| Brand | Gustav Klein |
|---|---|
| Resistance | 1.5 or 2.0 Ohm |
| Energy rating | 500 kWs (2.0 Ohm) or 670 kWs (1.5 Ohm) |
| Max. DUT Voltage | 1000 VDC |
| Cabinet Dimensions | 600x800x2000 or 1200x800x2000 mm |
DCU Discharge Unit
Key Features
- Discharge resistor, thyristor and control unit in one module
- Installed in a PDSB or in its own dedicated cabinet
- Activates automatically when test-object voltage exceeds a set threshold and the I-TS can no longer regulate it
- On normal shutdown, discharge can be routed via mains feedback or via the DCU, or omitted, as configured
- Resistance values of 1.5 Ohm or 2.0 Ohm, for 670 kWs or 500 kWs energy content respectively
- Multiple DCUs can be used in parallel for test objects with higher energy content
| Model | Description |
|---|---|
| CAB-DCU-500-1 | 1x 2.0 Ohm / 500 kWs / 1000 VDC, cabinet 600x800x2000. |
| CAB-DCU-500-2 | 2x 2.0 Ohm / 500 kWs / 1000 VDC, cabinet 600x800x2000. |
| CAB-DCU-500-4 | 4x 2.0 Ohm / 500 kWs / 1000 VDC, cabinet 1200x800x2000. |
| CAB-DCU-670-1 | 1x 1.5 Ohm / 670 kWs / 1000 VDC, cabinet 600x800x2000. |
| CAB-DCU-670-2 | 2x 1.5 Ohm / 670 kWs / 1000 VDC, cabinet 600x800x2000. |
| CAB-DCU-670-4 | 4x 1.5 Ohm / 670 kWs / 1000 VDC, cabinet 1200x800x2000. |
| (M)ITS-PDSB-DCU-500 | 1x 2.0 Ohm / 500 kWs / 1000 VDC, cabinet for installation in PDSB. |
| (M)ITS-PDSB-DCU-670 | 1x 1.5 Ohm / 670 kWs / 1000 VDC, cabinet for installation in PDSB. |
DCU Discharge Unit
The DCU consists of a discharge resistor, a thyristor and a control unit, installed either in a PDSB or in its own cabinet. It activates when the voltage at the test object exceeds a set value and the I-TS can no longer regulate it — for example due to insufficient power, a mains failure, or the DCW being switched off.Who Is the DCU For?
Test engineers whose battery or high-energy test objects need a defined, automatic discharge path when the I-TS system can no longer regulate the test-object voltage — a safety function rather than a routine operating mode.Available Models & Accessories
The DCU is available as a freestanding cabinet (CAB-DCU, 1, 2 or 4 units of 1.5 or 2.0 Ohm) or as a module for installation in a PDSB ((M)ITS-PDSB-DCU, 1.5 or 2.0 Ohm).Automatic protection when the I-TS can't regulate
The DCU triggers on its own when test-object voltage exceeds a set limit, covering insufficient power, mains failure and DCW shutdown without operator action.
Once triggered, it fully discharges the test object
This is a deliberate, non-reversible safety action, so the resistor must be matched to the DUT's energy content and a cooling-off period is needed before reuse.
Fits inside the PDSB or stands alone
(M)ITS-PDSB-DCU variants share a cabinet with the distribution hardware, while CAB-DCU variants are freestanding for setups without a PDSB.
Parallel DCUs handle higher-energy test objects
For a test object beyond a single unit's rating, multiple DCUs can be combined rather than substituting a single oversized unit.
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