MCCBs contain a number of moving parts that are working in close coordination. They require periodic inspection and maintenance to ensure that they operate reliably when required. Contact timings, contact bounce, non-simultaneity of contacts, current and voltage characteristics, static contact resistance, insulation tests, endurance tests, etc. are some of the tests performed on MCCBs.
Crest manufactures a full range of MCCB testing products for OEMs for ensuring the quality of the product before delivery and for end users to ensure optimum performance of their assets.