Legrand Auxiliary Contact 1P Side-Mounted for TX3 and DX3 Series

The Legrand auxiliary contact is a precision-engineered 1-pole side-mounted device specifically designed for seamless integration with Legrand TX3 and DX3 series circuit breakers. This component serves as a critical interface for electrical distribution systems, enabling accurate status signaling and remote monitoring of switchgear states. Its compact design ensures it fits efficiently within standard electrical enclosures, providing essential diagnostic feedback for both industrial and residential power management setups.

Advantages

This auxiliary contact offers high reliability in monitoring the operational state of circuit breakers, ensuring that system administrators receive immediate feedback on whether a breaker is open or closed. By facilitating remote status indication, it significantly reduces the need for manual inspections, thereby enhancing the overall safety and efficiency of electrical installations. The side-mounted configuration allows for a space-saving installation that does not interfere with the primary functionality of the circuit breakers, maintaining a clean and organized distribution board layout.

Suitable for

• Remote monitoring of circuit breaker status in residential distribution boards
• Industrial automation systems requiring feedback on switchgear positions
• Electrical installations where enhanced diagnostic capabilities are necessary
• Integration into smart home or building management systems for status reporting

When it may not be suitable

This device is not intended for use with circuit breaker series outside of the specified TX3 and DX3 ranges, as compatibility is limited to these models. It is also not suitable for applications requiring power switching or direct control of heavy loads, as it is strictly designed for signaling purposes.

Key specifications

• Configuration: 1-pole (1P)
• Mounting type: Side-mounted
• Compatibility: Legrand TX3 and DX3 series circuit breakers
• Function: Status signaling and remote monitoring

How to use

Installation should be performed by a qualified electrician in accordance with local safety regulations. The auxiliary contact is attached to the side of the compatible circuit breaker using the integrated mounting mechanism. Once physically secured, the signaling wires are connected to the terminals of the contact, which then transmit the state of the breaker to a monitoring device or control panel. Ensure that the main power is disconnected before attempting any installation or maintenance on the distribution board.

What to consider before purchase

• Verify that your existing circuit breakers belong to the TX3 or DX3 series
• Ensure there is sufficient physical space on the side of the breaker within the distribution cabinet
• Confirm the requirements of your monitoring system to ensure compatibility with the contact output

Usage recommendations

Always verify the electrical compatibility of the signaling circuit with the auxiliary contact ratings before commissioning. Regular testing of the signaling function during routine maintenance is recommended to ensure continued operational reliability.