BME series intelligent moulded case circuit breaker
BME series intelligent plastic case circuit breakers are suitable for low-voltage power grids with 50Hz, insulation voltage 800V, rated working voltage 400V and rated current 100A to 800A.Generally used for distribution, shell frame rated current 400A and below the circuit breaker can also be used as a protection motor.Distribution circuit breakers are used in distribution networks to distribute electrical energy and to protect lines and power supply equipment against overload and short circuit.The circuit breaker used to protect the motor can be used to protect the squirrel cage motor from infrequent starting, breaking, overload and short circuit voltage during operation.
According to the breaking ability, it can be divided into Y type -- standard type and J type -- high score breaking type;
It has three adjustable protection functions: overload long delay protection, short circuit short delay protection and short circuit instantaneous protection;And has the electromagnetic protection back-up protection function;
With parameter measurement display function: current display, voltage display, power display, power display;
It has communication function: adding communication module can realize remote communication, remote measurement and control and other functions;
The whole series can be installed horizontally, vertically;
It has the function of isolation; Corresponding symbols"";
Auxiliary contacts, alarm contacts, shunt tripping devices and undervoltage tripping devices can be added when necessary.
● Model definition and labeling
GB/T 14048.1（IEC 60947-1）Low-voltage switchgear and controlgear - part 1: general provisions.
GB/T 14048.2（IEC 60947-2）Low-voltage switchgear and controlgear - part 2: circuit breakers
GB/T 14048.4（IEC 60947-4）Low-voltage switchgear and controlgear - part 4-1: electromechanical contactors and motor starters (including motor protectors)
● Accessories list of BME (SBZ) series circuit breaker