Schneider Electric Masterpact MTZ2 / MTZ3 Disjoncteurs et commutateurs répertoriés UL et/ou certifiés ANSI de 800 à 6000 A Mode d'emploi

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Schneider Electric Masterpact MTZ2 / MTZ3 Disjoncteurs et commutateurs répertoriés UL et/ou certifiés ANSI de 800 à 6000 A Mode d'emploi | Fixfr
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User questions

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Michael Y.

How to troubleshoot spring arming and charging indicator issues on a Masterpact NW circuit breaker?

Springs can be armed manually by lowering the arming handle seven times until a click is heard, or automatically if an MCH gear motor is installed. If the springs fail to arm automatically, verify that the supply voltage is at least 85% of the nominal voltage (U > 0.85 Un) and inspect the supply circuit.

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Michael Y.

How to charge the springs on a Masterpact NW circuit breaker?

Springs can be charged manually by lowering the charging handle seven times until a click is heard. If an MCH gear motor is installed, it charges them automatically. If automatic charging fails, verify that the supply voltage is above 85% of the nominal voltage.

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