CM1 Series MCCB rated current 25A to 800V moulded case circuit breaker AC/DC type

GENERAL

Introduction

1.Application

STM1 series Moulded case circuit breaker(hereinafter referred to as circuit breaker), is applied to circuit of AC 50Hz(or 60Hz),rated insulation voltage 800v(STM1-100 is 500V),rated operate voltage up to 690V, rated operate current up to 1250A as unfrequently circuit transferring and motor starting. Circuit breaker has protection functions against faults like,overload,long-delay inverse-time,short-circuit instantaneous and undervoltage to keep circuit and power-supply without damage. And it has completed protection characteristic,high accuracy and improving power-supply reliability.

According to Circuit breaker rated ultimate short-circuit breaking capacity, it has M type(normal break capacity type), H type (high break capacity).This product has advantages of compact size,high breaking capacity,short-Arc,anti-vibration, and it is suitable for land and boat.

Circuit breaker can install vertically,also can install horizontally.
Circuit breaker has insulation function,
Circuit breaker can not input inverted,only 1,3,4 connect to power-supply,2,4,6 connect to load line.
This product conforms to standards of GB14048.2 and IEC60947-2.

Specifications

Main Functions

• Protection against overload – currents above the rated value that last longer than what is normal for the application.
• Protection against electrical faults – During a fault such as a short circuit or line fault, there are extremely high currents that must be interrupted immediately.
• Switching a circuit on and off – This is a less common function of circuit breakers, but they can be used for that purpose if there isn’t an adequate manual switch.

The wide range of current ratings available from molded-case circuit breakers allows them to be used in a wide variety of applications. MCCBs are available with current ratings that range from low values such as 15 amperes, to industrial ratings such as 2,500 amperes. This allows them to be used in both low-power and high-power applications.