Grounding Connections - WEG UR11 Series User Manual

Rectifier unit
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Installation and Connection
3

3.4.6.3 Grounding Connections

ATTENTION!
The neutral conductor of the network must be solidly grounded; however, this conductor must not
be used to ground the rectifier.
ATTENTION!
The rectifier must be obligatorily connected to a protective ground (PE).
Use cables with the recommended gauge indicated in the
should be followed in case different gauges are requested.
The rectifier grounding connection must be connected to the protective ground (PE).
The fastening of the UR11 ground cable connections is done with M12 x 30 bolts (tightening torque: 60 N.m.),
as presented at
3-16 | UR11
220 V input connector
Figure 3.16 - Fans supply terminals: 220 V / 4 A
Figure 3.17 on page
3-17.
Table 3.7 - Grounding cables
Current (A)
Voltage (V)
600
380 / 480
515
470
500 / 600
418
427
660 / 690
340
Table 3.7 on page
Minimum Cable
Overload
Cross-section
Area (mm
)
2
ND
240
HD
185
ND
150
HD
120
ND
120
HD
70
3-16. Local standards

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