Power circuit breaker with thermal-magnetic trip unit DPX3 160 3P 40A 50kA 420122

DPX3 Power Switch – Reliable Installation Protection

This three-pole DPX3 160 thermal-magnetic circuit breaker is a robust solution for protecting electrical circuits. It provides effective protection against overloads and short circuits, and its high short-circuit breaking capacity (50 kA at 400V) guarantees safety in the event of a failure. TH rail mounting simplifies installation and integration with existing infrastructure.

Functionality and Application

The DPX3 circuit breaker is designed for fixed mounting and is ideal for electrical installations in commercial, industrial buildings and residential construction. Its universal rated voltage (220-690V) allows it to be used in a wide range of installations. The built-in undervoltage release further increases system safety. Thanks to its one changeover auxiliary contact and two normally closed auxiliary contacts, it enables remote monitoring of the circuit breaker status and integration with automation systems.

Construction and Characteristics

The circuit breaker is characterized by a solid construction and high quality workmanship. Screw connection ensures a secure and durable connection of the wires, and the IP30 degree of protection protects against contact and ingress of solid objects. The rated continuous current at 40A, combined with the overload release setting range (32-40A), allows for precise adaptation to the needs of a specific installation. The thermal release characteristic allows adaptation to the load, and the electromagnetic setting at 400A ensures a quick response in the event of a short circuit. The trip indicator allows easy identification of the circuit breaker status after the protection has operated. The optional mounting of a motor drive expands the functionality of the device.