DPX3 circuit breaker 250 HP 3P 160 A 100 kA 423160

Three-phase switch – reliable protection for installations

The DPX3 250 HP switch is a robust solution designed for protecting electrical circuits in both commercial and industrial applications. With a rated continuous current of 160 A and an exceptional short-circuit breaking capacity of 100 kA, it ensures effective protection against overloads and short circuits. The three-pole design makes it ideal for safeguarding three-phase electrical installations.

Functionality and installation

This switch offers universal compatibility: bolted connections ensure secure and durable wiring. The front-mounted main circuit terminals simplify installation and provide easy access to terminals. A built-in trip indicator enables rapid identification of the device’s status, which is especially valuable during diagnostics and maintenance. Optional motorized operation can be added to extend functionality, enabling remote control.

Specifications and safety

The DPX3 250 HP features two reversible auxiliary contacts, suitable for signaling the switch’s status or connecting to other control devices. The adjustable overload trigger setting range (125–160 A) allows precise tuning to match load characteristics. The rated short-circuit breaking capacity at 400 V, 50 Hz reaches up to 100 kA, ensuring high resilience against dynamic loads. The adjustable short-circuit trigger setting range (800–1600 A) further enhances installation safety. The IP30 protection rating guards against finger contact and ingress of solid objects larger than 2.5 mm — a standard for this type of equipment. The device is supplied with integrated protection, eliminating the need for additional components.