Control matched to the DUT
CC and CV priority adapt startup behaviour to current-sensitive or voltage-sensitive DUTs; load operation supports CC, CV, CP and CR.
N35500 – Bidirectional DC Power Supply up to 42 kW
For battery, PV and automotive testing with programmable source and load operation and energy regeneration.
The N35500 combines a programmable DC source and a regenerative electronic load in one instrument. Its wide-range operating characteristic covers different voltage and current requirements, while up to 42 kW in 3U enables compact test setups with changing directions of energy flow.
Repeatable test sequences
Sequences, charge and discharge functions, and programmable waveforms reproduce defined profiles for recurring test tasks.
Four communication interfaces
LAN, RS232, RS485 and CAN facilitate integration into laboratory control systems and automated test equipment.
Optional simulation software
NS81000 reproduces battery characteristics; NS91000 adds PV curves and testing of static and dynamic MPPT efficiency.
Personal project consultation
Do you need support selecting the right power supply? Our technical specialists will provide personal advice tailored to your application.
Select the appropriate technical configuration or access product documentation directly.
ART. NO.
Description
Current [A]
Power [P]
Voltage [V]
N35510-100-300
|
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
|
BiDC source with load
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
N35514-360-80
|
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
|
BiDC source with load
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
N35514-500-65
|
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
|
BiDC source with load
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
N35514-750-65
|
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
|
BiDC source with load
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
N35520-100-600
|
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
|
BiDC source with load
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
N35522-500-130
|
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
|
BiDC source with load
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
N35522-750-130
|
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
|
BiDC source with load
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
N35522-1000-80
|
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
|
BiDC source with load
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
N35522-2250-60
|
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
|
BiDC source with load
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
N35528-1000-65
|
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
|
BiDC source with load
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
N35530-100-900
|
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
|
BiDC source with load
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
N35532-360-240
|
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
|
BiDC source with load
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
N35532-500-180
|
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
|
BiDC source with load
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
N35532-750-180
|
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
|
BiDC source with load
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
N35532-1000-80
|
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
|
BiDC source with load
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
N35532-2250-60
|
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
|
BiDC source with load
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
N35542-360-240
|
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
|
BiDC source with load
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
N35542-500-195
|
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
|
BiDC source with load
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
N35542-750-195
|
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
|
BiDC source with load
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
N35542-1000-80
|
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
|
BiDC source with load
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
N35542-2250-65
|
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
|
BiDC source with load
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
N35556-1000-130
|
Description
N35556-1000-130 Bidirectional DC source with regenerative load, 56 kW, ±1000 V, ±130 A, 6U, M/S parallel scalable
|
Current [A]
130
|
Power [P]
56000
|
Voltage [V]
1000
|
BiDC source with load
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
N35584-360-480
|
Description
N35584-360-480 Bidirectional DC source with regenerative load, 84 kW, ±360 V, ±480 A, 6U, M/S parallel scalable
|
Current [A]
480
|
Power [P]
84000
|
Voltage [V]
360
|
BiDC source with load
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
N35584-500-390
|
Description
N35584-500-390 Bidirectional DC source with regenerative load, 84 kW, ±500 V, ±390 A, 6U, M/S parallel scalable
|
Current [A]
390
|
Power [P]
84000
|
Voltage [V]
500
|
BiDC source with load
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 bidirectional DC power supply overview
The N35500 series operates as a DC source and regenerative electronic load in two quadrants. At positive output voltage, it can supply or absorb current and return absorbed energy to the supply grid. Individual instruments cover voltage classes from 100 to 2,250 V and power ratings from 10 to 42 kW. The 100 V variants provide up to ±900 A at 30 kW; the three 1,500 V versions each offer ±80 A at 22, 32 or 42 kW. These limits apply within the respective power envelope. All individual instruments occupy 3U in a 19-inch installation. Local operation through a 6.8-inch colour display, remote control and programmable test sequences support laboratory, development and production testing. Optional simulation software extends battery and photovoltaic testing.
Key benefits
Return absorbed energy
Automatic transitions between source and sink support tests with changing current direction and reduce energy that must be dissipated as heat.
Control startup behaviour
Selecting the control priority helps limit voltage or current overshoot at startup to suit the DUT.
