RLD-3
Dimming Photocells
The photocell that upgrades your older LED luminaires by providing power to the DALI bus when the LED driver cannot.
Accuracy
The Westire RLD-3 utilises a precision ambient light sensor combined with microprocessor control to ensure accurate switching and dimming. This intelligent design delivers consistent dusk-to-dawn operation, maximises energy savings, and provides reliable long-term performance across varied outdoor conditions
Longevity
Engineered in Ireland with a 15-year design life and manufactured in-house using top-tier components, the RLD-3 combines IP68 sealing, IK09 impact protection, and robust surge protection to ensure reliable long-term performance. Backed by a standard 6-year warranty with optional 10-year plans, it is built for durability in the most demanding outdoor environments
We pay more attention than any other photocell designer to the sky’s blue and red zones to ensure negligible sensitivity to infra-red and ultra-violet radiation.
Features & Benefits
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Scheduled Dimming for Cost Savings – Reduces energy use and lowers operational costs
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No Need to Open the Installed Luminaire Canopy – Avoids disturbing the fixture or replacing existing DALI drivers
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Retrofit-Friendly with Energy Savings – Simple upgrade with significant energy reduction
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Factory-Programmed Schedules – Part-night, on/off, and dimming set to your spec
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Advanced Solar Time Clock Control – Precise dimming via Westire’s latest algorithms
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Over-voltage Protection – Shields LED driver and light engine from power spikes
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Extends LED System Life – Helps maximise LED driver and engine lifespan
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Self-Correcting Dimming and Part-Night Function – Maintains consistent performance
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Irish-Built Quality – Engineered, assembled, and tested in Ireland
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Top-Tier Components – Built using the world’s leading electronic materials
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Supports Circular Economy – Promotes reuse and extends asset lifespan
Technical Specification
| Dimensions | 78.4mm D x 69.8mm H 3.1” D x 2.3” H |
| Connection Type | NEMA 3,5 & 7 pin, ANSI 136.10 |
| Warranty | 6 years. 10 years warranty option plans available |
| Mains Supply | 105 - 264 V AC, 50/60 Hz |
| Surge Protection | 320 Joule MOV (Metal Oxide Varistor). Optional 420 Joule MOV |
| Maximum Load Current (A) | 10 A |
| Average Power Consumption | 500mW |
| Load Rating | 1.8 kVA |
| Temperature Rating | -30° C to +70° C |
| IP Rating | IP68 |
| Enclosure Impact | IK09 |
| Standards Compliance | Manufactured to: IS EN ISO 9001:2015 Designed to: EN 55015, EN 61547, EN 61000 3-3, RoHS, ANSI C136.10, BS5972 |
| Communications | DALI |
| Switching Options | Dusk to Dawn. Multiple options available or as requested. |
| Dimming Options | Multiple options from 0–100% or as requested |
| Light Level Switching | 35 lux ON / 18 lux OFF as standard, others on request |
| Time Reference Stabilization | < 3 days |