
2.SPINDLE DESIGNING AND MOTOR MOUNTING B-65342EN/01
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2.1.3 Insulation
Clearance
Clearance between windings and other conductive materials have to
be 3mm or more, and this condition have to be applied for all
directions of windings. Refer to IEC664-1 for more details.
If a motor is mold type, the clearance is enough when no parts around
molded resin contacts it.
3mm or more
3mm or more
Stator
Rotor
Creepage distance
Creepage distance depends on materials used for insulation. In the
case of general plastic material under IP54 condition, it has to be
2.5mm or more. Refer to VDE0110 for details.
NOTE
Clearance and creepage distance varies with the
environment and materials. Therefore confirm
actual value that is suitable for your machine
system.
Terminal block and connector
Use IEC- or UL-certified terminal blocks and connectors for power
leads connection.
For the clearance and creepage distance between terminals, conform to
IEC664-1.