Non-standard tightening torques
Dierent tightening torques for electrical connections and bolted connections for parts with
at seals or insulating parts are specied in the relevant sections and drawings.
A.1.2 Terminal board and grounding
Table A-2 Tightening torques for electrical connections on the terminal board and grounding
Thread ∅ M3.5 M4 M5 M6 M8 M10 M12 M16
Nm
min. 0.8 0.8 1.8 2.7 5.5 9 14 27
max. 1.2 1.2 2.5 4 8 13 20 40
A.1.3 Terminal boxes, end shields, grounding conductors, sheet metal fan covers
If no other tightening torques are specied, then the values in the following table apply.
Table A-3 Tightening torques for screws on the terminal box, end shields, screw-type grounding conductor connections
Thread ∅ M3.5 M4 M5 M6 M8 M10 M12 M16 M20
Nm min. 0.8 2 3.5 6 16 28 46 110 225
max. 1.2 3 5 9 24 42 70 165 340
Table A-4 Tightening torques for self-tapping screws on the terminal box, end shields, screw-type grounding conductor
connections, sheet metal fan covers
Thread ∅ M 4 M 5 M 6
Nm min 4 7.5 12.5
max 5 9.5 15.5
A.1.4 Tightening torques of additional connecting terminals
Table A-5 Tightening torques for electrical connections of monitoring equipment and anti-
condensation heating
Main terminal box
EN 60999-1: 2000 table 4 III
0.4Nm
Auxiliary terminal box min 0.6Nm max 0.8Nm
Technical data
A.1Tightening torques
1LE1, 1FP1/3, 1PC1/3 shaft height 63 ... 315
134 Operating Instructions, 11/2023, A5E38483075A
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