51
1600XPi Series UPS Installation and Operation Manual – 60616-014
MAIN OUTPUT
LOAD
PANEL
L1
L2
N
G
L1
L2
G
X2
X3
N
G
MIB1
MIB2
MBB1
MBB2
L1
L2
UIB1
UIB3
UIB2
UIB4
G
N
UTILITY
PANEL:
3
Φ
N
X1
X3
X2
120V
208V
DO NOT USE 3-PHASE INPUT WHEN USING THIS EXTERNAL MAINTENANCE BYPASS
19.4 (Optional) External Three-Breaker Maintenance Bypass (With Transformer)
The Three-Breaker MBS solution will allow the user to transfer the load between utility and inverter power sources with-
out interruption. It also allows the UPS itself to be isolated from utility power for safe maintenance or replacement of the
unit. This MBS utilizes a transformer matching to the 1600XPi’s transformer allowing 208/240V operation on input and
120/208/240V on output.
240V Output Wiring: Connect UPS (TB-4(X1) and TB-7(X3) 240 VAC to MIB1 and MIB2. Ensure UPS voltage selector
jumper is set to whichever voltage is connected from the MBS transformer (240V or 208V).
208V Output Wiring: Connect UPS (TB-5(X2) and TB-7(X3) 208 VAC to MIB1 and MIB2. Ensure UPS voltage selector
jumper is set to whichever voltage is connected from the MBS transformer (240V or 208V). Utility power
may
be supplied
from two phases of a three phase 208/120V source in this system configuration.
MAIN OUTPUT
UTILITY PANEL:
SINGLE Φ
120/208/240V
L1
L2
N
G
LOAD
PANEL
L1
L2
N
G
L1
L2
G
X1/X2
X3
N
G
MIB1
MIB2
MBB1
MBB2
L1
L2
UIB1
UIB3
UIB2
UIB4
G
N
N
UTILITY
PANEL:
3
Φ
OR
Summary of Contents for 1600XPi SERIES
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Page 120: ...C2 1600XPi Series UPS Installation and Operation Manual 60616 014 5 2 6 kVA Dimensions ...
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