ZN28-12 Indoor vacuum circuit breaker
Product Description
Product name: ZN28-12 Indoor vacuum circuit breaker
ZN28-12 and ZN28A-12 indoor HV vacuum circuit breaker applies to power system of rated voltage 12kV, three-phase AC 50/60HZ. It used to control and protect electric apparatus in industry like mining, substation and so on. ZN28-12 is a unitary type (operation mechanism is installed inside the switchgear and combine with it as a whole); ZN28A-12 is a hanging-on type (the mechanism and switchgear are seperately installed on cubicle or support frame, then connected with link rod and drive shaft.) It conforms to GB1984-89 standards.
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