DPX3 125 HP 3P 32 A 100 kA circuit breaker 423703

Three-pole circuit breaker DPX3 125 HP – Reliable protection for electrical installations

The DPX3 125 HP breaker is a robust and efficient device designed to protect electrical circuits against overloads and short circuits. Suitable for both residential and commercial applications, it ensures safety and uninterrupted power supply. The device’s construction, based on Legrand’s proven technology, guarantees long-term, fault-free operation.

Characteristics and applications

This breaker, rated at 32A, performs excellently in installations with voltages ranging from 220 to 690V. Its high short-circuit breaking capacity (100 kA at 400V) ensures effective protection even during severe network disturbances. The C characteristic allows it to respond more slowly to brief current surges, making it ideal for starting inductive loads such as pumps, compressors, and air conditioners—minimizing the risk of unnecessary tripping during normal operation of connected devices.

The DPX3 breaker features two changeover auxiliary contacts, enabling integration with remote control and circuit status signaling systems. An outage indicator allows rapid identification of the location of a short circuit or overload. Installation is performed via screw terminals, ensuring secure and durable electrical connections.

Advantages and benefits

• High short-circuit breaking capacity (100 kA): Ensures effective protection of installations against short-circuit damage.
• C characteristic: Optimal for circuits with inductive loads (motors), minimizing false tripping.
• Three-pole design: Enables protection of three-phase electrical circuits.
• Two auxiliary contacts: Expands breaker functionality—enables integration with automation and signaling systems.
• Robust construction: Guarantees long-term, reliable operation under various environmental conditions (operating temperature range: -5°C to 70°C).
• Safety: Compliance with safety standards ensures protection of people and property against electric shock and fire.
• Easy installation: Screw terminal connections simplify and accelerate installation.
• Trip indicator: Rapid identification of the cause of circuit interruption facilitates diagnosis and repair.

The device is supplied complete with integrated protection, eliminating the need for additional purchases. The IP30 protection rating guards against accidental contact and ingress of solid objects larger than 2.5 mm—suitable for most standard indoor electrical installations.