Power switch with thermal-magnetic trip unit DPX3 160 4P 125A 16kA 420016

DPX3 Power Breaker – Reliable Protection for Electrical Installations

Power breaker with thermomagnetic trip unit DPX3 160 is part of the Legrand series, designed to protect electrical circuits against overloads and short circuits. A four-pole (4P) design and a rated current of 125A make it an ideal solution for both commercial and industrial installations. A short-circuit breaking capacity of 16kA guarantees effective protection even in the event of high current flows.

Functionality and Application

This breaker is a TH rail-mounted device, which simplifies its installation and integration with existing electrical infrastructure. The integrated undervoltage release further enhances safety by protecting against the effects of voltage drops in the network. The presence of one normally open (NO) auxiliary contact and one changeover contact allows for the connection of additional signaling or control devices. The breaker also has a trip indicator, which informs about the operation of the protection.

• Wide rated voltage range (220-690V): Allows use in various electrical systems.
• Adjustable overload trip range (100-125A): Allows precise adjustment to the load characteristics.
• High short-circuit breaking capacity (16kA): Ensures effective protection against damage to the installation in the event of a failure.
• Possibility of mounting on DIN TH rail: Facilitates and speeds up installation.
• Protection degree IP30: Protects against accidental contact and the ingress of solid objects larger than 2.5 mm.
• Solid construction: Guarantees long-lasting and reliable operation of the device.

Design and Parameters for Professionals

The DPX3 160 breaker is characterized by a screw connection of the main contacts, which ensures a secure and durable connection of the wires. The adjustable range of the delayed short-circuit trip is 1250-1250A, which allows you to adapt the characteristics to the specifics of the protected circuit – particularly useful for devices generating high starting currents. The lack of an integrated earth fault protection means that additional protective measures must be used in the event of such a risk. Additionally, an optional motor drive allows for remote control of the breaker, which can be useful in automated energy management systems.