Circuit Breaker

DSJM1-125 MCB Miniature Circuit Breaker AC Circuit Breaker

The DSJM1-125 MCB miniature circuit breaker delivers reliable overload and short-circuit protection for residential, commercial, and industrial systems. Available in 63 amp, 80 amp, 100 amp, and 125 amp ratings, it suits diverse load requirements, while 2-pole mcb, 3-pole mcb, and 4-pole mcb configurations support single-phase to three-phase setups.
Engineered with fast-acting arc-quenching technology, this MCB circuit breaker ensures rapid fault response to minimize equipment damage. Its compact design enables easy installation in standard switchboards, with durable construction for stable performance in harsh conditions. Compliant with global safety standards, the series offers versatile, dependable protection across 63–125 amp applications in 2/3/4-pole variants.

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Standard Capacity

Rated Voltage	230V/400V
Number of Poles	1P, 2P, 3P, 4P
Rated Current	63A~125A
Rated Frequency	50/60Hz
Breaking Capacity	6KA

Product Features

High-Efficiency Breaking Protection:

Equipped with a precise electromagnetic trip system, it enables millisecond-level fault response, with breaking speed meeting international standards. It rapidly cuts off overload/short-circuit currents, effectively reducing arc duration to safeguard downstream equipment.
Multiple Safety Designs:

Featuring a flame-retardant insulated housing and anti-misoperation structure, it integrates dual protection mechanisms (overload thermal protection and short-circuit magnetic protection).
Long-Lasting Durability:

Constructed with high-purity silver alloy contacts and corrosion-resistant housing materials, it passes over thousands mechanical life cycles tests. Capable of operating in a wide temperature range (-5℃~60℃) and harsh environments (humidity, dust), it ensures stable performance without degradation for over 10 years.