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5.4 Electrical Connection
DANGER
Live wires.
Risk of electrical shock.
• Electrical installation work must only be executed by qualified personnel.
• Make sure that the power supply for the motor is compatible with the data on the
nameplate of the motor.
• Provide an overload protection according to EN 60204-1 for the motor.
• Make sure that the motor of the machine will not be affected by electric or electro-
magnetic disturbance from the mains; if necessary seek advice from Busch.
• Connect the protective earth conductor.
• Electrically connect the motor.
NOTICE
Incorrect connection.
Risk of damage to the motor!
• The wiring diagrams given below are typical. Check the inside of the terminal box for
motor connection instructions/diagrams.
5.4.1 Wiring Diagram Single-Phase Motor
The motor is equipped with an auto reset thermal protector that turns off the machine at
120 ±5 °C.
If the protector has been activated:
• Solve the problem (see Troubleshooting [}21]).
• Let the motor cool down until a temperature of 78 ±9 °C.
• Restart the machine.
For RH 0003 B:
• Electrically connect the motor according to the following wiring diagram:
Connector type: Quick-connect terminal (#250)
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