Motor-protective circuit-breakers
PKZM01, PKZM0 and PKZM4 – operating principle schematics

Motor-protective circuit-breakers with auxiliary switches and trip-indicating auxiliary contacts [t-head1-pg]

PKZM01(PKZM0-...)(PKZM4...) + NHI11-PKZ0 + AGM2-10-PKZ0

For differential fault message [t-head3]

(Overload or short-circuit)

E1: circuit-breaker ON
E2: circuit-breaker OFF

 

E3: general fault, overload release
E4: short-circuit release


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