Loop Testers

Guarantee safety and protection against faulty circuits and potential fire hazards with Cromwell's selection of earth loop testers. Choose from entry-level testing machines to advanced models, all of which provide accurate and efficient testing for your electrical equipment. Here at Cromwell, we have a range of earth loop testers supplied by companies such as Megger© to assure superior quality and invaluable expertise of the electrical industry.

Why loop testers?

Earth loop testers are used to measure earth fault loop impedance and pick up prospective fault currents as well as determine if the equipment will have sufficient current flow to power the circuit breaker and protect potentially faulty loops. Hence, purchasing earth loop testers that ensure excellent quality as well as accuracy is crucial in maintaining safe and long-lasting electrical equipment.

Loop tester types

There is a huge selection of earth loop testers that suit the needs of different professionals and electricians as well as better fit the needs of the electrical job in hand. At Cromwell we offer an extensive range, from basic loop testers that guarantee a no-trip application and accurate readings, to advanced models that are capable of 2, 3 and 4 wire earth loop measurements at incredible speeds.

FAQs

What sort of earth loop tester is right for me?

Dependant on the voltage of the equipment being tested as well as the speed desired and number of applications being tested will reflect whether you need an entry-level tester or something more advanced. Check out our product descriptions and specific tester specifications to help make the right purchase for your electrical needs.

What happens if earth fault loop impedance is too high?

The higher the impedance, the lower the fault current will be, consequently it will therefore take longer for the circuit protection to operate.

What happens if earth fault loop impedance is too low?

It is possible that the earth fault current can be too low to be detected, and the fault current will then continue to travel around the main circuit causing a short circuit and potential fire risks. That is why it is important to loop test and check for possible faults.