20 • Recommended Wiring diagrams
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4.2 Control Supply, Control Input and Mains are From the Same Source, Neutral Connected to
Terminal 21
Notes:
• Use this diagram when Control
Supply, Control Input and mains are
all from the same source, and
terminal 21 is connected to neutral
as per section
4.1 page 19.
• Supply must be protected for short
circuit and over load. 6A fuse is
recommended.
• It is recommended to use a separate
fuse for the auxiliary circuits.
4.3 Control Supply and Control Input From the Same Source, Neutral not Connected to
Terminal 21
Notes:
• Use this diagram when mains and
control voltage are not from the
same source
or
when mains and control voltage are
from the same source, but terminal
21 is not connected to neutral as
per section
4.1 page 19.
In this case leave terminal 21 open.
• Supply must be protected for short
circuit and over load. 6A fuse is
recommended.
• It is recommended to use a separate
fuse for the auxiliary circuits.
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