the N35500 series significantly reduces hardware footprint while increasing energy efficiency in test environments.
High power density, precise control, and flexible automation integration make the system a future-proof platform for battery, energy storage, and power electronics testing.
Consulting and Contact
Are you unsure whether this product is the optimal solution for your application? We are happy to support you in selecting the right solution for your requirements – from single applications to complete system integration. Contact us easily via live chat, contact form, email, or phone – we provide personal and practical consultation tailored to your needs. Depending on availability, we can also provide you with a free demo unit for evaluation in your test environment, allowing you to test the system directly under real operating conditions.
