The Edwards 757-1A-R25 is a re-entrant fire alarm speaker in a red housing. First, it operates on a 25-volt audio circuit. Importantly, it is a speaker-only appliance with no strobe. As a result, it delivers voice and tone signals during an emergency.
Edwards 757-1A-R25 audio design
The re-entrant horn design projects sound efficiently. Therefore, it carries clearly across large or noisy spaces. In addition, it suits schools, offices, healthcare sites, and industrial buildings. As a result, designers gain reliable audible coverage on a 25 V riser.
Circuit supervision
A built-in capacitor blocks DC on the audio line. Then the panel can electrically supervise the speaker circuit. As a result, the riser stays properly monitored for faults.
Application notes
This speaker provides audio output only. However, it does not provide UL 1971 visible notification on its own. Therefore, pair it with a strobe appliance where visible coverage is required.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 3 lbs |
|---|---|
| Dimensions | 6 × 6 × 4 in |
| Condition | New |
| Manufacturers | Edwards |
| Part Type | Speaker |
