Liebert Series 600T Power Wiring Terminals Factory Supplied, Torque Specifications

	Table 1
	Power Wiring Terminals - Factory Supplied
UPS	CONNECTION
MODULE	TYPE
65 & 80 kVA	Bypass input wiring is top-entry, to busbars on top of the circuit breaker. Rectifier
	input wiring is top-entry, directly to lugs on top of the input circuit breaker. DC link
	and critical bus output connections are top entry, to frame-mounted lugs. A bottom-
	entry access plate is standard, to enable the installer to pull AC cables and control
	wiring through the module to the connections on top.
100-225 kVA	For “SpaceSaver” modules in the 48” frame, rectifier and bypass input wiring is top-
	entry, directly to lugs on top of their respective circuit breakers. DC link and critical
	bus output connection are top entry, to frame-mounted lugs.
	Standard modules with top-and-bottom entry have access plates and a wireway on
	the right side of the modules. All power connections are to bus bars in the wireway.

Use 75°C copper wire. Select wire size based on the ampacities in Table 310-16 and associated notes of the National Electrical Code (NFPA 70).

Use commercially available solderless lugs for the wire size required for your application. Refer to Table 3. Connect wire to the lug using tool and procedure specified by the lug manufacturer.

Table 2

Torque Specifications

	NUT AND BOLT COMBINATIONS
BOLT SHAFT	GRADE 2			ELECTRICAL CONNECTIONS
SIZE	STANDARD			with Belleville Washers
	Lb - in	N-m		Lb-in		N-m
1/4	53	6.0		46		5.2
5/16	107	12		60		6.8
3/8	192	22		95		11
1/2	428	22		256		29
CIRCUIT BREAKERS				TERMINAL BLOCK
WITH COMPRESSION LUGS				COMPRESSION LUGS
(For Power Wiring)				(For Control Wiring)
WIRE SIZE	Lb-in	N-m	AWG WIRE		Lb-in	N-m
OR			SIZE
RANGE			OR RANGE
#6 - #4	100	11	#22 -#14		3.5 to 5.3	0.4 to 0.6
#3 - #1	125	14
1/0 - 2/0	150	17
3/0 - 200 MCM	200	23
250 - 400 MCM	250	28
500 - 700 MCM	300	34

22 Installation Manual