Execute stored profiles
Up to ten sequence files with 1,000 steps each store defined voltage, current and power profiles.
Regulate at the DUT
Four-wire remote sense compensates lead voltage drops up to 2 V, improving voltage control at the DUT terminals.
Operating principle: source and sink
In V/I operation, voltage and current and power limits are set for both directions of energy flow. Control switches between CV, CC and CP according to the operating point. Current and power are positive in source operation and negative when energy is absorbed. Output voltage remains unipolar. Dedicated load operation provides constant current, constant voltage, constant power and constant resistance.
Power envelope and model selection
All models below are individual 3U instruments. Positive values represent source operation; negative current and power values represent sink operation.
| Model | Voltage | Current | Power |
|---|---|---|---|
| N35510-100-300 | 0–100 V | ±300 A | ±10 kW |
| N35520-100-600 | 0–100 V | ±600 A | ±20 kW |
| N35530-100-900 | 0–100 V | ±900 A | ±30 kW |
| N35514-360-80 | 0–360 V | ±80 A | ±14 kW |
| N35522-360-160 | 0–360 V | ±160 A | ±22 kW |
| N35532-360-240 | 0–360 V | ±240 A | ±32 kW |
| N35542-360-240 | 0–360 V | ±240 A | ±42 kW |
| N35514-500-65 | 0–500 V | ±65 A | ±14 kW |
| N35522-500-130 | 0–500 V | ±130 A | ±22 kW |
| N35532-500-180 | 0–500 V | ±180 A | ±32 kW |
| N35542-500-195 | 0–500 V | ±195 A | ±42 kW |
| N35514-750-65 | 0–750 V | ±65 A | ±14 kW |
| N35522-750-130 | 0–750 V | ±130 A | ±22 kW |
| N35532-750-180 | 0–750 V | ±180 A | ±32 kW |
| N35542-750-195 | 0–750 V | ±195 A | ±42 kW |
| N35522-1000-80 | 0–1,000 V | ±80 A | ±22 kW |
| N35528-1000-65 | 0–1,000 V | ±65 A | ±28 kW |
| N35532-1000-80 | 0–1,000 V | ±80 A | ±32 kW |
| N35542-1000-80 | 0–1,000 V | ±80 A | ±42 kW |
| N35522-1500-80 | 0–1,500 V | ±80 A | ±22 kW |
| N35532-1500-80 | 0–1,500 V | ±80 A | ±32 kW |
| N35542-1500-80 | 0–1,500 V | ±80 A | ±42 kW |
| N35522-2250-60 | 0–2,250 V | ±60 A | ±22 kW |
| N35532-2250-60 | 0–2,250 V | ±60 A | ±32 kW |
| N35542-2250-65 | 0–2,250 V | ±65 A | ±42 kW |
The operating point determines capability: P = U × I. For U > 0 within the permitted operating envelope: |I| ≤ min(I-rated, P-rated/U). The N35542-1500-80 provides up to 28 A at 1,500 V; its power rating permits 80 A up to 525 V. Voltage, current and power must therefore be selected together.
Dynamics and accuracy
Dynamics depend on voltage class, load and control settings. The following values apply to the three individual 1,500 V models; other voltage classes have their own specifications.
| Characteristic | Value and condition |
|---|---|
| Voltage rise | ≤2 ms, 10–90%, at no load and full load |
| Voltage fall | ≤10 ms at no load; ≤5 ms at full load, both 90–10% with the output ON |
| Transient recovery | <500 µs for a 10–60% load change and voltage recovery within 0.75% of rated voltage |
| Voltage: setting / readback | Each ≤0.02% + 0.02% F.S. at 23 ±5 °C |
| Current: setting / readback | Each ≤0.1% + 0.1% F.S. at 23 ±5 °C |
F.S. denotes the respective full-scale value. Programmable waveform frequencies do not specify power bandwidth; achievable waveform shape also depends on amplitude and load.
