Dusk-to-Dawn Photocell Switch FF AZH-S 16A 230V 2–1000 lx with External Sensor IP40

FF AZH-S is a dusk-to-dawn photocell switch designed to control lighting and electrical loads automatically according to ambient light. The device is rated for 16 A at 230 V and provides adjustable sensitivity across a range of 2–1000 lx. An external probe sensor is included to allow flexible placement separate from the switch body. The unit is intended for basic indoor or sheltered outdoor installations and has IP40 protection.

Advantages

The FF AZH-S offers adjustable light sensitivity from very low to bright conditions, enabling accurate switching between day and night levels. Its external probe sensor permits mounting where light measurement is most representative while keeping the switch itself in an accessible location. With a 16 A switching capacity at 230 V, the module is suitable for a variety of lighting loads and simple electrical appliances. The straightforward design supports easy integration into existing circuits for automatic control without additional timers or controllers.

Suitable for

• Automatic control of indoor lighting in hallways, storage rooms, stairwells
• Control of sheltered outdoor lighting where IP40 protection is acceptable
• Switching of lighting circuits and simple resistive or inductive loads up to 16 A
• Retrofit installations where an external light sensor placement is required

Key specifications

• Rated switching current: 16 A
• Rated voltage: 230 V AC
• Light sensitivity range: 2–1000 lux (adjustable)
• External probe sensor included for remote light measurement
• Protection class: IP40 (suitable for indoor or sheltered locations)
• Automatic dusk-to-dawn operation based on ambient light

How to use

Install the FF AZH-S switch in compliance with local electrical regulations, ensuring the power supply is disconnected before wiring. Mount the external probe sensor where it receives representative ambient light (away from direct artificial light sources) and route its cable to the switch. Set the desired sensitivity within the 2–1000 lx range to define the threshold between day and night switching. After wiring and adjustment, restore power and verify that the load switches on and off at the intended light levels.

Usage recommendations

For reliable operation, position the external sensor clear of nearby lamps, reflective surfaces, or heat sources that could distort light readings. Use this device indoors or in sheltered outdoor locations where IP40 protection is sufficient. If precise control in exposed outdoor environments is needed, consider selecting a photocell with a higher ingress protection rating.