1600 Amp 3 Pole Mccb with Auxiliary Contacts

WenZhou XiFa electric Power Equipment Co.,Ltd is a experienced factory to produce and supply 1600 amp 3 pole mccb with auxiliary contacts, of which the Service Short Circuit Breaking Capacity could reach to 50kA, where could still providing precise protection, without misjudging or rejecting any actions under the large working current. The auxiliary contacts allows a 1600 amp 3 pole mccb molded case circuit breaker has the function of interlocking control to avoid misoperation, meanwhile offers the status indicator to distribution boards.

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Product Description

1600 amp 3 pole mccb with auxiliary contacts parameter:

Rated Frame Current	1600
Number of Poles	3 pole; 3P; 3 phase
Rated Working Current	1000A; 1250A; 1600A
Frequency	60Hz or 50Hz
Ultimate Short Circuit Breaking Capacity	50 kA /70 kA
Service Short Circuit Breaking Capacity	35 kA /50 kA
Rated Working Voltage	400 V; 690 V
Rated Insulation Voltage	800V; 1000 V
Mechanical Service Life	10000 times
Electrical Service Life	2000 times
Arc distance	≤100 mm

Size

1600 amp 3 pole mccb with auxiliary contacts introduction:

A 1600 amp 3 pole molded case circuit breaker MCCB with auxiliary contacts is designed to automatically interrupt current in low voltage distribution system. When an overload or short circuit occurs, it trips and isolates the power supply.

1600 Amp 3 Pole Mccb With Auxiliary Contacts

A 1600 amp 3 pole mccb with auxiliary contacts uses a molded insulating case to separate live conductors from grounded metal parts. Inside the device, protection is mainly achieved through thermal and magnetic mechanisms. Under overload conditions, a bimetal element in the thermal unit heats up and bends as the current exceeds the rated limit. This movement actuates the tripping mechanism, which causes the handle of a 1600 amp 3 pole mccb with auxiliary contacts to switch to the off position and cutting off the circuit. For short circuits, a sudden surge of current generates a strong magnetic field in the coil of a 1600 amp 3 pole mccb with auxiliary contacts. When the electromagnetic force overcomes the spring force of the core, the moving core is pulled in, driving the trip bar and instantly opening the breaker, thereby providing short circuit protection.

In a broader sense, air insulated circuit breakers include air circuit breakers ACBs , molded case circuit breakers MCCBs, and miniature circuit breakers MCBs. Molded case circuit breakers MCCBs are typically equipped with three terminals for three phase power, which the working voltage is around 380 V, making them suitable for industrial distribution systems and motor protection, of which the working current is larger than residential demand, such as a 1600 amp 3 pole mccb with auxiliary contacts . In contrast, miniature circuit breakers are generally designed for single phase power, of which the working voltage is around 220 V and the working current is relatively lower than a 3 pole molded case circuit breaker MCCB with auxiliary contacts. Miniature circuit breakers are used in building terminal distribution systems. For this reason, standard 1600 amp 3 pole MCCBs molded case circuit breakers are not intended for typical residential use.

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