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MBT-1 Municipal Box Trip - Silenceable
C.1 MBT-1 Municipal Box Trip - Silenceable
The following figure illustrates the connection of the MBT-1 (Municipal Box Trip) between the FACP and a Local Energy Municipal
Box. The use of an addressable control module programmed for General Alarm and Silenceable allows silencing of the Municipal Box
without resetting the panel or box.
The addressable Control Module must be programmed
as Silenceable and General Alarm.
-
*If the SLC device does not match the one in this figure, refer to the FireWarden SLC manual wiring conver-
sion charts for legacy and newer versions of the modules.
NFW-50X Manual — P/N LS10129-001NF-E:C 7/25/2018
NC-100/FCM-1
Control Module*
Alarm polarity shown!
+
T11
T10
T1
T9
T2
T8
T3
T7
T4
T6
T5
ALRM
TRBL
SUPV
RMT SYNC
NAC1
NO
NC
C
NO
NC
C
NO
NC
C
OUT+
RTN+
RTN- OUT-
FACP Main Circuit Board
Figure C.4 MBT-1 Silenceable
Note: 10Ω maximum loop
resistance due to wiring from
power supply to Municipal Box.
- To next device
+ on SLC Loop
24 VDC, Nonresettable
NAC2
ANN-BUS PRI
NFPA Standard-Specific Requirements
Connect wires to two
red terminals on box.
Gamewell Model M34-56
Local Energy Municipal Box
(All contacts shown in energized position).
white wire
MBT-1
brown wire
EOLR-1 Power
Supervision Relay
+
-
+
-
B
B
ANN-BUS SEC
24V
SLC
SLC Loop
FIRE
red
black
137
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