Power switch with electronic trip unit with built-in residual current device with measurement functions DPX3 250EL+P+BL.R 4P 100A 70kA 420687

Power circuit breaker with residual current protection – reliable installation protection

This four-pole DPX3 250EL+P+BL power circuit breaker with a rated current of 100A and a short-circuit breaking capacity of 70kA is a solid solution for demanding electrical installations. Equipped with an electronic trip unit and a built-in residual current device, it provides comprehensive protection against overloads, short circuits and electric shock. This device is suitable for both commercial and industrial buildings where high reliability and safety are required.

Functionality and application

This circuit breaker is designed for mounting on a TH rail and is characterized by its versatile application thanks to the rated voltage range from 220 to 690V. The built-in undervoltage release further increases the safety of the installation. The ability to connect auxiliary contacts (normally open and normally closed) allows integration with control and signaling systems. The integrated short-circuit to ground protection minimizes the risk of failure and equipment damage. This makes it an ideal choice for installers looking for a versatile solution, as well as end-users who value safety and comfort.

Advantages in practice

• Versatility: A wide range of rated voltages (220-690V) allows for use in various installations.
• Comprehensive protection: The combination of a power circuit breaker, residual current device and undervoltage release provides complete safety.
• Precise settings: Adjustable overload trip range (40-100A) and short-circuit trip range (60-1000A) allows adaptation to the specifics of the load.
• High short-circuit breaking capacity: 70kA at 400V guarantees effective protection even in the event of large voltage surges.
• Easy installation: Designed for mounting on a TH rail, which simplifies and speeds up installation.
• Trip indicator: Allows quick identification of the cause of the circuit disconnection, facilitating diagnostics and repair.
• Solid connections: Screw connection ensures a secure and durable connection of wires.
• Expandability: Optional installation of a motor drive and auxiliary equipment increases the functionality of the device.

Thanks to this circuit breaker, it not only protects the electrical installation from damage, but also minimizes the risk of downtime and costly repairs. It is an investment in the safety and reliability of the electrical system.