SB-520-2
35
10.4 Screwed joints of terminal box cover
Size
Case A
Case B
M6
5 Nm
4 Nm
▶ Screw in all screws with washers.
Case A: terminal box and terminal box cover of metal
Case B: terminal box and terminal box cover of plastic
10.5 Sealing screwed joints for the openings into
terminal box and module housing
Size
M16 x 1,5
2.0 Nm
M20 x 1,5
2.0 Nm
M25 x 1,5
2.5 Nm
M63 x 1,5
2.5 Nm
PG16
4.0 Nm
The screwed joints consists of screw and counter nut.
Sealing plug: 2.5 Nm
LED sight glass
Size
M20 x 1,5
2.5 Nm
Gas permeable plug
Size
M20 x 1.5
10 Nm
10.6 Electrical contacts
DANGER
Danger of electrical shock!
Disconnect supply voltage of compressor.
Size
Nut
Screw
M4
2 Nm
M5
5 Nm
M6
6 Nm
M8
10 Nm
M10
30 Nm
40 Nm ①
M12
40 Nm ①
M16
40 Nm ①
①: Mount with a pair of wedge lock washers.
▶ Tighten all screwed connections on terminal plate
manually with calibrated torque spanner to indicated
torque.
▶ Do not use any pneumatically driven tool.
FI current bars at CSV.
Size
M10
56 Nm
▶ Mount the screwed connection in this order: screw,
washer, FI connection, current bar, pair of wedge
lock washers, nut.
Cable fixing on terminal strips
Spacing pitch
3,81 mm
0,25 Nm
5,08 mm
0,5 Nm
These tightening torques apply with and without cables.
Protective earth conductor at earth terminal strip
Size
M5
1.3 Nm
▶ Mount the screwed connection on the terminal strip
in this order: cable lug, washer, single-coil spring
washer, crosshead screw.
Protective earth conductor for housing cover at
module housing bottom
Size
Nut
M6
4 Nm
▶ Mount cable lug with toothed washer.
