Molded case circuit breaker

• ZQM3T series circuit breakers can work normally under the ambient temperature of- 25°C to+70℃, and the ambient temperature for storage is – 40°C to+70°C. The thermal element of circuit breaker with thermal magnetic release is set at+40℃.

• TM thermal magnetic tripping unit can be used on ZQM8X-100/160/250/400/630 circuit breaker with breaking level f NH/S.
• There are two kinds of TM tripping units:
• TM-D —Used to protect distribution cables.
• TM-G —With lower threshold value, suitable for protecting generator or long cable Vigi leakage module can cooperate with all circuit breakers to provide leakage protection.

• ZQM1 series plastic case circuit breaker (hereinafter referred to as circuit breaker) is one of the new circuit breakers developed by our company with international advanced design and manufacturing technology.
• The rated insulation voltage of 800V is suitable for infrequent switching and infrequent motor starting in circuits with AC 50Hz(60Hz) rated working voltage 690V and below (DC 250V and below) rated working current 10A to 1600A.
• The circuit breaker is equipped with overload, short circuit and undervoltage protection devices to protect lines and power equipment from damage.
• Comply with IEC60947-2GB/T 14048.2

• ZQMS series molded case circuit breakers are improved on the basis of ZQM1.At present, there are five frame grades of 125, 250,400,630 and 800.The rated current ranges from 16A to 800A.This series of products has locking function, which can ensure the danger caused by unauthorized closing of the circuit breaker in the open state; Cage type terminal blocks greatly ensure the reliability of wiring.The specially designed terminal cover can reach the protection level of P30, which can effectively prevent touching live parts during operation.

• EC60947-2GB140482.