DPX3 circuit breaker 250 HP 3P 32 A 100 kA 423153

Three-pole circuit breaker DPX3 250 HP – reliable protection for installations

This three-pole DPX3 250 HP circuit breaker is part of Legrand’s compact breaker series, designed to protect electrical circuits. It provides effective protection against overloads and short circuits, ensuring the safety of installations and connected equipment. With a rated continuous current of 32 A, it is an ideal solution for diverse applications in both residential and commercial construction.

Design and functionality

The breaker features a robust fixed-mount design. It includes two built-in auxiliary changeover contacts, simplifying integration with control and signaling systems. An off indicator enables quick identification of whether a protective trip has occurred. Optional motorized drive installation extends functionality, enabling remote operation. Main terminal connections are made via bolted connections, ensuring secure and durable wiring.

Specifications and applications

The rated short-circuit breaking capacity of 100 kA at 400 V, 50 Hz ensures high resilience against sudden current surges. The adjustable thermal overload trip range (25–32 A) and magnetic short-circuit trip range (0–400 A) allow precise tuning of the tripping characteristics to match the protected circuit’s requirements. The breaker is designed for operation in networks with a rated voltage between 230 V and 690 V. The IP30 protection rating guards against finger contact and ingress of solid objects larger than 2.5 mm. Front-mounted main circuit terminals facilitate easy installation and access to connections.