Legrand 412401 Silent Time-Delay Relay 230VAC 1NO

The Legrand 412401 is a high-quality silent time-delay relay engineered for 230VAC electrical circuits. This device features a 1NO (normally open) contact configuration, providing reliable and precise time-controlled switching for various electrical installations. Designed with a focus on acoustic comfort, its silent operation makes it an excellent choice for environments where noise reduction is a priority, such as bedrooms, offices, or quiet public spaces. It ensures consistent performance for managing lighting or ventilation systems with accuracy.

Advantages

The primary benefit of this relay is its silent switching mechanism, which eliminates the audible clicking sounds typical of standard electromechanical relays. This feature significantly enhances user comfort in residential and professional settings. Furthermore, the device is built to the high standards of Legrand, ensuring long-term durability and consistent timing precision. Its compact design allows for easy integration into standard electrical distribution boards, simplifying the installation process for professionals.

Suitable for

• Residential lighting control systems
• Ventilation and exhaust fan timing
• Quiet office environments
• Public buildings requiring noise-sensitive equipment

When it may not be suitable

This relay is specifically designed for 230VAC circuits and is not compatible with low-voltage DC systems or high-power industrial machinery that exceeds its rated switching capacity. It should not be used in environments with extreme humidity or temperatures outside the manufacturer's specified operating range.

Key specifications

• Operating voltage: 230VAC
• Contact configuration: 1NO (Normally Open)
• Operation type: Silent time-delay
• Mounting: Standard DIN rail

How to use

The relay should be installed by a qualified electrician into a standard distribution board. Once mounted on the DIN rail, the input terminals are connected to the 230VAC power supply, and the output terminals are wired to the load, such as a light or fan. The timing parameters should be configured according to the specific requirements of the connected device before finalizing the installation and restoring power to the circuit.

What to consider before purchase

• Verify that your circuit voltage is 230VAC
• Ensure the load current does not exceed the relay's rated capacity
• Confirm that the DIN rail space is available in your distribution board

Usage recommendations

Always ensure the power supply is completely disconnected before attempting any installation or maintenance work on the relay to prevent electrical hazards.