Auxiliary contact or signaling contact, DPX3 421011

Auxiliary contact for DPX³ circuit breakers – reliable circuit status indication

This auxiliary contact, catalog number 421011, is designed to work with the DPX³ series circuit breakers. It is used to indicate the status of the apparatus contacts or its tripping, which is crucial for both installation diagnostics and ensuring safety. Mounted directly to the circuit breaker, it allows for easy integration with existing control and monitoring systems.

Versatile application and compatibility

This contact is compatible with DPX³ and DPX³-I circuit breakers with rated currents from 160A to 1600A. Its versatility makes it suitable for various electrical installations – from residential buildings to industrial facilities. It provides reliable operation in AC circuits with a rated voltage of 250V and a switching current of up to 5A. The contact design allows mounting with overcurrent circuit breakers (MCB), increasing installation flexibility.

Practical benefits for installers and users

• Status indication: Enables quick identification of problems in the circuit, reducing diagnosis and repair time.
• Safety: Informs about the tripping of the circuit breaker, allowing for immediate response in the event of a failure.
• Easy installation: Simple construction ensures quick and trouble-free installation directly on the DPX³ circuit breaker.
• High reliability: Made of high-quality materials guarantees long-lasting and trouble-free operation.
• Versatility: Compatible with a wide range of DPX³ circuit breakers, making it easier to choose the right solution.
• Compact dimensions: A width of 33.8 modules minimizes the space occupied in the switchboard.

The contact has one changeover contact, which can be used for various signaling or control purposes. The lack of normally open and normally closed contacts, as well as the lack of a residual current device self-test function, makes it a basic but effective solution for monitoring the circuit status. Thanks to this solution, both installers and end-users can be sure of the correct operation of the electrical installation and quick response to any failures.