Siemens SIPROTEC 5 Series Hardware Description page 213

Tightening Torques for Terminal Screws
Type of Line
Stranded wires with ring-
type lug
Stranded wires with boot-
lace ferrules or pin-type
lugs
Solid conductor, bare
(2 mm 2 )
NOTE
i
i
Use copper cables only.
Torques for Other Screw Types
Screw Type
M4 x 20
M4 x 8
M2.5 x 6
Countersunk screw, M2.5 x 6
Countersunk screw, M2.5 x 8
Collar screw, M4 x 20
SIPROTEC 5, Hardware Description, Manual
C53000-G5040-C002-C, Edition 10.2017
Current Terminal
(also see Figure 5-22)
2.7 Nm
2.7 Nm
2.0 Nm
Voltage Terminal with
Spring-Loaded Terminals
(also see Figure 5-22)
No ring-type lug
1.0 Nm
1.0 Nm
Torque
1.2 Nm
1.2 Nm
0.39 Nm
0.39 Nm
0.39 Nm
0.7 Nm
Technical Data
6.13 Design Data
Voltage Terminal with
Screw Connection
(also see Figure 5-23)
No ring-type lug
0.6 Nm
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