DPX3 630 S1 3P 400 A 36 kA circuit breaker 422500

Three-pole circuit breaker DPX3 630 S1 – Reliable protection for electrical installations

The DPX3 630 S1 circuit breaker is an advanced solution designed to protect high-load electrical installations. Engineered for both industrial and public building applications, it provides effective protection against overloads and short circuits. Its robust construction and high breaking capacity ensure safety and long-term reliability.

Characteristics and applications

This three-pole circuit breaker, rated at 400A and with a short-circuit breaking capacity of 36kA at 400V, 50Hz, is ideal for protecting circuits supplying high-power equipment such as motors, electric heaters, and air conditioning systems. Equipped with the electronic S1 trip unit, it delivers precise and rapid response to changes in the circuit. The S1 trip unit allows customization of the breaker’s characteristics to suit specific application needs, offering an adjustable overload range from 160 to 400A and a short-circuit range from 240 to 4000A.

Advantages and benefits

• High breaking capacity: 36kA at 400V ensures effective protection even during severe short circuits.
• Precise protection: The electronic S1 trip unit enables accurate adjustment of operating parameters to match the specific load.
• Versatility: Suitable for a wide range of applications—from commercial buildings to industrial facilities.
• Robust construction: Ensures durability and reliability under demanding operating conditions.
• Expandability: Optional motorized drive enables remote control of the breaker. Auxiliary contacts and mechanical locks are also available to enhance functionality.
• User safety: An outage indicator signals when protection has operated, simplifying fault diagnosis in the installation.
• Easy installation: Screw terminals ensure secure and rapid connection of conductors.
• Compliance with standards: The device meets stringent safety standards, guaranteeing safe operation.

The DPX3 630 S1 circuit breaker is an investment in the safety and reliability of your electrical installation—for both professionals and end users. Thanks to its functionality and durability, it represents the optimal solution for demanding applications.