Mould Case Circuit Breaker

Good sale factory direct sales 3 phase 3P,4P 250a molded case circuit breaker NS mccb

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Good sale factory direct sales 3 phase 3P,4P 250a molded case circuit breaker NS mccb
Good sale factory direct sales 3 phase 3P,4P 250a molded case circuit breaker NS mccb
Good sale factory direct sales 3 phase 3P,4P 250a molded case circuit breaker NS mccb
Good sale factory direct sales 3 phase 3P,4P 250a molded case circuit breaker NS mccb
Good sale factory direct sales 3 phase 3P,4P 250a molded case circuit breaker NS mccb
Good sale factory direct sales 3 phase 3P,4P 250a molded case circuit breaker NS mccb
Good sale factory direct sales 3 phase 3P,4P 250a molded case circuit breaker NS mccb

KNS MOULDED CASE CIRCUIT BREAKER

APPLICATIONS

KNS moulded case circuit breaker is one of the most advanced type breakers in the world,

which adopts international advanced design and manufacture technology. They are suitable for short

circuit and overload protection for circuit of AC 690V 50/60Hz, rated current from 12.5A to 630A.

It takes protect effect when mouse cage motors non-frequent start, breaking off working and

protecting overload, short circuit and lacking voltage.

TRIPPING CHARACTERISTICS OF MCCB

Rated current of
release(A)
Thermodynamic release (ambient temp+40℃) Operational current
1.05In(cold state)
inoperative time (h)
1.30In(heat state)
inoperative time (h)
of magnetic
release(A)
In≤63 ≥1 <1 10In±20%
63<In≤100 ≥2 <2 10In±20%
100<In≤630 ≥3 <2 5-10In±20%
Rated current
of release(A)
Thermodynamic release (ambient temp+40℃) Operational current
of magnetic release(A)
1.0In(cold state)
operative time (h)
1.20In(heat state)
operative time (h)
1.50In (heat state)
operative time (h)
1.01In(heat state)
operative time (h)
12.5≤In≤400 ≥2 <2 ≤4min 2S<Tp≤10S 12In±20%

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