System Sensor 3G-OTH-546835 — Technical Specifications
The SYSTEM SENSOR D4120 is a duct-mount smoke detector for fire alarm systems, featuring a photoelectric sensor and sound alert. It operates on 24V AC/DC or 120V AC with a current rating of 25 mA @ 24V DC, is FM-approved, and has a 5-inch overall height. 3G Electric interprets your demand for this hardwired, rectangular detector and delivers it with specialist support across 14 industrial departments.
Technical Specifications
| Parameter | Value |
|---|---|
| Type | Sound Alert, Duct Mount |
| Brand | SYSTEM SENSOR |
| Shape | Rectangular |
| Detects | Smoke |
| Standards | FM |
| Alert Type | Sound |
| Overall Ht | 5 in |
| Sensor Type | Photoelectric |
| Power Source | Hardwired |
| Current Rating | 25 mA @ 24V DC |
| Voltage Rating | 24V AC/DC |
| Mounting Location | Duct |
| Manufacturer Part Number | D4120 |