Legrand 406276 Shunt Trip Release 12-48V AC/DC for TX3, DX3 and FRX Series

The Legrand 406276 Shunt Trip Release is a specialized auxiliary component engineered for the remote control and safety disconnection of modular circuit protection devices. Designed to integrate seamlessly with the Legrand TX3, DX3, and FRX series, this unit allows for the immediate tripping of circuit breakers, residual current circuit breakers, and isolating switches from a remote location. By utilizing a simple normally open push button, users can ensure rapid power isolation, which is critical for maintaining safety in both residential and industrial electrical distribution systems.

Advantages

This shunt trip release offers a highly reliable solution for remote electrical management without requiring complex installation procedures. Its design allows for tool-free attachment to the main modular device, significantly reducing assembly time during panel construction. The unit is engineered to occupy only a single module of space, ensuring that it does not unnecessarily increase the footprint of the distribution board. Furthermore, it is fully compatible with supply busbars, maintaining the integrity and organization of the electrical installation while providing essential remote tripping functionality.

Suitable for

• Remote emergency power disconnection in residential distribution boards
• Industrial control panels requiring automated safety tripping
• Integration with MCBs, RCBOs, and RCCBs for enhanced circuit protection
• Systems where manual remote control of circuit breakers is necessary

When it may not be suitable

This device is specifically designed for use with compatible Legrand modular series and may not be suitable for integration with circuit breakers from other manufacturers or older, non-compatible product lines. It is not intended for applications requiring continuous duty cycles beyond the scope of a standard shunt trip operation.

Key specifications

• Operating voltage: 12-48V AC/DC
• Compatibility: Legrand TX3, DX3, and FRX series
• Mounting position: Left-hand side of the device
• Space requirement: 1 module
• Maximum capacity: 1 remote tripping auxiliary per device

How to use

Installation of the Legrand 406276 is straightforward and does not require any specialized tools. The auxiliary unit is designed to be snapped onto the left-hand side of the compatible circuit breaker or isolating switch. Once physically attached, the electrical connections for the 12-48V control circuit should be wired to a normally open push button. When the button is pressed, the shunt trip receives the signal and mechanically triggers the main device to open the circuit.

What to consider before purchase

• Verify that your existing circuit breaker is part of the TX3, DX3, or FRX series
• Ensure that you have sufficient space on the DIN rail for an additional module
• Confirm that your control circuit voltage falls within the 12-48V AC/DC range
• Check that you are not exceeding the limit of one remote tripping auxiliary per device

Usage recommendations

Always ensure that the main power supply is disconnected before attempting to install or modify any electrical components within the distribution board. Test the remote tripping functionality after installation to confirm proper operation.