ESYLUX Surface-Mounted Twilight Switch CdS-A/T with Timer RK39500010040

The ESYLUX RK39500010040 is a professional surface-mounted twilight switch with integrated timer, designed for automatic lighting control based on ambient brightness. Featuring a CdS light sensor and adjustable switch-on/off delays, it is ideal for outdoor and indoor applications where energy efficiency and convenience are required.

Advantages

Energy-saving automatic lighting control; adjustable light threshold (2-2000 lux); integrated timer function (1-10 hours after dusk); robust IP54 protection for outdoor use; UV-stabilised housing for long life.

Suitable for

• Outdoor lighting control (e.g., gardens, pathways, facades)
• Indoor automatic lighting in corridors, stairwells, or warehouses
• Energy management in commercial and residential buildings

Key specifications

• Operating Voltage: 230 V AC / 50 Hz
• Max. Switching Capacity (Incandescent): 2300 W
• Max. Switching Capacity (LED): 1000 W
• Max. Switching Capacity (Fluorescent, uncompensated): 2300 VA
• Light Value Range: 2 - 2000 Lux (adjustable)
• Switch-on Delay: approx. 10 - 120 seconds
• Switch-off Delay: approx. 10 - 120 seconds
• Timer Function: 1 - 10 hours (after dusk)
• Sensor Type: CdS (Cadmium Sulfide)
• Mounting Type: Surface-mounted (AP)
• Protection Class: IP54
• Ambient Temperature: -25 °C to +50 °C
• Power Consumption: approx. 0.8 W
• Housing Material: UV-stabilised Polycarbonate
• Colour: White (RAL 9010)
• Connection Type: Screw terminals
• Max. Cable Cross-section: 2.5 mm²

Recommendations

For optimal performance, use with compatible ESYLUX accessories and ensure proper installation by a qualified electrician. The integrated timer allows extended lighting periods after dusk, ideal for security or decorative lighting.