Short Circuit Current Rating (Sccr); Connection Tightening Torques - Danfoss Turbocor Installation Manual

Specifications

5.3.3 Short Circuit Current Rating (SCCR)

The Short Circuit Current Rating (SCCR) of the frequency
converters is 100,000 amps at all voltages (380–575 V).

5.3.4 Connection Tightening Torques

When tightening all electrical connections it is very
important to tighten with the correct torque. Too low or
too high torque results in a bad electrical connection. Use
a torque wrench to ensure correct torque. Always use a
torque wrench to tighten the bolts.
Frame Terminal
size
D1h Mains
Motor
Load sharing
Regen
Earth (Ground)
Brake
D2h Mains
Motor
Regen
Load sharing
Earth (ground)
Brake
Table 5.6 Torque for Terminals
MG35Q202
Installation Guide
Torque [Nm (in-lbs)] Bolt
size
19-40 (168-354) M10
8.5-20.5 (75-181) M8
19-40 (168-354) M10
8.5-20.5 (75-181) M8
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