LT300 series

High current loop tester

  • CAT IV 300 V applications
  • High current loop tester
  • Single and three-phase testing
  • 16 Hz to 400 Hz operation
  • Two-wire lead set or mains plug leads

Introducing a new loop tester for CAT IV applications, the LT300 offers high current loop testing over a wide range of frequencies and supply voltages with simple, fast, two-wire operation.

Supply frequency is indicated upon connection to the supply. This will automatically set to the measured supply frequency either 16 Hz, 50/60 Hz or 400 Hz. Testing will commence automatically.

Three models are available:

  • LT300-EN-00 - with red/green leads
  • LT300-EN-BS - with BS1363 mains plug lead
  • LT300-EN-FS - with fused red/green leads

The high current loop test provides fast accurate and stable results with a resolution to 0.01 Ω on the 20 Ω range.

All models have a large clear display that aids visibility in poor conditions and are housed in a rubber armoured case with a built-in cover to protect the display when not in use. The IP54 weatherproof rating provides excellent protection in adverse conditions. The instruments are supplied with either a two wire (red/green) lead set, or a mains plug test lead for access to wall sockets, a Certificate of Test, and a hard carry case.

Technical Documents
Technical guide
Loop testing techniques
Technical guide
Testing on 110 V systems
Technical guide
Use of fused test leads