Dusk-to-Dawn Switch Eti-Polam ETS-16b 1P 16A 230V AC 2–50 lx IP65

Eti-Polam ETS-16b is a dusk-to-dawn (photocell) automatic switch designed to control lighting circuits up to 16 A at 230 V AC. The device senses ambient illuminance in the 2–50 lx range and operates a single pole contact to switch lighting on at low light levels and off when brightness returns. With an IP65-rated enclosure, the ETS-16b is built for exposed and damp locations and provides a compact, straightforward solution for automating outdoor, façade and garden lighting according to natural light conditions.

Advantages

The ETS-16b offers simple automatic light control based on measured lux levels, reducing the need for manual switching. Its single-pole 16 A switching capability suits a wide range of low-power lighting circuits, while the 2–50 lx sensitivity range allows tuning to different ambient lighting thresholds. The IP65 protection ensures resistance to dust and water jets, making the unit suitable for outdoor installation without additional protective enclosures.

Suitable for

• Automatic switching of street lighting and pathway luminaires
• Facade and architectural lighting that requires dusk-to-dawn control
• Garden, courtyard and residential outdoor lighting
• Simple lighting circuits up to 16 A where a single-pole switch is acceptable

When it may not be suitable

The ETS-16b is not intended for switching heavy loads or three-phase systems; its 16 A single-pole contact limits use to relatively low-power circuits. It also does not provide time delay, programmable schedules or remote control features; installations requiring complex timing, dimming or integration with smart home systems will need a different device.

Key specifications

• Operating voltage: 230 V AC
• Maximum switching current: 16 A (single pole)
• Light sensitivity range: 2–50 lux
• Contact configuration: single pole (1Z)
• Degree of protection: IP65 (dust tight and protected against water jets)
• Typical application: outdoor and damp locations

How to use

Install the ETS-16b so that the light sensor has an unobstructed view of ambient light, away from direct illumination of the controlled fixtures to avoid false readings. Connect the supply and load according to the single-pole wiring diagram provided by the manufacturer, ensuring correct phase and neutral connections and adherence to local electrical codes. After powering, adjust placement rather than the device to achieve reliable switching at the desired natural light threshold within the 2–50 lx range.

What to consider before purchase

• Required switching current for the lighting circuit must not exceed 16 A.
• Device provides single-pole switching—verify suitability for the circuit configuration.
• Check that dusk-to-dawn control (2–50 lx sensitivity) meets your desired on/off brightness thresholds.
• Confirm outdoor mounting location provides a clear view of ambient light and is compatible with IP65 protection.

Usage recommendations

For reliable operation, mount the photocell where it measures ambient sky brightness without interference from the lights it controls. Periodically check for dirt or paint on the sensor window and clean gently to maintain correct lux sensing. For installations requiring advanced scheduling, dimming, or integration with building automation, consider pairing the ETS-16b with appropriate control equipment or selecting a programmable alternative.