8481-H
Longlife Photocells
The most accurate hardwired photocell on the market
Accuracy
The 8481-H Westire photocell utilises Westire’s Eye Response filtered silicon light sensor and microprocessor control. This accurate combination provides the best energy savings and reliable operation.
Longevity
Engineered, in the EU with a 35 year design life and manufactured in-house using only high quality name brand components, the 8400 series photocells are renowned in the industry for their unparalleled quality and reliability.
Features & Benefits
- Conduit mounting thus no need for ANSI/NEMA socket or receptacle.
- Can be used in place of 20 mm lighting controls.
- Designed for modern light sources like LED, Induction, Plasma, HPS, HID and many more.
- Available in universal power supply capable of operating on voltages from 105 to 305 Volts 50/60 Hz.
- Westire Patented Relay Assisted Triac (RAT) switching technology protects the relay from in-rush current.
- Polycarbonate housing is ultrasonically welded, UV stabilised and rated to IP67.
- Upward facing units are designed to be self cleaning.
- 100% product testing, 48 hour burn-in, electrical and final inspection.
- Energy efficient design with an average power consumption < 0.25 watts.
- Intertek ETL Listed and RoHS compliant.
- Available with up to 840 Joule MOV protection.
The upward facing sensor has a 67% view of the sky resulting in higher switching accuracy!
Cap Colours
Various housing colours are available, black, blue, brown, green, red and grey
Connection Type
The 8481-H Long Life Photocell has a hard-wired 3 cable flying lead connection with an M20 threaded mounting secured by locknuts and gaskets.
Specification
| Dimensions | 3.1” Ø x 2.75” H | |||
| Warranty | 12 years standard 20 years available on request | |||
| Mains Supply | 105 - 305 Volts AC 50/60 Hertz | |||
| Average Power Consumption | <0.25 Watt nominal | |||
| Surge Protection | Standard: 132J 4.5kA Optional: 320J 12KA, 420J 20KA Configurations available up to 840 Joules | |||
| Operating Temperature | -40° C to + 80° C -40° F to +178° F | |||
| Standards Compliance | Environmental RoHS, EN55015, EN61547, EN6100-3-2, EN6100-3-3, ETL UK 773, CSA 22.2. IS EN ISO 9002: 2015 ANSI C136.10 | |||
| Enclosure Protection Rating | IP67 - Dust tight and immersion tested up to 1m when fitted in the luminaire. | |||
| Operating Levels | 10 - 200 Lux 1 to 19 fc ± 0.025 | |||
| Switching Ratio | 1:0.5 to 1:3 Inverse ratios available | |||
| Light sensor | Eye Response IR filtered silicon light sensor | |||
| Switching Time Delay | 0 to 25 Seconds ON 2.5 to 20 Seconds OFF | |||
| Connection Type | Hard-wired 3 cable flying lead connection with M20 threaded mounting secured by locknuts and gaskets. |