Installation Instructions

T ask 16: Connecting 220 V AC P ower Chapter 2: UBS Macro B T S Installation Procedure
Figure 2 -26 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
2 -70 68P09283A62 -2
PRELIMINARY A UG 2007