Mircom FA-300 Series Installation Manual Page 32

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Field wiring
24
Polarity Reversal and City Tie Module (PR-300) Wiring
Wire PR-300 Polarity Reversal and City Tie Module (if used) as shown in Figure 19, below. See Appendix A for
module specifications. Power Limited cable type FPL, FPLR or FPLP must be used.
For USA installation, the installer must use Atlantic Scientific (Tel: 407-725-8000), Model #24544 Protective
Device, or similar UL-Listed QVRG secondary protector, as shown.
Figure 21: Polarity reversal and city tie module terminal connection
Power supply connection
The power supply is part of the Main Chassis. The ratings are:
Wire as shown below in Figure 20 using the proper wire gauge. See Appendix A for power supply specifications.
Type Rating
Electrical Input rating 120VAC, 60Hz, 3A\ 240 VAC, 50 Hz, 1.5A main primary circuit breaker
Power supply total current 6A maximum
Battery fuse on Main module 10A Fuse, slow blow micro fuse
CAUTION: Do not exceed power supply ratings.
1
1
2
2
S
S
CITY TIE LOCAL ENERGY
RATED - 24VDC FILTERED
TRIP COIL - 14 Ohms, 250mA,
5mV RIPPLE
POLARITY REVERSAL ALARM
24VDC OPEN
12VDC AT 3.5mA
8mA MAX. SHORT
POLARITY REVERSAL SUPV.
24VDC OPEN
12VDC AT 3.5mA
8mA MAX. SHORT
PROTECTOR
1
1
2
2
S
S
1
1
2
2
S
S
PROCTECTOR
1
1
2
2
S
S
USE A SHORTING WIRE
WHEN THE CITY TIE IS
NOT USED
+
+
+
-
-
-
+
+
+
-
-
-
CONFIRMS TO NEMA STANDARD
SB3-1969 INTENDED FOR
CONNECTION TO POLARITY
REVERSAL CIRCUIT OF A REMOTE
STATION RECEIVING UNIT HAVING
COMPATIBLE RATINGS
DIN RAIL CONNECTION
TO EARTH GROUND
DIN RAIL CONNECTION
TO EARTH GROUND
POWER LIMITED
POWER LIMITED
POWER LIMITED
PR-300
PROCTECTEDPROCTECTED
UNPROCTECTEDUNPROCTECTED
POWER LIMITED CABLE TYPE
FPL, FPLR or FPLP MUST BE
USED FROM PR-300 TO
PROTECTORS.
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