Operating instructions

Protect PV.500/630-MH - Operating Instructions

Page 22 of 45 8000043212 BAL

7.4 Tightening Torques for Screw Connections

Thread

Electrical

connection

[Nm]

Mechanical connection

Cheese head screw,

strength category 5.8

[Nm]

Hexagon screw,

strength category 8.8

[Nm]

Slotted cheese head

screw

DIN 84 with slot

[Nm]

1.2 1.3 2.0 1.2

2.0 2.65 4.0 2.0

3.0 4.4 7.0 2.5

6.0 10.5 17.0 3.5

M10

10.0 - 33.0 4.0

M12

15.5 - 56.0 -

M16

30.0 - 140.0 -

M20

52.0 - 260.0 -

M24

80.0 - 445.0 -

Table 4 - Tightening torques

These values apply to electrical and mechanical screw

connections. They do not apply to floor attachment with dynamic

stress applied.