YBRM5-400 Series Circuit Breaker with Plastic Housing

The YBRM5-400 Series Circuit Breaker with Plastic Housing is a heavy-duty molded case circuit breaker tailored for industrial heavy-load equipment, energy storage systems and commercial main power distribution. It delivers reliable electrical safety and comprehensive circuit protection, fully compliant with IEC60947-2 and GB standards for global engineering project approval. This premium molded case circuit breaker features a high-strength flame-retardant plastic housing, which effectively resists high temperature, aging and electric leakage. Equipped with professional thermal-magnetic trip devices and upgraded arc-extinguishing chambers, it provides delayed tripping for overload faults and instant cutoff for destructive short circuits, greatly improving overall electrical safety. Available in 3P/4P specifications with a current range of 200A to 400A, this rugged MCCB fits standard distribution cabinets for quick and convenient installation. Its stable mechanical structure ensures lo…