1. Application
GSM1 series Molded Case Circuit Breaker(MCCB) are used in AC 50Hz circuit with rated current from 10A up to 800A and with rated insulation voltage up to 690V AC, for the purpose of supply and distribution of electricity. These products has over-loading, short-circuit protection and temperature compensation function.

These Molded Case Circuit Breakers can be attached with Under-voltage Release, Alarming Contact, Auxiliary Contact, Shunt Release, Motor-operating Mechanism.

Standard: IEC60947-2

Certificate: TUV, CE, CCC

2. Working condition and installation condition

Ambient temperature: -5 to +40 centigrade, and the average temperature in a 24 hour period can not exceed +35 centigrade.

Humidity is up to 50 percent at +40 centigrade ambient temperature, and 90% at 20 centigrade.

Site altitude: less than 3000m

According to the breaking ability (except GSM1-400,630,800 four poles breakers, having not theclassification for four poles breakers): Typical type(Type L) Second high breaking type (Type M) High breaking type (Type H)

According to the wiring method: Wiring in front of the board without patch board; Wiring on back of the board with patch board; Insertion connection in front of the board (onlyGSM1-100,225,250,400 have this type); Insertion connection on back of the board; Draw-out connection (only GSM1-400,630,800 have this type)

According to the operation means: Handle operating directly Turning handle Power driven.

According to the usage: Power distribution ; motor protection.

According to the pole number: two poles, Three poles, Four poles.

According to the release pattern: Thermo-electromagnetic(double) type release ;only has According to the type of the neutral pole (N-pole)(having not the classification for two poles three poles products) Type A:N-pole without overcurrent release unit, it has been connected all along, and does not act with other poles to turn on or off Type B:N-pole without overcurrent release unit, it would act with other three poles