27
Copyright © 2022 Eaton Corporation plc. All rights reserved.
Table 3-6: Requirements on 60–80K connecting terminals and torques
Terminal functions Terminals Functions
Dimensions
of
connecting
terminals
Fastening
torque (Nm)
Bolt
specications
AC mains input to
UPS rectier
L1
A phase
M8 15 (133) 60 mm
²
(M8)
L2
B phase
M8 15 (133) 60 mm
²
(M8)
L3
C phase
M8 15 (133) 60 mm
²
(M8)
N
N
M8 15 (133) 60 mm
²
(M8)
AC mains input to
bypass
L1
A phase
M8 15 (133) 60 mm
²
(M8)
L2
B phase
M8 15 (133) 60 mm
²
(M8)
L3
C phase
M8 15 (133) 60 mm
²
(M8)
N
N
M8 15 (133) 60 mm
²
(M8)
UPS output to loads
L1
A phase
M8 15 (133) 60 mm
²
(M8)
L2
B phase
M8 15 (133) 60 mm
²
(M8)
L3
C phase
M8 15 (133) 60 mm
²
(M8)
N
N
M8 15 (133) 60 mm
²
(M8)
DC input
+
Battery (+)
M10 28 (248) 150 mm
²
(M10)
-
Battery (-)
M10 28 (248) 150 mm
²
(M10)
N
Battery (N)
M10 28 (248) 150 mm
²
(M10)
User grounding
Grounding M8 15 (133) 60 mm
²
(M8)
CAUTION
This product does not provide any external overcurrent protector, but shall comply with
local regulatory requirements. If input/output disconnecting devices need to be installed,
they shall be supplied by the customer.
CAUTION
• To avoid the risk of re, the rated current of the circuit breaker shall not be less than
the specications provided in
Table 3-3
.
• If the UPS carries the imbalanced load, the use shall be derated at the full load current
under balanced load. The line current under imbalanced load shall be <= 50% of the
full-load current under balanced load. See
Table 3-3
• Power supply protection for AC input to bypass shall conform to the load
characteristics of the surge or starting current. The overcurrent protection switches
for the bypass and output shall be provided by the customer.
• For wiring diagram of the UPS, see Section
2.1
Internal structure of UPS system.