Contactum 4-pole miniature circuit breaker (MCB) designed for high-capacity circuit protection in residential, commercial, and industrial electrical systems. Rated at 125 amps, it provides reliable protection against overloads and short circuits across multiple phases simultaneously. The durable insulated housing features four linked red toggle switches for coordinated operation, ensuring safe and efficient power control. Designed for DIN rail mounting, it is compatible with standard distribution boards and complies with international safety standards.