Instruction manual

4.2 Wiring
4.2.1 Wire Routing
All wiring must be installed in accordance with NFPA70, NFPA72, and all local code requirements.
Power Limited wiring requires that power limited and non-power limited wiring remain physically
separated. Any power limited circuit entering the enclosure must remain at least one quarter inch
(¼”) away from any non-power limited circuit wiring. Any power limited circuit wiring must enter
and exit the enclosure through different knockouts than non-power limited circuit wiring. Wiring
within the enclosure should be routed around the perimeter of the cabinet. It should not be
routed across the circuit boards.
4.2.2 AC Input
4.2.2.1 Cabinet Level Supplies
Connection should be made via an approved method. AC mains wiring should be no smaller
than 14 AWG. See Section 3.3 for details.
4.2.2.2 Board-Level Supplies
Locate the LVAC Input terminals. These terminals are non-removable and accept wire sizes
between #12 and #22 AWG. Phasing of the LVAC input is not important on the PS2/3/5. See
Section 3.1 for Transformer requirements.
4.2.3 Output Wiring
Locate the output terminals. These terminals are non-removable and accept wire sizes between
#12 and #22 AWG. Polarity is marked on the PCB, and on the supporting documentation.
4.2.4 Battery Wiring
Locate the battery terminals. These terminals are non-removable and accept wire sizes between
#12 and #22 AWG. Polarity is marked on the PCB. If the PS2/3/5 is set for 12VDC, connect a
single 12V battery to the terminals. If the PS2/3/5 is set for 24VDC, connect two 12V batteries in
series to the terminals.
CAUTION - A lead-acid battery has the capability of producing extremely high current.
Personal or property damage can occur if the batteries are shorted or improperly
connected.
4.2.5 Fault Output Wiring
4.2.5.1 Supplies with Integral Relay
Locate the Fault Output relay terminals. These terminals are non-removable and accept wire
sizes between #12 and #22 AWG. The relay terminals are marked in the non-powered (fault)
state (In a normal (non-fault) condition, there is a connection between C and NO).
4.2.5.2 Supplies with a Voltage Fault Output
See Appendix A for details on wiring the voltage Fault Output.
PS2/3/5 Installation Instructions
8/23/2007, 2:51:41 PM
52-133 Rev B.01
Page 11 of 16
AlarmSaf 65A Industrial Way, Wilmington, MA 01887 978 658 6717 www.alarmsaf.com