DPX3 125 HP 4P 25 A 36 kA circuit breaker 423612

Reliable Protection for Electrical Installations – DPX3 125 HP Circuit Breaker

This four-pole DPX3 125 HP automatic circuit breaker from Legrand guarantees safety and reliability in every electrical installation. Designed to protect circuits with a rated current of 25A, it performs excellently in both residential and commercial buildings. Its rated short-circuit breaking capacity of 36kA at 400V ensures effective response to dangerous overvoltages, minimizing the risk of damage and fires.

Construction and Application

The DPX3 125 HP breaker features a robust fixed-mount construction, ensuring stability and long-term operation. It is designed for use with a rated voltage range of 220-690V and includes screw terminals compatible with conductors ranging from 2.5 to 50 mm². This makes installation simple and safe, with secure and durable connections. The absence of DIN rail or TH rail mounting capability means this breaker requires a dedicated space within the distribution board.

Safety and Functionality

Equipped with an off-position indicator, it enables rapid identification of the device’s status and potential fault causes. The adjustable thermal trip range (20-25A) and magnetic trip range (320-480A) allow precise tuning of protection parameters to match the specific requirements of the protected circuit. An additional changeover auxiliary contact enhances functionality by enabling connection to external signaling or control devices. The absence of integrated earth-fault protection requires the use of additional protective measures if such protection is needed. The breaker is supplied pre-equipped with protective components, ensuring full readiness for installation immediately after unpacking.