The Simplex 2098-9737 is a DPDT auxiliary relay module rated 3 A for fire alarm control applications. First, it provides two sets of dry contacts that switch on alarm. As a result, the relay can drive external loads such as HVAC shutdown, door release, fan control, or auxiliary notification circuits.
Specifically, the relay uses a Double Pole Double Throw contact arrangement. In addition, it carries a 3 A rating at 28 VDC (power-limited, with external 24 VDC) and a UL-listed 3 A at 120 VAC (non-power-limited) for transient-suppressed loads.
Where the Simplex 2098-9737 fits
The 2098-9737 mounts either remotely in an electrical box or directly in a compatible Simplex sensor base electrical box. Then a host Simplex fire alarm control panel drives the relay through the field wiring.
Typical applications include HVAC fan shutdown, magnetic door holder release, and elevator recall interface. However, contacts only — this is a relay, not a smart addressable input. As a result, the host panel performs the actual logic and reporting.
Key features
- DPDT contact configuration — two independent Form C contacts
- 3 A @ 28 VDC power-limited (requires external 24 VDC supply)
- 3 A @ 120 VAC non-power-limited (UL listed) for transient-suppressed loads
- Mounts remotely or in a Simplex sensor base electrical box
- Genuine Simplex / Johnson Controls OEM auxiliary relay
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.3 lbs |
|---|---|
| Dimensions | 2.3 × 2.2 × 4.8 in |
| Condition | New |
| Manufacturers | Simplex |
| Part Type | Replacement Part |







