The Simplex 4903-9254 is a horizontal wall-mount combination horn and strobe notification appliance. It delivers a 110 candela xenon strobe output paired with a 24 VDC electronic horn. The housing is red. The catalog number is 0626862.
First, the 4903-9254 operates on a regulated 24 VDC NAC (16–33 VDC range). Then the horn and strobe can be wired together on one circuit or split across two using on-board jumpers. As a result, the appliance fits both single-NAC and split-audio/visual designs.
In addition, the strobe supports both free-run and synchronized operation. Therefore, it works with Simplex SmartSync and 4005-9938-type sync modules. The selection is made with a switch on the appliance.
Key Features of the Simplex 4903-9254
- 110 candela xenon strobe; UL listed to Standard 1971
- Electronic horn output 84.8 dBA @ 33 VDC, 80.6 dBA @ 16 VDC
- Horn sweep 2400–3700 Hz at 120 Hz rate
- Operating voltage 16–33 VDC (regulated 24 VDC)
- Horn current 13–16 mA
- Strobe current at 110 cd: 285 mA @ 18 VDC; 190 mA @ 24 VDC (max RMS)
- Switch-selectable free-run or synchronized strobe operation
- Horn and strobe wireable to same or separate NACs via jumpers
- Red housing; horizontal wall mount
- Housing dimensions 4-3/4″ × 6-7/8″ × 2-5/8″ D; 11/16″ depth into box
- Terminals accept 18–12 AWG wire
- Operating temperature 32°–120°F (0°–49°C)
- Catalog number 0626862; data sheet S4903-0005
Panel Compatibility
The 4903-9254 is compatible with Simplex 4006, 4008, 4100U, and 4010 fire alarm control panels. Furthermore, it pairs with the 4009 IDNet NAC Extender (4009-9201, 4009-9301) for synchronized operation. Also, it can be synchronized by 4905-9914 (Class B) or 4905-9922 (Class A) flash modules.
Direct Replacements
The 4903-9254 directly replaces the Simplex 4903-9217 (110 CD horizontal) and the Simplex 4903-9238 (110 CD horizontal). Therefore, it drops into existing notification circuits without re-engineering NAC current draw.
Order the Simplex 4903-9254
Life Safety Consultants has stocked Simplex notification appliances since 2002. To order the 4903-9254, call 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 4 lbs |
|---|---|
| Dimensions | 4.75 × 7 × 2.5 in |
| Part Type | Horn Strobe, Mount, Strobes |
| Manufacturers | Simplex |
| Compatible Panels | Simplex 4006, 4008, 4100U, 4010, Simplex 4009 IDNet NAC Extender (4009-9201, 4009-9301) |
| Cross Reference | 4903-9217, 4903-9238, 4903-9252, 49039254, 626862, 0626862 |
| Specification | 110 cd xenon strobe, 24 VDC nominal (16-33 VDC), horn 84.8 dBA @ 33 VDC, 2400-3700 Hz sweep, red housing, horizontal wall mount, 4-3/4 x 6-7/8 x 2-5/8 in, 32-120 deg F |
