Power switch with thermal-magnetic trip unit DPX3 250 3P 160A 25kA 420207

Power switch for demanding applications

This three-pole DPX3 250 power switch with a rated current of 160A and a short-circuit breaking capacity of 25kA is a robust solution for protecting electrical installations. Designed by Legrand, it combines reliability and advanced features, ensuring safety and continuity of power supply. It is suitable for both industrial and commercial installations, as well as public buildings.

Design and functionality

The DPX3 250 switch is characterized by a durable construction mounted on a TH rail, which facilitates installation and replacement. It has a built-in thermal-magnetic trip unit with an adjustable setting range from 128 to 160A, allowing for precise adjustment to the load characteristics. Additionally, the short-circuit trip unit setting range is from 800 to 1600A, providing effective protection against the effects of overloads and short circuits. The trip indicator informs about the operation of the protection, making it easier to identify problems in the installation. It is equipped with one changeover auxiliary contact and one normally open contact, enabling integration with control and signaling systems.

Applications and benefits

The DPX3 250 switch is ideal for protecting circuits powering various devices, such as heat pumps, heating systems or power tools. Its high short-circuit breaking capacity (25kA at 400V) guarantees safety even in the event of serious disturbances in the network. The possibility of mounting on a TH rail and the optional motor drive facilitate installation and remote control. The integrated undervoltage release further increases the level of protection of the electrical installation. Thanks to the screw connection of the main contacts, it ensures a secure and durable connection of the wires.