43
Wire Ampacity Rating
The load current rating and the over-current protection for conductor types shall not exceed 15 amperes for 14
AWG, 20 amperes for 12 AWG, and 30 amperes for 10 AWG aluminum and copper-clad aluminum after any
correction factors for ambient temperature and number of conductors have been applied. Refer to Table 10.
Distance Limitations
Wiring connections to remote fire protection system(s) must use shielded twisted pair wire. The maximum length of
this connection is 1000 feet.
Wire size is an important consideration when making the connections between the fire protection system control
package and a gas valve. Refer to Table 11 for maximum wiring distance between the system and remote gas
valve.
Fire Alarm Contacts
The fire protection system is equipped with optional normally open contacts (terminals AL1 and AL2) for building
applications that connect to the premise Fire Alarm Control Panel (FACP). Refer to Figure 41 for wiring reference.
During a fire condition, the contacts will close and trigger the premise FACP to initiate a general fire alarm.
Figure 41 - Fire Alarm Reference
Table 10 - Copper Wire Ampacity @ 75°C
Wire Size AWG Maximum Amps
14 15
12 20
10 30
850
665
485
Table 11 - Wiring Maximum Distance
Wire Gauge Distance (Feet)
12 1049
14 660
16 414
18 260
20 164
22 103
24 64
1. Building Fire Alarm
2. Control Panel Fire Alarm Contact
3. End of Line Device
4. Alarm Input
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