ZN85-40.5 series indoor high-voltage vacuum circuit breaker is a kind of three-phase indoor high-voltage switchgear of rated voltage 40.5kV and AC 50Hz, equipped with a special 3AV3 spring structure. It can be configured in JYN1-40(Z) moving-off metal-enclosed switchgear, also can be configured in KYN61-40.5(Z) assembly type metal-closed switchgear to use. It is the best ideal circuit breaker of 40.5 kV device.
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