The Edwards 51R-G5-20W is a 51 Series red flashing light with a base-mounted horn. First, it is an industrial signaling beacon, not a fire alarm appliance. Specifically, the synchronized horn and light combine in a single base-mount housing for indoor or outdoor use.
Where the Edwards 51R-G5-20W fits
This beacon is part of the Edwards 51 Series industrial signaling family. Therefore, plant maintenance and process engineers use it for machine alarms, status indication, and general signaling. In addition, PLC-driven applications integrate it directly into control logic. As a result, it serves manufacturing, transportation, and utility installations where high-visibility signaling matters.
Construction
The unit uses a 6-inch double fresnel red lens made of shatter-resistant polycarbonate. Then, an integrated horn mounts in the base and synchronizes with the flashing lamp. Also, the housing is rated for indoor or outdoor installation.
Verified specifications
- Lamp: 20 W incandescent
- Voltage: 24 VAC, 50/60 Hz
- Current: 1.1 A
- Light output: 402 lumens, approximately 5,049 effective candlepower
- Lamp life: approximately 3,180 hours
- Horn output: 85 dB at 10 ft, base mounted
- Lens: 6-inch double fresnel, red, polycarbonate
- Environment: indoor or outdoor installation
- PLC compatible
Verified agency listings
- UL 1638 Listed (visual signaling appliances — general use)
What this beacon is not
Critically, this is an industrial signaling beacon, not a fire alarm strobe. Therefore, it is not UL 1971 listed for emergency notification and does not support ADA-compliant fire-alarm installations. For fire alarm strobe coverage, specify a UL 1971–listed device such as the Edwards Genesis or 757 series.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 2 lbs |
|---|---|
| Dimensions | 8.25 × 7 × 7 in |
| Condition | New |
| Manufacturers | Edwards |
| Part Type | Replacement Part |







