GM series molded case circuit breakerDetailed product description：

The GM series molded case circuit breaker is a new type of circuit breaker developed by Beijing People's Electric Appliance Factory using international advanced design and manufacturing technology. Its rated insulation voltage is AC690V, suitable for circuits with AC 50Hz, rated working voltage AC690V and below, and rated working current up to 1250A for infrequent switching and motor starting. Circuit breakers have short-circuit, overload, and undervoltage protection functions, which can protect the circuit and power equipment from damage.

GM series circuit breakers comply with standards
IEC60947-1 GB14048.1 General Provisions
IEC60947-2 GB14048.2 Low Voltage Circuit Breakers
IEC60947-4 GB14048.4 Contactors and Motor Starters
IEC60947-5 GB14048.5 Electromechanical Control Circuit Electrical Appliances

[Features]
The GM series molded case circuit breaker adopts the internationally pioneering patented arc extinguishing technology CCV, which is a quadruple acceleration and narrow gap breaking free arc extinguishing technology, achieving zero arcing and higher breaking capacity (35-85kA). In terms of anti-corrosion performance, the most advanced international process of increasing hardness and anti-corrosion surface treatment, soft nitriding and matte electroplating, is adopted to make the product's anti-corrosion performance higher than nickel plating, suitable for high protection level use, small size, and beautiful appearance.

[Basic Parameters]
Rated current of shell level: 501002254006308001250A
Polar numbers: 2P, 3P, 4P
Rated working voltage: AC400V, 690V
Ultimate short-circuit breaking capacity: M standard type, H high type, R advanced type, G highest type
Operation mode: direct operation of the body, P electric operating mechanism, Z rotating handle operation;
Wiring methods: front board wiring, B-board rear wiring, C plug-in wiring
Usage: Used for power lines, 2 motors, 3 transformers, 4 generators, R DC, U mines

[Model meaning]
GM 225 M/3 3 2 8 2 P 125A AC230V
The GM series shell level rated current is 225A, with a maximum short-circuit breaking capacity of M standard type three pole plastic case circuit breaker. It adopts a compound release (overload long delay+short circuit short delay), with a rated working current of 125A. The accessories are equipped with auxiliary contacts and alarm contacts for motor protection. It uses an AC230V electric operating mechanism and is wired in front of the board.

[Operating Environment]
Altitude of 2000m and below;
The temperature of the surrounding medium should not be lower than -5 ℃ and not higher than 40 ℃. If it is higher than 40 ℃, it can be used with reduced capacity;
Can withstand the influence of humid air;
Capable of withstanding the effects of salt spray and oil mist;
Can tolerate the influence of mold;
Can work reliably under normal ship vibration;
In a medium without explosive hazards, and where there is no gas or conductive dust that can corrode metals or damage insulation;
In a place without rain or snow invasion.