DPX3 125 HP 4P 100 A 70 kA circuit breaker 423698

DPX3 125 HP Circuit Breaker – Reliable Protection for Electrical Installations

The DPX3 125 HP is a four-pole (4P) thermal-magnetic circuit breaker designed to protect electrical circuits with a rated current of 100A. It features a high short-circuit breaking capacity of up to 70 kA at 400V, ensuring effective protection against the consequences of sudden overvoltages and short circuits. This robust solution is ideal for both commercial and industrial installations.

Functionality and Applications

This breaker is designed for fixed mounting and offers a wide rated voltage range from 220V to 690V. Thanks to its adjustable thermal trip setting (80-100A) and magnetic trip setting (800-1200A), it can be precisely tuned to match the specific requirements of the protected circuit. Equipped with an off-position indicator, it simplifies device status identification and fault localization. Its design includes one auxiliary changeover contact, expanding integration possibilities with control and signaling systems.

Construction and Key Features

The DPX3 125 HP stands out with its robust construction and screw-type terminals, ensuring secure and durable electrical connections. The IP30 protection rating guards against contact with solid foreign objects larger than 2.5 mm in diameter, enhancing operational safety. No additional protective devices are required, as the breaker comes with a built-in trip unit. Installation is simple and intuitive, and the absence of mandatory accessories simplifies work for electricians. The use of characteristic C enables safe starting of motor-driven equipment with high inrush currents, preventing unnecessary circuit tripping.