Twilight relay | photo relay for lighting control | AC 24–264 V | 16A | 1NO | for street, yard and outdoor lighting

Technical specifications

Product type: twilight relay / photo relay / photocell relay
Purpose: automatic lighting control according to ambient light
Supply voltage: AC 24–264 V
Frequency: 50/60 Hz
Output contact: 1NO
Current load: 16A / AC1
Contact load: high power
Operating principle: photocell relay
Construction: sealed
Color: white
Application area: electronic equipment, lighting control systems, protective control solutions

Functions

Automatic lighting switch-on at dusk – the relay reacts to reduced ambient light and automatically switches on the connected luminaires.
Automatic lighting switch-off at dawn – when natural light increases, the relay switches off the luminaires so that they do not operate unnecessarily.
Photocell-based operation – the device uses a light sensor that detects the ambient light level.
Wide supply voltage range – operates with AC 24–264 V, therefore it is suitable for various lighting control systems.
1NO output contact – has one normally open contact, which closes when the relay is activated and switches on the circuit.
16A / AC1 contact load – can control a lighting load up to 16A according to AC1 category.
Suitable for outdoor lighting automation – can be used for yard, façade, street, pathway, parking area or territory lighting.
Energy saving – lighting operates only when needed, reducing unnecessary electricity consumption.
Sealed construction – helps protect internal components from environmental impact.

Use

For household users: Suitable for automating yard, garage, garden, driveway or façade lighting. The relay switches the light on at dusk and off at dawn, so there is no need to control the lighting manually.

For electricians: A convenient solution for installing automated outdoor lighting in residential, commercial or agricultural facilities. It can be used for direct luminaire control or as a signal for a contactor.

For engineers / designers: Suitable for designing simple lighting automation systems where control according to ambient light level is required. Relevant for territory, parking area, pathway, façade and street lighting solutions.

For commercial / industrial users: Used in warehouses, production areas, car parks, loading zones and secured areas where lighting must operate automatically according to daylight.

Advantages

Automatically controls lighting according to ambient light
Helps reduce electricity consumption
Convenient to use, as manual switching on and off is not required
Wide supply voltage range: AC 24–264 V
Suitable for various lighting control systems

Disadvantages

Does not have advanced programming functions, therefore it is not suitable for advanced smart systems where scheduling, WiFi or remote control is required.
When used with larger groups of luminaires, an additional contactor may be required.

FAQ

What is this twilight relay intended for?
This relay is intended for automatic lighting control according to the ambient light level. It can switch the lighting on at dusk and off at dawn.

Is this relay suitable for outdoor lighting?
Yes, it can be used for outdoor lighting control, for example yard, street, façade, parking area or driveway lighting. However, when installing outdoors, protection against moisture, dust and mechanical impact must be evaluated. If the relay is installed in an open area, it is recommended to use a suitable protective enclosure.

Can a 16A load be connected directly?
The relay contact load is specified as 16A / AC1, but the actual permissible load depends on the type of connected luminaires. LED luminaires may have a higher inrush current, therefore for larger lighting groups it is recommended to use the relay as a control signal for a contactor.

What is the supply voltage of this relay?
The relay supports a wide supply voltage range – AC 24–264 V, therefore it can be used in various lighting control systems.