Specifications

Control Power Wiring • 9
4.2. Control Power
4.2.1. Fuse Recommendations
Keep the fuses close to the power source (obey lo-
cal and national code requirements).
For selecting fuses and circuit breakers, use the
following criteria:
• Current interrupt capacity should be selected based
on the installation category and fault current capa-
bility.
• Over-current protection should be selected with a
time delay.
• The voltage rating should be sufficient for the input
voltage applied.
• Provide overcurrent protection and disconnecting
devices appropriate for the wiring.
• The earth connection is required for electromagnetic
compatibility (EMC) and is not a protective earth
ground.
Figure 4-7 - Direct Connect Control Power (Phase to Phase)
Figure 4-8 - Direct Connect Control Power (Phase to Neutral)
Figure 4-9 - Control Power Transformer (CPT) Connection
Figure 4-10 - Control Power Transformer (CPT) Connection