Installation Instructions
R20 1X UBS Macro B T S Hardw are Installation T ask 16: Connecting 220 V AC P ower
Figure 2 -24 AC PSM shelf AC power input terminal block and wiring details
ti-cdma-05697.eps
AC PSM Shelf
(rack mounted, rear view, shown partially cut away)
+27 VDC Power
Output Connector
for Battery Backup
AC Input Terminal Block Protective
Cover Box
(See Detail A for Wiring Configurations)
Conduit/Wire
Entry Hole
2 Screws On Each Side
Secure Protective Cover
Box To PSM Shelf
Detail A - AC Input Terminal Wiring Configurations (protective cover box removed)
Single-Phase
Ground
Ground Ground
AC Input Terminal Block
(terminal screw access
holes on top)
Two 3-position
Insertion Bridges
One 3-position
Insertion Bridge
Three 2-position
Insertion Bridges
3-Phase STAR
3-Phase DELTA
L3 L2 L1 N
L3 L1 L2
L1 N
68P09283A62 -3 2 -67
PRELIMINARY A UG 2007