Acro North Facing
WESTIRE ACRO SERIES
Engineered for today’s demanding applications

Accuracy
The Acro NEMA North Facing photocell utilises a filtered silicon based ambient light sensor and microprocessor control. This accurate combination provides the best energy savings and reliable operation.
Longevity
Engineered in the EU with a 15 year design life and manufactured in-house using only high quality name brand components, the Acro series photocells are renowned in the industry for their unparalleled quality and reliability.
Our attention to long-term photocell accuracy and ambient light sensor selection guarantees peace of mind to our customers.
Features & Benefits
- Electronic design outperforms thermal controls.
- Designed to meet the needs of LED fixtures while still maintaining proven reliability for more traditional technologies.
- Energy efficient design with a average power consumption <0.25 watts.
- Low Profile enclosure.
- A 48 hour operational burn-in test is performed on every unit before leaving the factory.
- ROHS compliant.
- UV stabilised polycarbonate housing is rated and tested to IP 65.

Technical Specification
Dimensions | 86.3 mm Ø x 53.34 mm H 3.4” Ø x 2.1” H |
Receptacle Compatibility | ANSI C136.10 / ANSI C136.41 |
Warranty | 8 years |
Mains Supply Voltage | 105 - 135 Volts AC 50/60 Hz |
Power Supply Consumption | Less than 0.25 Watt |
Max Load | 10 Amps |
Surge Protection | 132J standard 320J optional |
Load Rating | 1800 VA Ballast / 1000 Watts |
Operating Temperature | -20° C to +70° C -4° F to +158° F |
Enclosure Protection Rating | IP65 (When Installed) |
Standards Compliance | Environmental RoSH, EN55015, EN61547, EN6100-3-2, EN6100-3-3, ETL UK 773, CSA 22.2. IS EN ISO 9002: 2015 ANSI C136.10 |
Switch 'On' light levels | 10 to 200 Lux ± 0.025 1 to 18.5 fc ± 0.025 |
Switching Ratio | 1:0.5 to 1:1.5 |
Ambient Light Sensor | Color corrected photodiode + amplifier |
Switching Time Delay | 25 Seconds or as specified |
Switching Options | Dusk to Dawn. Part night option available. |