Loop Impedance Testers

What is loop testing?
Loop testing is a quick, convenient and highly specific method of evaluating an electrical circuit for its ability to engage protective devices (circuit breakers, fuses, Ground-fault circuit interrupter).
There are 5 test methods:
• two-wire high-current
• two-wire no-trip with dc injection
• three-wire no-trip
• two-wire no-trip
• four-wire grid impedance testing

The main reason for earth loop impedance testing, is to verify that if a fault occurs in an electrical installation, sufficient current will flow to operate the fuse or circuit breaker protecting the faulty circuit within a predetermined time. The objective is to make sure that the circuit is disconnected fast enough to prevent overheating and possibly a fire.

...
Read more Read less

Filters

Viewing 1 - 3 of 3 products
Results per page
Description Price Loop Impedance Test Type Calibrated Maximum Voltage Measurement Best Loop Test Accuracy Resolution PSC Display Non-Trip Loop Test Safety Category Battery Type Battery Life Power Source Dimensions Weight Height
RS Stock No. 123-2349
BrandRS PRO
£199.90
Each
Units
3 Wire UKAS - ±2% 0.01 Ω Yes - - - - Mains 180 x 130 x 70mm 800g 70mm
RS Stock No. 123-2348
BrandRS PRO
£179.90
Each
Units
3 Wire RSCAL - ±2% 0.01 Ω Yes - - - - Mains 180 x 130 x 70mm 800g 70mm
RS Stock No. 123-2239
BrandRS PRO
£130.90
Each
Units
3 Wire - - ±2% 0.01 Ω Yes - - - - Mains 180 x 130 x 70mm 800g 70mm