Solutions for
Perfect Thermal Management

Circuit Breaker

A circuit breaker is an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and, by interrupting continuity, to immediately discontinue electrical flow. Circuit breakers are made in varying sizes, from small devices that protect an individual household appliance up to large switchgear room designed to protect high voltage circuits feeding an entire city.

Miniature Circuit Breaker


JB1Z-63 Series DC Miniature Circuit Breaker, apply to the rated current of 63A and below, rated voltage 250V and 440V DC line in the. Used on the DC electrical distribution system facilities and equipment overload, short circuit protection may be widely used in electricity, telecommunications, transportation, industrial and mining enterprises and other industries. Is the similar products in the highest frame degree rated current products.



C45N series mini circuit breaker are used in lighting distribution system in dusty, commerce and dwelling, and protecting fractional electric motors, And they also have many merits of high protective grade (up to IP20), high break capacity, reliable sensitive action, convenient, multiple assembling, long life etc. They are mainly adapted to the circuit of AC 50HZ, 230V in single pole, 400V in double, three, four poles for protecting overload and short circuit, Meanwhile, they are also used in turning on or off the electric apparatus and lighting circuit under the normal condition.


Molded Case Circuit Breaker


JM1Z Series DC MCCB adopt international advanced design, manufacturing technology and developed a new circuit breaker, the rated voltage DC550V and below, rated current up to 800A of circuit. Circuit breakers with short circuit, overload protection, to protect circuit and power equipment from damage.



3VL, NS, ABB, DPX, NF, MEM, DORMAN, Hager Molded Case Circuit Breaker


Motor Protection Circuit Breaker


DZ108(3VE) is suitable in AC circuit of 50Hz or 60Hz, voltage up to 660V and current up to 0.1-63A and used toprevent small capacity motor and circuit from overload and short circuit and also used as direct starter forstarting the motor and a switch for changeover the circuit under normal conditions.

To 3VE


DZS8(3RV) Series Motor Protection Circuit Breaker are mainly used for the overload, short-circuit and phase-failure protection for motors in the circuit of AC50/60Hz, Rated operating voltage up to 660V, Rated operating current from 0.11A to 25A. They can be also used for circuit protection in the circuit of 0.11 ~ 25A.

To 3RV


DZS7(3VU) Series Motor Protection Circuit Breaker are applicable for the circuit of AC 50/60Hz, Rated insulation voltage 750V, Rated operating voltage up to 660V, Rated operation current from 0.1A ~ 63A, The are used for protecting motors against overload, short-circuit and phase-failure, They can also be used for starting and stopping starters for motors, and for the circuit protection in the circuit of 0.1 ~ 63A.

To 3VU


DZ518(GV2 GV3)series motor protecting breaker adopts the design of module,It has beautifulshape,small value,complete range of function and reliable performance.DZ518 series is conformity with IEC60947.2, IEC60947-4.1, and EN60947-1 standards,Switch an contactor can make up the starting of the motor The prection grade of the case of DZ518 series can reach IP55.

To GV2


GV3 Motor Circuit Breaker is applied to comtrol theoverload, phade-broken,short-circuir protection and non-frequent start of three-pha squirrel-cage asynchronous electromotor in the circui withmax AV 690 and 1A- 80A current,and is used as distribrtion line protrction and nonfre quent overload conversion, and is also usedas the isolator.

To GV3


M611 is suitable for using in circuit up to AC 660V or 440V and current 0.1 to 63A. It can be used for protection of overload and short circuit of 3-phase squirrel-cage motors, and starters of motors as well at full voltage.

To M611


PKZM0 Motor Protective Circuit Breaker is applicable for the circuit of AC 50/60Hz, rated insulation voltage 750V, rated operating voltage up to 660V, rated operating current from 0.1A to 25A. It is used for protecting the motor against overload, short-circuit and phase-failure. It can be also used for starting and breaking the starter of motor and for the circuit protection in the circuit of 25A.



MS 1-32 type Motor Protection Circuit Breaker (MPCB) is applicable to AC electric circuit with frequency 50/60 Hz, rated voltage up to 690 V and rated current up to 32A. It protects against the overload, disconnection of phase and short-circuit of three-phase asynchronous motors, and it is suitable for unfrequently starting & breaking operations for the motor.

To MS1-32

Residual Current Circuit Breaker/ Residual-Current Device


VL360(F360), VL(ID), VLSM(SSM1), Residual Current Circuit Breaker/ Residual-Current Device



VL3-32, VLF(FIN), VLN(NFIN), VLI(FI-100), Residual Current Circuit Breaker



DZ47L-63E, VL16-40, VL5-40, VL6-32, VL11-32, VL16-32/2E, RCCO, Provides protection against earth fault/leakage current, short-circuit, overload, and function of isolation. Provides complementary protection against direct contact by human body. Effectively protects electric equipment against insulating failure.


Circuit Breaker Accessory

Auxiliary Block

Be suitable for auxiliary ON/OFF contact .Can point out the disconnection or put through position of the circuit breaker, can install on the left of the Circuit Breaker. For use as the sound or light signal.

To Auxiliary Block

Modular Signal Lamp

C45 OF, SD OF, SD Application Be suitable for auxiliary ON/OFF contact .Can point out the disconnection or put through position of the circuit breaker, can install on the left of the Circuit Breaker.

To Modular Signal Lamp>Products > Circuit Breaker