The Simplex 4081-9004 is a 6.8K ohm, 1/2 watt end-of-line resistor for Simplex fire alarm circuits. It installs at the far end of a supervised circuit. As a result, the control panel can monitor that circuit for faults.
How the Simplex 4081-9004 works
A supervised circuit carries a small monitoring current through the resistor. The panel reads that current as normal. However, an open or short changes the current. Therefore, the panel reports a trouble or alarm state.
Specifications and use
The resistance value is 6.8K ohms. The power rating is 1/2 watt. Specifically, the value must match the supervision requirement of the circuit it terminates. Also, confirm the correct end-of-line value for your panel before installation.
For more information, contact the Life Safety Consultants team at 1-888-557-0558, or email us at sales@lifesafetycom.com.
Additional information
| Weight | 0.5 lbs |
|---|---|
| Dimensions | 4 × 2 × 0.5 in |
| Condition | New |
| Manufacturers | Simplex |
| Part Type | Replacement Part |







