
DCDRLB DC Load Banks (incl. High Voltage DRLB)
DC Load Banks ZENITHSUN

Resistive DC load banks DRLB for testing and maintenance of DC power sources, switchgear and equipment burn-in: 3 kW – 5 MW, 1 V – 10 kV DC, current 0.1–15,000 A. Built with high-power wirewound, aluminum housed, plate or stainless steel resistors; load is applied in steps with a fine adjustment handle. The panel carries ammeter, voltmeter, ohmmeter and temperature meter, with RS232/RS485 for PC control. Examples include 610 A / 53 V and 200 kW / 10 kV; high-voltage DRLB units for 1–150 kV are air- or transformer-oil-cooled.
Specifications
- Power range
- 3 kW – 5 MW
- Voltage
- 1 V – 10 kV DC
- Current range
- 0.1–15,000 A
- High-voltage version
- 1–200 kW; 1–150 kV; 22 kΩ – 27 MΩ; air or oil cooling
- Control
- step switches, fine adjustment handle; RS232/RS485 for PC
- Metering
- current, voltage, resistance, temperature
- Protection
- short circuit, over-current, over-voltage, over-temperature, fan failure, audible and visual alarm
- Cooling and enclosure
- fans or water; IP20–IP67; ambient −10…+55 °C
Applications
- EV charging station testing
- Battery discharge testing
- Burn-in of telecom equipment
- Testing of UPS, DC/DC converters and power supplies
- Testing of high-voltage supplies and transformers (DRLB up to 150 kV)
- Testing of DC circuit breakers and contactors
We will select the right size for your task and prepare a quotation under a direct SDS contract.







