System Sensor 5603 is a 135°F fixed temperature, single-circuit mechanical heat detector from the 5600 series. It is a low-cost means of property protection against fire.
The 5600 series offers single- and dual-circuit models for low and high temperature ratings, with either fixed temperature or combination fixed temperature/rate-of-rise activation. The 5603 is a fixed temperature model, marked FX on the housing; combination units are marked FX/ROR. Clear markings show the activation method and the temperature rating in Fahrenheit and Celsius. When the detector activates, a collector drops from the unit, making the detector in alarm easy to identify.
Specifications
| Model |
5603 |
| Circuit |
Single |
| Activation |
Fixed temperature |
| Temperature rating |
135°F (57°C) |
| Spacing |
25 ft x 25 ft (7.62 m x 7.62 m), for a 10 ft ceiling |
| Contact rating |
6-125 VAC at 3 A; 6-28 VDC at 1 A; 125 VDC at 0.3 A; 250 VDC at 0.1 A |
| Size |
4.57 in diameter, 1.69 in high with mounting bracket |
| Maximum installation temperature |
100°F (38°C) |
| Standard |
UL 521 for heat detectors for fire protective signaling systems |
Installation
- Mounts to 3 1/2 in and 4 in octagonal, and single-gang back boxes.
- A 4 in square back box also works with a square-to-round plaster ring.
- The reversible mounting bracket allows both flush and surface-mount installations.
Choosing the right 5600 series model
The 5603 is fixed temperature only, so it does not respond to rate of rise. For 50 ft x 50 ft protected spacing on a 10 ft ceiling, System Sensor's combination fixed/rate-of-rise 135°F single-circuit model is the 5601P. The 5604 is the 194°F fixed temperature equivalent of the 5603, and the 5623 is the dual-circuit 135°F fixed temperature model.
Specifications are taken from the System Sensor 5600 Series Mechanical Heat Detectors data sheet. Manufacturer specifications are subject to change without notice.
