1. Alarms generated by the actuation of the activating lever may
not be received by a central station if telephone or other com-
munication lines to the detector are out of service, disabled,
or open.
2. Supervisory switch alarm devices have a normal service life of
10-15 years.
WARNING
The Limitations of Supervisory Switch Alarm Devices
3. Supervisory switches are not a substitute for insurance.
Building owners should always insure property and lives
being protected.
W0223-00
Figure 4. Supervisory switch wiring diagram:
TOP VIEW
SWITCH 1
CO
M
CO
M
A
B
B
A
SWITCH 2
CONTACT RATINGS
125/250 VAC
24 VDC
10 AMPS
2.5 AMPS
SUP. SWITCH
B
B
COM
COM
SUP. SWITCH
B
B
COM
COM
TYPICAL FACP CONNECTION
TO NONSILENCEABLE
INITIATING ZONE
OF LISTED FACP
END-OF-LINE
RESISTOR
B
COM
TO POWER
SOURCE
COMPATIBLE
WITH BELL
LOCAL
BELL
TYPICAL LOCAL BELL CONNECTION
BREAK WIRE AS SHOWN FOR SUPERVISION
OF CONNECTION. DO NOT ALLOW STRIPPED
WIRE LEADS TO EXTEND BEYOND SWITCH
HOUSING. DO NOT LOOP WIRES.
STRIP GAUGE
NOTE: COMMON AND B CONNECTIONS
WILL CLOSE WHEN VALVE MOVES
1
/
5
OF
ITS TOTAL TRAVEL DISTANCE.
WARNING: High Voltage. Electrocution Hazard.
Do not handle live AC wiring or work on a device to which AC power is
applied. Doing so may result in severe injury or death.
When utilizing switches at voltages greater than 74 VDC
or 49 VAC
, means to provide all-pole disocnnec-
tion must be incorporated in the field wiring, such as a circuit breaker.
THREE-YEAR LIMITED WARRANTY
SAFE SIGNAL warrants that the equipment herein shall conform to said descriptions as to all af-
firmation of fact and shall be free from defects of manufacture, labeling, and packaging for a pe-
riod of three (3) years from the invoice date to the original purchaser, provided that representative
samples are returned to SAFE SIGNAL for inspection. Upon a determination by SAFE SIGNAL
that a product is not as warranted, SAFE SIGNAL shall, at its exclusive option, replace or repair
said defective product or parts thereof at its own expense except that Purchaser shall pay all
shipping, insurance, and similar charges incurred in connection with the replacement of the
defective product or parts thereof. This Warranty is void in the case of abuse, misuse, abnormal
usage, faulty installation, or repair by unauthorized persons, or if for any other reason SAFE
SIGNAL determines that said product is not operating properly as a result of causes other than
defective manufacture, labeling, or packaging.
4
I56-0393-J
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