Legrand 412623 Twilight Switch 16A with Photocell IP65

The Legrand 412623 Twilight Switch is a high-performance solution for automated lighting management, designed to switch circuits based on ambient light levels. This single-function device is rated for 16A and offers a wide sensitivity range from 1 to 100,000 lux, allowing for precise control over when your lighting systems activate. It comes equipped with an external IP65-rated photocell, ensuring that the sensor remains protected against dust and moisture, making it an ideal choice for reliable outdoor performance in various environmental conditions.

Advantages

This twilight switch provides significant energy savings by ensuring that lights are only active when natural light is insufficient. Its robust design and high IP65 protection rating allow for versatile installation in exposed outdoor areas without the risk of weather-related failure. The wide adjustable lux range offers flexibility for different applications, from simple residential garden lighting to complex commercial perimeter security systems. Furthermore, the device is compatible with a variety of lamp types, including incandescent, halogen, and energy-saving bulbs, providing a versatile solution for modern electrical installations.

Suitable for

• Residential garden and driveway lighting
• Commercial building exterior illumination
• Parking lot and pathway lighting
• Security lighting systems
• Public area lighting control

This device may not be suitable for indoor environments where ambient light levels remain constant or for applications requiring complex time-based scheduling beyond simple light-level detection. It is also not intended for use with high-load industrial machinery or circuits exceeding the specified 16A rating.

Key specifications

• Rated current: 16A at 250V
• Sensitivity range: 1 to 100,000 lux
• Protection rating: IP65 (photocell)
• Dimensions: 80 mm width, 116 mm depth, 73 mm height
• Load capacity: Up to 2000W for incandescent and halogen bulbs
• Mounting: 1 module width

How to use

The device should be installed by a qualified electrician in accordance with local electrical regulations. The main unit is typically mounted within an electrical distribution board, while the included IP65 photocell must be positioned in an area where it can accurately measure ambient light without being obstructed by artificial light sources or shadows. Once installed, the sensitivity threshold can be adjusted on the main unit to match the specific lighting requirements of the location.

What to consider before purchase

• Ensure the total wattage of your lighting circuit does not exceed the device's capacity
• Verify that the installation location allows for proper wiring between the photocell and the main unit
• Check that the chosen mounting location for the photocell is not affected by direct artificial light

Usage recommendations

For optimal performance, ensure the photocell is cleaned periodically to prevent dust or debris buildup, which could interfere with light detection. Avoid placing the sensor in locations where it may be triggered by passing vehicle headlights or other intermittent light sources.