DPX3 125 HP 3P 40 A 36 kA circuit breaker 423604
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Sales unit dimensions and weight: 1 pcs
DPX3 125 HP 3P 40 A 36 kA circuit breaker 423604
Protection and Reliability in One – DPX3 125 HP Circuit Breaker
This three-pole DPX3 125 HP thermal-magnetic circuit breaker from Legrand is a robust solution for protecting electrical installations. Designed to operate at rated voltages from 220–690 V, it provides effective protection against overloads and short circuits in circuits with currents up to 40 A. Its high short-circuit breaking capacity of 36 kA at 400 V ensures safety even during high surge currents.
This breaker stands out for its versatility—ideal for both building and industrial installations. Two auxiliary contacts enable connection of status signaling, enhancing system functionality. Installation is achieved via screw terminals, ensuring secure and durable connections. The fixed-mount design guarantees long-term stability and reliable operation.
- High short-circuit breaking capacity (36 kA): Ensures rapid response and minimizes damage risk during short circuits.
- Wide rated voltage range (220–690 V): Enables use in diverse electrical installations.
- Adjustable overload trip current: Setting range of 32 to 40 A allows precise adaptation to circuit characteristics.
- Two auxiliary contacts: Enable remote monitoring of breaker status and integration with automation systems.
- Robust construction: Fixed mounting ensures stability and long-term reliability.
- Trip indicator: Quick identification of breaker status—whether it tripped and why.
The DPX3 125 HP breaker features an IP30 protection rating, providing protection against finger contact and solid objects larger than 2.5 mm. The rated short-circuit breaking capacity at 400 V reaches 36 kA, with the short-circuit trip setting range from 320 to 480 A—guaranteeing safety and reliability under demanding operating conditions. The absence of integrated earth-fault protection or motor drive does not limit its functionality in standard applications, while the ability to connect two auxiliary contacts expands its integration potential with control and monitoring systems.

