DPX3 125 HP 3P 100 A 36 kA circuit breaker 423608

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 overload and short-circuit conditions. Engineered for both professional installers and end users, it ensures safety and reliable operation across a wide range of applications. Its construction based on proven Legrand technology guarantees long-term service life and minimizes the risk of failure.

Characteristics and applications

This breaker features a rated current of 100 A and a high short-circuit breaking capacity of 36 kA at 400 V, making it an ideal solution for installations with high power demands. The adjustable thermal trip setting range of 80–100 A allows precise tuning to the specific characteristics of the protected circuit, enabling rapid response to abnormalities and minimizing the risk of damage to connected equipment. It includes two reversible auxiliary contacts, expanding its functionality and enabling integration with control and signaling systems.

Advantages and design features

• High short-circuit breaking capacity: 36 kA at 400 V ensures effective protection against the effects of sudden voltage surges.
• Adjustable trip current: Range of 80–100 A allows customization to match load characteristics.
• Three-pole design: Provides complete protection for three-phase electrical circuits.
• Auxiliary contacts: Two reversible contacts extend application possibilities in automation systems.
• Solid screw terminals: Ensure secure and durable conductor connections.
• Trip indicator: Facilitates quick identification of the device status after protective tripping.
• Wide rated voltage range: From 220 V to 690 V – universal suitability for diverse installations.
• Protection rating IP30: Provides basic protection against accidental contact and ingress of solid objects.
• Fixed-mount design: Enables direct mounting in electrical distribution boards without additional mounting accessories.

The DPX3 125 HP breaker is compatible with a broad range of electrical equipment and is suitable for use in residential, commercial, and industrial buildings. Its reliability and high build quality make it a long-term investment in the safety and durability of electrical installations.