SJKM1-250L/3300 Plastic Shell Circuit Breaker

Scope of application
The SJKM1 series plastic shell circuit breaker (hereinafter referred to as the circuit breaker) is mainly used in distribution networks with AC 50Hz or (60Hz), rated insulation voltage of 800V, rated working voltage of 690V and below, and rated current of 1250A and below. It is used for distributing electrical energy and protecting lines and power equipment from overload, undervoltage, and short circuit protection. Circuit breakers with a 400A shell level or below can also be used for motor overload, undervoltage, and short circuit protection. Under normal circumstances, it can be used for infrequent switching of circuits and infrequent starting of motors
Compliant with standards: IEC60947-2, GB14048.2

Note: 1. Circuit breakers for power distribution have no code; The circuit breaker for protecting the motor is represented by 2
2. Polarity can be divided into two poles, three poles, and four poles
3. The handle is operated directly without a code, the motor operation is represented by D, and the rotating handle operation is represented by Z
4. Economic type is represented by C; The standard type is represented by L; Higher classification is represented by M; The high breaking type is represented by H

Normal working conditions and installation conditions
◆ Environmental temperature: The circuit breaker can operate normally at a controlled ambient temperature of -5 ℃ to+40C (except for special orders)
◆ Altitude: The installation location of the circuit breaker should not exceed an altitude of 2000m
Pollution level: The pollution level of the circuit breaker is level 3
Installation category: The installation category of the circuit breaker is Class III
Installation position: The circuit breaker can be installed horizontally, vertically, or horizontally without compromising its electrical performance