Corner-grounded delta systems ≤ 600 V
R3: Do not remove EMC or VAR screws.
R6: Remove EMC screw. Do not remove VAR screw.
See Note 1 below.
R8: Remove EMC DC and VAR screws.
Midpoint-grounded delta systems ≤ 600 V
R3: Do not remove EMC or VAR screws.
R6: Remove EMC screw. Do not remove VAR screw.
See Note 1 below.
R8: Remove EMC DC and VAR screws.
IT systems (ungrounded or high-resistance grounded [>30 ohms])
R3: Remove EMC and VAR screws.
R6: Remove EMC and VAR screws.
R8: Remove EMC DC and VAR screws.
TT systems
Electrical installation – IEC 95
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