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Mini Photocell with threaded light sensor, mounting nut and three flying leadsEnlarge image

Traffic electronics

Mini photocell for traffic applications

Our mini photocell is a compact, wire-in controller that switches a connected load in response to ambient light. It gives manufacturers a straightforward way to add dusk-to-dawn operation to illuminated signs, street furniture and other electronic equipment.

The threaded sensor mounts through the equipment panel, while the compact controller body sits inside the enclosure. A mounting nut, gasket and three flying leads are supplied. The specifications shown here apply to the 230 V AC version.

Key features

Compact panel mounting

G3/8 threaded sensor with a supplied mounting nut and gasket. The body measures approximately 52 x 28.5 x 23 mm.

Automatic dusk-to-dawn switching

Typical turn-on level of 10–16 lux, with a typical turn-off ratio of 1:1.5 and an included time delay.

Switched AC output

Three-wire connection for supply live, neutral and switched live to the load, with zero-cross switching.

Options for your equipment

Custom lux levels, wire colours, lead lengths, terminations and OEM branding are available on request.

Technical specifications

Product specifications and configuration options for your equipment.

Download datasheet · PDF, 2.6 MB
Mini photocell for traffic applications — published product information
Version described230 V AC
Nominal supply systems120–277 V AC
Operating voltage105–305 V AC
Supply frequency50/60 Hz
Turn-on level10–16 lux typical
Turn-off ratio1:1.5 typical
Time delayIncluded
Rated load1000 W / 1800 VA maximum, subject to load type and the applicable current limit
Electronic ballast current rating5 A
SwitchingZero-cross
Operating temperature-40 to +70 °C
Power consumption≤0.7 W at 120 V AC
SensorIR-filtered phototransistor
Standard leads18 AWG, approximately 160 mm
Mounting threadG3/8
Mounting holeØ18.0 ±1 mm
Body dimensionsApproximately 52 mm high x 28.5 mm wide x 23 mm deep
Overall depth45 mm including the threaded sensor section
Supplied fittingsMounting nut and gasket

Mechanical drawing and connections

Mechanical drawing: 52 mm body height, 28.5 mm width, 23 mm body depth, 45 mm overall depth, G3/8 thread and an 18 mm plus or minus 1 mm mounting hole.
Mini photocell mechanical dimensions and panel mounting detail. All dimensions are in millimetres. Download drawing image

Standard lead colours

Mini Photocell — 230 V AC version
LeadConnection
RedLoad - switched live
BlackLine - supply live
WhiteNeutral

Designing it into your equipment

These are the standard lead colours. Customised units are supplied with the wiring schedule for their specified configuration.

The output is a switched AC live. We can support load matching, electrical protection and enclosure integration for your equipment.

These lead functions apply to the mini photocell. Other controllers and customised versions have their own wiring schedules.

Suggested traffic applications

Illuminated traffic and information signs

Switch suitable sign lighting on as daylight falls and off when ambient light returns.

Illuminated bollards and street furniture

Build automatic lighting control into a suitable housing without adding a separate external controller.

Signage and lighting enclosures

Add a small panel-mounted sensor to new equipment or an appropriate retrofit design.

Light-dependent control functions

Provide a dusk-to-dawn trigger for equipment through a suitably rated load or control interface.

Integration and available options

The threaded sensor and compact controller body are designed for integration into signs, street furniture and roadside lighting enclosures. We can help with panel mounting, sensor positioning and the internal space needed for the controller and connections.

Our technical support covers supply and load matching, including running current, inrush and start-up behaviour. The voltage, current, wattage and VA limits apply together; the quoted power ratings do not override the 5 A current limit.

The 230 V AC version provides a switched-live output for compatible lighting loads. We can review interface requirements where the output needs to connect to a separate control circuit. It is an on/off controller, not a dimming output, a direct low-voltage sensor input or a traffic-signal safety controller.

We can support the enclosure, electrical protection and connection arrangements for the intended application. Traffic-signal safety functions and any illumination required for safe operation remain independent of this dusk-to-dawn switching function.

Options and customisation

Custom lux levels, wire colours, lead lengths, terminations and OEM branding are available on request.

We can work with your supply, load and enclosure requirements to develop a suitable configuration for your equipment. Get in touch to discuss the options and request a quote.

Discuss your equipment with us

Tell us about the supply, interfaces and enclosure your project needs.

Enquire about the mini photocell

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