11.3.3 Short Circuit Current Rating (SCCR)
The Short Circuit Current Rating (SCCR) of the frequency
converters is 100,000 amps at all voltages (380–690 V).
If the frequency converter is supplied with a mains
disconnect, the SCCR of the frequency converter is 100,000
amps at all voltages (380–690 V).
11.3.4 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 Size Terminal Torque [Nm]
(in-lbs)
Bolt size
D1h/D3h/D5h/
D6h
Mains
Motor
19-40
(168-354)
M10
Ground
Brake
8.5-20.5
(75-181)
M8
D2h/D4h/D7h/
D8h
Mains
Motor
Ground
19-40
(168-354)
M10
Brake 8.5-20.5
(75-181)
M8
E1/E2 Mains
Motor
Ground
19-40
(168-354)
M10
Brake 8.5-20.5
(75-181)
M8
Table 11.7 Torque for Terminals
Specifications Operating Instructions
104 Danfoss A/S © Rev. 05/2014 All rights reserved. MG16J202
1111
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