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15
WITHOUT BACKFEED PROTECTION CONFIGURATION
1. Hardwire the input terminals as shown in the following diagram.
2. Do not remove the interconnection wires (Jumper1 / Jumper2) on “
Backfeed Protection Connector
”.
WITH BACKFEED PROTECTION CONFIGURATION
1. Connect a user supplied external isolation device (Magnetic Contactor) upstream and outside the UPS
and capable of supporting the UPS input current.
2. Remove the interconnection wires (Jumper1 / Jumper2) on “
Backfeed Protection Connector
”.
3. Hardwire the input terminals and “
Backfeed Protection Connector
” as shown in the following diagram.
4. The external isolation device must be installed in the Mains path.
UPS
L1
L2
PSDR
AC-L1
AC-L2
IP-L1
IP-L2
Backfeed
1
2
4
5
3
L1
L2
I/P
EMI
L1
L2
L1 L2 PE
Mains
PE
Jumper2
Jumper1
UPS
L1
L2
PSDR
AC-L1
AC-L2
IP-L1
IP-L2
Backfeed
1
2
3
4
5
MC
L1
L2
L1
L2
A1
A2
I/P
EMI
L1
L2
L1
L2
L1 L2 PE
Mains
PE
2A Fuse
(Slow Blow)
MAINTENANCE BYPASS MODULE
INSTALLATION CONT.