Power switch with electronic trip unit with built-in residual current device DPX3 250 EL+BL.R 4P 100A 36kA 420355

Advanced protection of electrical installations with DPX3 250 EL+BL circuit breaker.

This four-pole power circuit breaker combines overcurrent and short-circuit protection functions with a built-in residual current device (RCD), providing comprehensive protection in demanding installations. Designed to operate in networks with a rated voltage from 220 to 690V, it offers a high short-circuit breaking capacity – up to 36kA at 400V. This is a solid solution for both professionals and end-users who value safety and reliability.

Functionality and flexible mounting

The DPX3 circuit breaker is designed for mounting on a TH rail, making it easy to integrate with existing systems. The fixed mounting design guarantees stability and durability of connections. The possibility of connecting main contacts using screw connections ensures a secure and reliable connection of wires. Additionally, optional mounting on a DIN TH rail and the ability to connect a motor drive increase the flexibility of application. The tripping indicator allows for quick identification of the device status.

Precise protection and adaptation to needs

The electronic release with a setting range from 40 to 100A allows for precise adjustment of the protection to the load characteristics. Integrated earth fault protection and undervoltage release further increase the level of safety. The setting range of the short-circuit release (60-1000A) allows adaptation to specific installation requirements. The availability of auxiliary contacts – one normally closed and one normally open – expands the possibilities of integration with control and signaling systems. Characteristic C allows it to react more slowly to short current surges, therefore it tolerates starting motors well. It protects the circuit against overload and short circuit — like most circuit breakers in this class.