Chapter 1: Installation and wiring
P/N 3102351-EN • REV 005 • ISS 28DEC18 7
Caution: The middle connection (EARTH GND) on the terminal block makes a mechanical
connection to the chassis even with the ground wire removed.
Terminate the incoming AC power wiring as shown in Figure 5.
Figure 5: AC power wiring
2) Earth ground
(3) Neutral (120 VAC), Line (230 VAC)
(4) 5 A, 250 V, SLO-BLO (Littelfuse
P/N 2450005)
(5) 120 or 230 VAC primary power connection
Note: See “Component descriptions” on page 138 for the location of the wiring block in the
backbox.
Panel transformer wiring
WARNING: Electrocution hazard. To avoid personal injury or death from electrocution, remove
all sources of power and allow stored energy to discharge before installing or removing
equipment.
Incoming power circuit specifications
• VS1 panel: 120 V, 60 Hz, 1.3 A or 230 V, 50/60 Hz,
0.62 A from dedicated branch supply
• VS4 panel: 120 V, 60 Hz, 2.0 A or 230 V, 50/60 Hz,
0.97 A from dedicated branch supply
Low voltage circuit specifications
• Circuit voltage: 24 VAC
• All circuits are power-limited unless otherwise noted
Terminate the primary and secondary transformer wiring as shown in Figure 6 and Figure 7.
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