Think of tested breakers as an insurance policy for you, your customers and your business. When it comes to installation of circuit breakers your company takes on an enormous liability if you install circuit breakers that are untested. You run the risk of damaging equipment, down time, causing fires, or worse. You can avoid all of this unnecessary risk by ensuring that the breakers you use are tested.
Our used breakers are safe, reliable, will save you time and money. We are the leading new/used breaker dealer in Canada and the only dealer that tests what it sells and backs it up with a test report. The used breakers we sell come with a unique tracking number that corresponds to the test report that is available to you. We don’t go into a "back room" and claim to test your breaker, you are always welcome to observe our testing procedure (so long as you don’t mind rubbing shoulders with our qualified Breaker Technicians) and observe the process first hand.
All testing is performed by our professionally trained Certified Low Voltage Circuit Breaker Technicians who have attended breaker schools in Texas and California. Breakers are first cleaned inside and out then undergo a step by step 36 point visual inspection of the exterior and interior. Next comes the actual breaker testing. Molded case circuit breakers consist of three major components, the insulation, contacts and the trip unit. Three different pieces of equipment are required in order to fully test a breaker and determine that it is safe, reliable and trips according to the manufacturer’s own trip curve.
Insulation Resistance: This test is necessary to verify the condition of the breaker’s insulating materials. Testing is performed using an insulation resistance test set at 1KV. Tests include Line to Load of opened circuit breaker and Phase to Phase and Phase to Ground of closed circuit breaker. All results are recorded in the test report.
Contact Resistance: This test verifies the current path in the breaker. Loose or bad connections, dirty hinge points or contacts and burnt contacts will all show up as a high resistance reading. Testing is performed on each phase individually using a digital low resistance ohmmeter at 10amps, results are measured in milliohms and recorded in the test report.
Overcurrent Trip Test: This test is to verify the time-current characteristics of the breaker. Testing is performed with direct injection to simulate an overload current. We have assembled over 2000 manufacturer’s trip curves and test each breaker to ensure that it trips according to the manufacturer’s own factory specifications.
All of the test equipment we use is calibrated annually by Megger Limited and certificates of calibration are on display in our office at all times.
