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Adjustment Method for trip of Moulded Case Circuit Breaker

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The first method is to use the adjustable plastic case circuit breaker (with adjustable knobs on the cover) directly for the electronic and thermally adjustable MCCB.

The second method: for general thermal magnetic circuit breakers, open the cover, adjust the position of armature, and the instantaneous spring (adjust magnetic release); adjust the fastening screw (adjust thermal release), it is recommended that professionals do it.

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