Author: Site Editor Publish Time: 2023-05-29 Origin: Site
M1 moulded case circuit breakers can be divided into external and internal accessories according to the installation position, where the internal accessories include four types of M1 moulded case copper and iron parts, undervoltage release, auxiliary contacts, alarm release and auxiliary alarm modules; external accessories include long handles, manual operating mechanisms, electric operating mechanisms, handle locking devices, mechanical interlocking devices, behind-board wiring devices and plug-in wiring devices.
The material of contact is copper, this type will be more cost effective.
Range of Application
M1 moulded case circuit breaker is mainly used for AC 50Hz (or 60Hz), rated insulation voltage 800V, rated working voltage 690V and below, rated current 1600A and below in the distribution network as distribution of electrical energy and protection of lines and power supply equipment overload, undervoltage and short circuit protection, 400A case frame level below the circuit breaker, but also as motor overload, undervoltage and short circuit protection. Under normal conditions it can be used for infrequent conversion of lines and infrequent starting of motors.