Chapter 7 Connection and Wiring
4 1
UPS
Suggested Backfeed
Protection Device
Rating Voltage/ Current
Suggested Model
No.
N9$
9DF
65A
AF52-30-13 (ABB)
z
Control Relay Requirements:
Breaking Capacity
9DF$
Contact Form
Normally Closed (NC)
Coil
9GF$
Suggested Model No.
HF13F-012-1Z1T
z
Backfeed Protection Wiring Diagram:
Please refer to the diagram below to install the backfeed protection device
between the AC input and the UPS.
L (L1)
N (L2)
L (L1)
N (L2)
UPS
Coil
Control Relay
Contactor
Dry
Contact
DC 12V