Power circuit breaker with thermal-magnetic trip unit DPX3 250 3P 160A 36kA 420237

Power switch – reliable protection of electrical installations

This three-pole DPX3 250 power switch with a rated current of 160A and a short-circuit breaking capacity of 36kA is a key element of every safe and efficient electrical installation. Designed for both commercial and industrial applications, it provides effective protection against overloads and short circuits. Its robust construction and advanced features make it a trusted choice for installers and end-users.

This switch features a wide rated voltage range (220-690V) and the ability to be mounted on a TH rail, making it easy to integrate with existing systems. The built-in undervoltage release further enhances safety, protecting against the effects of voltage drops in the network. This makes the device versatile and can be used in a variety of applications.

Functionality and design features

DPX3 250 is a switch with a C characteristic, which means it allows for short-term overloads without unnecessary tripping. This is particularly important when starting devices with electric motors, which generate high starting currents. The integrated trip indication allows for quick identification of the device status, and the ability to mount additional auxiliary contacts expands its functionality – enabling, for example, remote monitoring of the switch status or integration with building automation systems.

The device's construction is based on a robust switching mechanism and screw connection of the main conductors, guaranteeing reliable operation and durability of the connections. The IP30 degree of protection provides protection against accidental contact and the ingress of solid objects larger than 2.5 mm. Additionally, an optional motor drive enables remote control of the switch, which is useful in automated energy management systems.

Applications and compliance with standards

The DPX3 250 switch is used in:

• Main and sub-distribution boards: Provides central protection of electrical circuits.
• Industrial installations: Protects machines and equipment from damage caused by overloads or short circuits.
• Commercial buildings: Protects lighting circuits, socket outlets and other electrical loads.
• Data centers: Ensures stable power supply to critical IT equipment.

The device meets the requirements of relevant safety standards, ensuring compliance with applicable regulations regarding electrical installations. Its high quality of workmanship and certificates confirm its reliability and safety of use.