Power switch with thermal-magnetic trip unit DPX3 160 3P 40A 16kA 420002

DPX3 Power Circuit Breaker – reliable protection for electrical installations

The DPX3 power circuit breaker with thermal-magnetic trip unit is a protective device for electrical circuits against overload and short circuit. Designed for mounting on TH rails, it provides effective protection in installations with a rated voltage from 220 to 690V. The device's construction, based on proven Legrand technology, guarantees reliability and long-term operation. The integrated trip indicator facilitates quick identification of the device status and location of any failure.

Characteristics and application

The DPX3 160 circuit breaker, with a rated current of 40A and a short-circuit breaking capacity of 16kA, finds application in a wide range of electrical installations – both in residential, commercial, and industrial buildings. Its construction allows for mounting on a TH rail, which simplifies and speeds up installation. The thermal-magnetic trip unit protects against the effects of overloads and short circuits, and the adjustable overload trip range (32-40A) allows for precise adaptation to the load characteristics. An additional normally open auxiliary contact increases the functionality of the circuit breaker, allowing connection of a status indicator.

Key features and benefits

• High short-circuit breaking capacity (16kA): Provides effective protection of the installation even with high short-circuit currents.
• Wide rated voltage range (220-690V): Enables use in different types of electrical networks.
• Thermal-magnetic trip unit: Protects against overloads and short circuits, ensuring safe use.
• Mounting on TH rail: Simplifies and speeds up installation and ensures stable mounting.
• Trip indicator: Quick identification of the device status and location of failure.
• Possibility of motor drive mounting: Expands the functionality of the circuit breaker, enabling remote control (option).
• Solid construction: The device made of high-quality materials guarantees durability and reliable operation.
• Compliance with standards: Ensures safety and meets the requirements of applicable regulations.
• Normally open auxiliary contact: Allows connection of a circuit breaker status indicator or use in control systems.

Thanks to these features, the DPX3 circuit breaker is an optimal solution for both professional installers and end-users looking for reliable protection of their electrical installation. Characteristic C allows it to react more slowly to short current surges, so it tolerates starting motors well. It protects the circuit against overload and short circuit — like most circuit breakers in this class.