3P 50A Molded Case Circuit Breaker

The SPX factory's customized 3P 50A Molded Case Circuit Breaker meets the electrical design requirements of providing safe and space saving protection for loads with a rated current of approximately 50A inside industrial control cabinets, commercial distribution boxes, or various three-phase equipment. It condenses the complete three-phase protection function into a modular unit, optimized for protecting three-phase loads with a rated power of approximately 25kW (at 380V), and is a reliable "safety bridge" connecting power sources and equipment.

Advantage

When any phase experiences overload or short circuit faults, the three pole contacts synchronize and instantly disconnect, fundamentally eliminating the risk of motor burnout caused by single-phase power failure and providing higher safety than the grouped single pole scheme.
The high quality 3P 50A Molded Case Circuit Breaker provides accurate inverse time overload protection and instantaneous short circuit protection for the 50A current level calibrated thermal magnetic trip mechanism, effectively distinguishing between normal motor starting current and fault current.
The shell of the 3P 50A Molded Case Circuit Breaker is made of high strength and highly flame retardant materials, and the internal contacts and arc extinguishing system are reliable and durable, making sure stable performance after multiple load and fault disconnections.
The handle position clearly indicates the ON, OFF, and fault tripping status, making it easy to quickly identify the circuit status.
Provide visible air gaps when disconnected, forming a three-phase isolation point that meets safety standards to ensure the safety of personnel during equipment maintenance.

Typical application scenarios

Main power supply incoming line protection for CNC machine tools, packaging equipment, small and medium-sized pumps, and fans.
As a protective switch for an independent three-phase outgoing circuit in the floor distribution box and workshop power cabinet.
3P 50A Molded Case Circuit Breaker serves as the internal power main switch or branch switch for complete frequency conversion cabinets, soft start cabinets, and PLC control cabinets.