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MOTOR OPERATION
Powering the Motor
11
Connection Alternatives
The examples show the usual circuit with a right-hand field and a counterclockwise direction of rotation.
Motor Safety Switch
A motor safety switch (overload relay) is mandatory. Only use thermal trips of tripping categories 10A or 10,
with tripping time < 10 s at 500% I
N
(nominal current), phase sensitivity, and temperature compensation.
MOTOR OPERATION
Wye-Delta Starting
Direct (DOL)
Risk of personal injury, or damage to pump or other equipment.
•
Damage to the motor and the motor cable is possible due to overheating.
•
Make sure that the coolant flow speed along the motor is sufficient.
•
Make sure that the short motor cable is always fully surrounded by transport medium for proper
cooling.
Содержание 264 Series
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