Operating modes and programmable functions
| Function | Operation | Benefit |
|---|---|---|
| V/I and load | CV, CC and CP with separate source/sink limits; load mode also provides CR. | Supply power and apply defined loads. |
| SEQ and Step | Up to 10 SEQ files with 1,000 steps each; Step increases or decreases voltage or current incrementally. | Repeatable sequences and protection-threshold testing. |
| Charge / Discharge | Charging and discharging with adjustable voltage, capacity and time cutoffs; charging also includes a current cutoff. | Test batteries and supercapacitors. |
| RESI | Open-circuit voltage and internal resistance define a simple battery equivalent characteristic. | Reproduce voltage drop under load. |
| Wave / Anywave / Advanced | Time-amplitude profiles, sine, triangle and pulse shapes, and combined waveforms. | Reproduce dynamic supply conditions. |
| Carwave | Prepared vehicle supply profiles for voltage dips, reset, startup and load dump. | Test automotive electronics within instrument and profile limits. |
Typical applications
On-board chargers and DC/DC converters
The DC side is supplied or loaded under controlled conditions. Source/sink operation and optional battery simulation reproduce different operating states.
Batteries and supercapacitors
Charge and discharge functions test real storage devices. Cycling test software combines charge, discharge and rest phases with capacity evaluation.
Photovoltaic inverters
NS91000 defines I-V and P-V characteristics for testing static and dynamic MPPT efficiency.
Automated production testing
Programmable supply, load operation, sequences and remote control support repeatable electrical testing in ATE systems.
Storage converters and UPS
The N35500 supplies or absorbs DC power for testing energy storage components with changing directions of energy flow.
Aerospace and drone electronics
Programmable DC supply and defined load conditions support electrical testing of relevant components.
Interfaces, software and automation
| Component | Configuration | Function |
|---|---|---|
| LAN / RS232 / RS485 / CAN | Standard | Remote control and integration into test automation. |
| SCPI / Modbus-RTU / CANopen | Supported protocols | Select the protocol to match the communication interface in use. |
| PC control software | Software | Parameter configuration, test sequences, data recording and historical measurement data. |
| NS81000 | Optional software | Seven standard battery models and two custom characteristic types. |
| NS91000 | Optional software | PV curves and MPPT testing, including weather, shading and sequence operation. |
| PROG / fibre optics | Configuration-dependent equipment and accessories | External analogue/digital control or communication in parallel systems; specify the required configuration when ordering. |
Scaling and system configurations
Up to ten instruments of the same model and specification can operate in a master-slave system. One master controls the slaves through the fibre-optic connection, with DC outputs connected in parallel. Current and power add together while the voltage range remains unchanged. For remote sense, the master is connected to the compensation point. Ten 42 kW instruments provide up to 420 kW.
The following overview lists the larger system configurations. Each entry gives the model, power, maximum current magnitude and height; every voltage range starts at 0 V. Current and power ratings apply to both directions of energy flow and remain subject to the operating envelope.
| Voltage range | System models: power / current / height |
|---|---|
| 0–360 V | N35584-360-480: 84 kW / 480 A / 6U N355126-360-720: 126 kW / 720 A / 22U N355168-360-960: 168 kW / 960 A / 22U N355210-360-1200: 210 kW / 1,200 A / 32U N355252-360-1440: 252 kW / 1,440 A / 32U N355294-360-1680: 294 kW / 1,680 A / 32U N355336-360-1920: 336 kW / 1,920 A / 42U N355378-360-2160: 378 kW / 2,160 A / 42U N355420-360-2400: 420 kW / 2,400 A / 42U |
| 0–500 V | N35584-500-390: 84 kW / 390 A / 6U N355126-500-585: 126 kW / 585 A / 22U N355168-500-780: 168 kW / 780 A / 22U N355210-500-975: 210 kW / 975 A / 32U N355252-500-1170: 252 kW / 1,170 A / 32U N355294-500-1365: 294 kW / 1,365 A / 32U N355336-500-1560: 336 kW / 1,560 A / 42U N355378-500-1755: 378 kW / 1,755 A / 42U N355420-500-1950: 420 kW / 1,950 A / 42U |
