Purpose

Circuit Breaker Testing Device DTE-6M (High-Current Circuit Breaker Test Device)

The DTE-6M Primary Injection Test Set is a modern high-current circuit breaker test device designed for verifying the performance and time–current characteristics of AC circuit breakers in the extended range of 20 A to 6000 A. This advanced equipment provides precise measurement and recording of both current and operating time of circuit breakers, including high-capacity protective devices used in industrial power systems.

Main Applications

  • Testing of low-voltage and high-capacity circuit breakers (verification of time–current characteristics up to 6 kA).
  • Primary current injection testing and certification of measuring and protective current transformers under high load.
  • Testing and calibration of overcurrent and thermal relays, including devices rated for high operating currents.
  • Fuse testing and verification for industrial power circuits.
  • Use as a controllable AC current source up to 6 kA for low-impedance laboratory and field applications.

Key Features

  • Portable and robust design – suitable for both laboratory environments and on-site high-current testing.
  • Galvanic isolation of the output circuits from the power supply ensures operator safety.
  • Extended current range – one device covers testing of circuit breakers, transformers, relays, and fuses up to 6000 A.
  • Enhanced performance compared to the DTE-3M, making it suitable for demanding industrial applications.

Price on request.
Contact us to buy the DTE-6M Primary Injection Test Set directly from the manufacturer and receive detailed information on delivery and availability.

Technical specifications

*Supply Voltage, V400 ±5%
Supply Network Frequency, Hz50 ±1%
Maximum Voltage on Output Buses, V2,4
Maximum Current on Output Buses (RMS), A6600
Maximum Power Consumption DTE-6M, kVA45
**Range of True RMS measurement and recording of the output current, A, from 10% to 100% of the selected range with a stated measurement error of less than 3%.20 – 6600
Measurement and Registration Range of Output Current Duration, sec, with measurement error less than 1.5%0.01 – 9999
Threshold of Power Transformer Overheat Protection, °C96 ±10%
Overall Dimensions of Control Unit CU-6, mm300×250×135
Overall Dimensions of Current Amplifier Unit BPS-6, mm480×250×320
Overall Dimensions of Transport Cart, mm420×220×780
Mass of Control Unit CU-6, kg, max3.6
Mass of Current Amplifier Unit BPS-6, kg, max54
Mass of Current Sensor CS-6, kg, max3
Mass of Transport Cart, kg, max12
Average Service Life of the Device, years10

* The device can be powered from a voltage of 230V, while the maximum output current = 4,5kA.

** Technical specifications correspond to reduced values for device operation with a single-phase voltage regulator

DTE-6M operating conditions

Environment temperature range-5°C – +35°C
Relative air humidity at +25°C≤85%.
Atmospheric pressure, mm Hg630 — 795

You can see the 3D model of the device at this link

Gallery