DPX3-I 125 HP 3P 125 A circuit breaker 423184

DPX3-I Disconnect Switch – Reliable Protection for Electrical Installations

The DPX3-I 125 HP is a three-pole device from Legrand, designed for effective protection of electrical circuits with a rated current up to 125A. Its robust design and technical specifications make it an ideal solution for demanding industrial installations as well as advanced systems in commercial and residential buildings. Its durability and precise operation ensure user safety and long-term reliability.

Functionality and Applications

The DPX3-I 125 HP is a complete enclosed device designed for mounting on TH rail (despite being designed for mounting on TH rail, this model does not support it). It is intended for disconnecting circuits during emergencies, maintenance, or repairs. It features two changeover auxiliary contacts, enabling integration with control and signaling systems. The rated continuous current of 125A ensures stable operation even under heavy loads. The rated voltage range of 220…690V allows for broad application across various types of installations.

Design Features and Benefits

The DPX3-I disconnect switch is characterized by high manufacturing quality and thoughtful design. The bolted connection of the main contacts ensures secure and durable wiring. The IP30 protection rating guarantees protection against accidental contact and ingress of solid objects, enhancing operational safety. The absence of a motorized drive and DIN rail TH mounting option makes this a classic solution for professionals who value simplicity and reliability. Additionally, the presence of an off-state indicator facilitates quick identification of the device’s status. The lack of integrated short-circuit protection and undervoltage trip means additional protective devices must be installed in the system—offering greater design flexibility.