Installing Your DeltaV System > Installation Planning

Torque Limits

When you install the DIN rails and DeltaV equipment, do not exceed the maximum torque limits for the mounting screws.

Table: Maximum Torque Limits on Mounting Screws
Item Torque Limit on Mounting Screw(s)
Bulk power supply 2.84 Nm (25 in-lb) 2.84 Nm (25 in-lb)
DIN rail latching 1.32 Nm (12 in-lb)
DIN rail stop 0.9 Nm (8 in-lb)
I/O terminal block field terminations 0.45 Nm (4 in-lb)
I/O terminal block protection cover 0.11 Nm (1 in-lb)
I/O card 0.11 Nm (1 in-lb)
Controller 0.11 Nm (1 in-lb)
Media Converter 0.11 Nm (1 in-lb)
System Power Supply 0.11 Nm (1 in-lb)