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750ADM MK4 Primary Current Injection Test Set

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  • Primary current injection up to 750A
  • 4V output
  • 16V 40A output for secondary injection
  • True RMS digital metering with single cycle capture
  • Data storage to USB memory key including waveform & harmonics
  • Multi-function timing system
  • Large back-lit liquid crystal display
  • Thermal and over-current protection
  • Automatic switch-off at end of test
  • Compact and portable
  • Automatic mains voltage selection
  • Clear and simple user interface
  • Available in Metal or Pelican case


The 750ADM MK4 Primary Current Injection Test Set is a versatile and powerful tool. It offers comprehensive testing capabilities with its dual outputs and a range from milliamps to 750A. Additionally, the 40A output provides up to 16V, making it perfect for high impedance trips.

You have the flexibility to independently set the meter’s scale and trip level using its four true RMS metering ranges. The test set captures data in under 20ms, ensuring precise measurements. The industry-standard connectors used in the 750ADM MK4 ensure convenience, reliability, and safety.

This test set features robust protection mechanisms, including electronic overcurrent and thermal trips. Its flexible timing system enables accurate measurements of trip, reset, and reclose times without compromising ease of use. The two contact inputs support both normally open and normally closed contacts, accommodating a variety of triggering options.

Efficiently test circuit breakers, relays, auto-reclosers, MCBs, and CT ratio using the 750ADM MK4 Primary Current Injection Test Set. Furthermore, this advanced test set empowers is available in either metal casing or pelican transport case.

Our partners, such as AcutestAlpha ElectronicsCuthbertson LairdNorwich Instrument Services, and PASS Ltd, offer the 750ADM Mk4 in the United Kingdom. Additionally, if you are located outside Great Britain, you can conveniently order the product through our worldwide distribution network.

750ADM Mk4 Operating Manual


750ADM Mk4 Datasheet


Additional information

Metal Case Weight

23.5 kg

Metal Case Dimensions

380 x 314 x 221 mm

Pelican Case Weight

27.4 kg

Pelican Case Dimensions

560 × 456 × 265 mm

Supplied Accessories

User manual
Calibration certificate
Mains lead
Spare Fuses


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