The 5600 Series mechanical
heat detectors offers a low cost means for property against
fire and for non life-safety installations where smoke detectors
are inappropriate. To accommodate a broad range of applications,
the 5600 Series is available in a full line of configurations.
Single and dual-circuit model are available with low or high
temperature ratings and with fixed temperature or combination
fixed temperature/rate-of-rise (ROR) activation.
Model
No.
Circuit
Identification
Method on Exterior
Temperature
Rating
Activation
Method
Protected
Spacing**
5603
Single
Lettering
135°F
Fixed temperature
25 feet by 25 feet
5604
Single
Lettering
194°F
Fixed temperature
25 feet by 25 feet
5621
Dual
Lettering
135°F
Fixed/Rate-of-rise
50 feet by 50 feet
**
Refer to NFPA 72 guidelines for spacing reduction when ceiling
height exceed 10 feet.