DPX3 630 S1 3P 400 A 50 kA circuit breaker 422510

Three-pole circuit breaker DPX3 630 S1 – reliable protection for electrical installations

This DPX3 630 S1 power breaker is a robust solution for protecting high-load electrical circuits. Designed for operation at 400A, it provides effective protection against overloads and short circuits, ensuring the safety of the installation and connected equipment. It is a key component in energy distribution systems, suitable for both commercial and industrial buildings.

Functionality and applications

This breaker features a wide rated voltage range (220-690V) and a high short-circuit breaking capacity (50 kA at 400 V), making it ideal for demanding applications. It includes a built-in undervoltage release, further enhancing system safety. Thanks to adjustable thermal trip settings (160-400A) and magnetic trip settings (240-4000A), its operation can be precisely tailored to the specific requirements of the installation. Two changeover auxiliary contacts increase functionality, enabling seamless integration with control and signaling systems.

Construction and installation

The DPX3 630 S1 breaker features screw-type connections, ensuring secure and durable wiring. Its compact design (IP30) allows installation in various environmental conditions. Optional motorized operation facilitates remote control and automation of switching operations. The breaker is supplied complete with integrated protection, simplifying installation and ensuring full protection from the outset. An off-position indicator enables quick visual identification of the device’s status.