| 0–750 V | N35584-750-390: 84 kW / 390 A / 6U N355126-750-585: 126 kW / 585 A / 22U N355168-750-780: 168 kW / 780 A / 22U N355210-750-975: 210 kW / 975 A / 32U N355252-750-1170: 252 kW / 1,170 A / 32U N355294-750-1365: 294 kW / 1,365 A / 32U N355336-750-1560: 336 kW / 1,560 A / 42U N355378-750-1755: 378 kW / 1,755 A / 42U N355420-750-1950: 420 kW / 1,950 A / 42U |
| 0–1,000 V | N35556-1000-130: 56 kW / 130 A / 6U N35584-1000-195: 84 kW / 195 A / 22U N355112-1000-260: 112 kW / 260 A / 22U N355140-1000-325: 140 kW / 325 A / 32U N355168-1000-390: 168 kW / 390 A / 32U N355196-1000-455: 196 kW / 455 A / 32U N355224-1000-520: 224 kW / 520 A / 42U N355252-1000-585: 252 kW / 585 A / 42U N355280-1000-650: 280 kW / 650 A / 42U |
| 0–1,500 V | N35584-1500-160: 84 kW / 160 A / 6U N355126-1500-240: 126 kW / 240 A / 22U N355168-1500-320: 168 kW / 320 A / 22U N355210-1500-400: 210 kW / 400 A / 32U N355252-1500-480: 252 kW / 480 A / 32U N355294-1500-560: 294 kW / 560 A / 32U N355336-1500-640: 336 kW / 640 A / 42U N355378-1500-720: 378 kW / 720 A / 42U N355420-1500-800: 420 kW / 800 A / 42U |
| 0–2,250 V | N35584-2250-130: 84 kW / 130 A / 6U N355126-2250-195: 126 kW / 195 A / 22U N355168-2250-260: 168 kW / 260 A / 22U N355210-2250-325: 210 kW / 325 A / 32U N355252-2250-390: 252 kW / 390 A / 32U N355294-2250-455: 294 kW / 455 A / 32U N355336-2250-520: 336 kW / 520 A / 42U N355378-2250-585: 378 kW / 585 A / 42U N355420-2250-650: 420 kW / 650 A / 42U |
Installation and infrastructure
| Item | Requirements |
|---|---|
| Mains connection | Three-phase 380 V AC connection, 47–63 Hz; observe the permitted input voltage range marked on the instrument. |
| Individual instrument | 19-inch format, 3U; depth 755 mm including the output cover. |
| Environment | 0–50 °C; power derating above 35 °C. Provide unobstructed cooling airflow. |
| Connections and accessories | Size DC cables for voltage, current and voltage drop. Select sense leads, parallel accessories and rack mounting to suit the setup. |
Protection functions
OVP, OCP and OPP monitor overvoltage, overcurrent and overpower. UVP and UCP add undervoltage and undercurrent monitoring with adjustable arming and delay times. When protection trips, the output switches off and an alarm is displayed. Overtemperature protection and module fault detection are also provided. Set thresholds and delays to suit the DUT and test sequence.
N35500 frequently asked questions
Can 1,500 V and 80 A be delivered simultaneously?
The 42 kW rating limits the N35542-1500-80 to 28 A at 1,500 V. At 80 A, its power rating limits voltage to 525 V.
Which 1,500 V models are available?
N35522-1500-80, N35532-1500-80 and N35542-1500-80 each provide ±80 A at 22, 32 and 42 kW respectively.
Can the instrument absorb energy?
Yes. The integrated regenerative load absorbs DC energy and returns it to the supply grid.
Can different models be connected in parallel?
Master-slave operation requires identical models and specifications and supports up to ten instruments.
How does RESI differ from NS81000?
RESI reproduces open-circuit voltage and internal resistance. Optional NS81000 software adds battery model libraries and custom characteristics.
Can the N35500 perform cycling tests on real batteries?
Yes. Charge and discharge functions test real batteries; cycling test software adds charge, discharge and rest phases and capacity evaluation.
Can it test a PV inverter’s MPPT efficiency?
Yes, with optional NS91000 software. It generates PV characteristics and supports static and dynamic MPPT testing.
How does the N35500 support DC/DC converter testing?
It provides an adjustable DC supply or regenerative load. CV priority helps reduce voltage overshoot at startup.
Technical consultation and project enquiry
To select the right configuration, we need the voltage range, current and power at the actual operating point, the required direction of energy flow, and your dynamics, interface and simulation requirements. ET System supports instrument selection and parallel-system configuration.
