MS-5UD & MS-10UD Series Manual — P/N 52626:C2 1/24/2012 29
Operating Power Installation
may be connected to this circuit. In addition, this circuit must be provided with overcurrent protec-
tion and may not contain any power disconnect devices. An Earth Ground connection must be
made to ensure proper panel operation and lightning and transient protection. Connect the Earth
Ground wire [minimum 14 AWG (2.00 mm
2
)] to the grounding stud in the backbox and then run
the wire to TB1. Do not use conduit for the Earth Ground connection since this does not provide
reliable protection.
Secondary Power Source (Batteries)
Observe polarity when connecting the battery. Connect the battery cable to J12 on the main circuit
board using the plug-in connector and cable provided. The battery charger is current-limited and
capable of charging sealed lead acid batteries. The charger shuts off when the system is in alarm.
WARNING: SULFURIC ACID
BATTERIES CONTAINS SULFURIC ACID WHICH CAN CAUSE SEVERE BURNS TO THE SKIN
AND EYES AND CAN DESTROY FABRICS. IF CONTACT IS MADE WITH SULFURIC ACID,
IMMEDIATELY FLUSH THE SKIN OR EYES WITH WATER FOR 15 MINUTES AND SEEK
IMMEDIATE MEDICAL ATTENTION.
Figure 2.4 Operating Power Connections
AC Power
Hot (L1)
Earth
Neutral (L2)
Ground Stud
J12
to batteries
5ud_10udacpower.wmf
+
-
Ground Stud
J12
to batteries
+
-
FLPS-7
Power Supply
FLPS-3
Power Supply
AC Power
AC Hot
AC Neutral
Earth
MS-5UDC-7(C)(E)
MS-10UD-7(C)(E)
MS-5UD-3(E)
MS-10UD-3(E)
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