FUSE OR CIRCUIT BREAKER
RED
BLACK
WHITE
CONNECTOR
First
Alarm
Additional
Alarm
Kidde
Relay Module
SM120X
Optional Accessory
BLACK
WHITE
RED
CONNECTOR
Additional
Alarm
WIRES ON ALARM HARNESS
CONNECTED TO
Black
Hot side of AC line
White
Neutral side of AC line
Red
Interconnect lines (red wires) of
other units in the multiple station setup
• The appropriate power source is 120 Volt AC Single Phase supplied
from a non-switchable circuit which is not protected by a ground fault
interrupter.
•
WARNING:
This alarm cannot be operated from power derived from
a square wave, modified square wave or modified sine wave inverters.
These types of inverters are sometimes used to supply power to the
structure in off grid installations, such as solar or wind derived power
sources. These power sources produce high peak voltages that will
damage the alarm.
3. Installation Instructions
Wiring Instructions for Quick Connect Harness
CAUTION! Turn off the main power circuit before wiring
the alarm
• When alarms are interconnected, all interconnected units must be
powered from a single circuit.
• A maximum of 24 Kidde devices may be
interconnected in a multiple station
arrangement. The interconnect system should
not exceed the NFPA interconnect limit of 12
smoke alarms and/or 18 alarms total (smoke,
heat, carbon monoxide, or similar alarms).
With 18 alarms interconnected, it is still
possible to interconnect up to a total of
6 remote signaling devices and/or relay modules.
IMAGE 4
Mounting Holes for 3 1/2”
spacing round ceiling boxes.
Mounting Holes for
2-gang electrical boxes.
IMAGE 5
