With the critical role of circuit breakers, it is very important to periodically verify that they are performing as designed and intended. Numerous electrical circuits can potentially be compromised if a circuit breaker fails to trip when fault conditions occur. As with any new product, we expect it to work properly right straight out of the box. The unfortunate truth is that this isn't always the case. The same is true about circuit breakers.
This is why their proper operation should be verified as an acceptance test. Additionally, circuit breakers experience environmental, mechanical, electrical and thermal stresses over the course of their service. A well planned preventative maintenance program can help in avoiding unplanned downtime and service interruptions due to what is often an avoidable mis-operation. Additionally, early detection of performance concerns can save on the cost of equipment repair and/or replacement.
One of the best testers on the market today is the Merlin Gerin ME Test Kit Secondary Injection Test Set. This secondary injection test set lets you verify operational characteristics like the long and short time tripping test, as well as instantaneous and ground-fault protection tests. The Merlin Gerin ME Test Kit Secondary Injection Test Set allows you to test various trip devices such as like:
MASTERPACT Trip Units
STR180 to STR58
ST208 to ST418
COMPACT Trip Units
STR25 to STR55
STCM2 to STCM3
ST204 to ST224
ST205 to ST315
COMPACT NS Trip Units
STR22 to STR23
STR43 and STR53
Related electrical test equipment available for rent from Protec:
Wherever the job takes you (and the equipment), with Protec's multiple locations, we always ship from the office closest to your desired drop location (if the electrical test equipment you need is in-stock at that location), and the equipment can be returned to the nearest office.
We always consider ALL shipping options in order to save you the most time and money.
Also, if you happen to be close to one of our many office locations, walk-ins are always welcome!
Rely on the Electrical Test Equipment Rental Experts, we are there when and where you need us.
Editor’s Note: This post was originally published May, 2012 and has been updated freshness, accuracy and comprehensiveness.