A four-wire smoke and heat detector with a built-in sounder.
What it does
The 4WTA-B is a System Sensor i3 series four-wire photoelectric smoke detector with a thermal sensor and a sounder. It runs on 12/24 V DC and has a removable cover and chamber and built-in remote maintenance signaling.
Works with
Four-wire smoke detectors need a separate power supervision relay (such as an RRS-MOD or similar) and can go on any zone. They work on the Vista-20P, the VISTA H3 and most 12 V hardwired panels; check the panel manual for the zone type. Pair with an RRS-MOD to sound every sounder on the loop together.
Why you want it
The built-in sounder alarms in the room where smoke is detected.
Specifications
| Works with panels | Any hardwired alarm panel (Vista-15P, Vista-20P, VISTA H3 and others) |
|---|---|
| Series | i3 |
| Wiring | 4-wire |
| Voltage | 12/24 VDC |
| Sensing | Photoelectric and thermal |
| Sounder | Built in |






