6 | Electrical Connection
16 | 36
Instruction Manual COBRA BA 0100 C_EN_en
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Electrically connect the machine directly to the mains connection (MC).
NOTICE
Incorrect direction of rotation.
Risk of damage to the machine!
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Operation in the wrong direction of rotation can destroy the machine in a short time! Prior to
start-up, ensure that the machine is operated in the right direction.
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With a phase rotation tester, check if the wiring corresponds to the correct direction of rotation.
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Jog the motor briefly.
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Make sure that the machine draws in air.
If the rotation of the motor must be changed:
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Switch any two of the motor phase wires.
6.1
Machine delivered without Variable Speed Drive
DANGER
Live wires.
Risk of electrical shock.
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Electrical installation work must only be executed by qualified personnel.
NOTE
The operation with variable speed, i.e. with a variable speed drive, is allowed as long as the
motor is capable and the permitted motor speed range is respected (see Technical Data).
Seek advice from your Busch representative.
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Make sure that the power supply for the motor is compatible with the data on the nameplate of
the motor.
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If the machine is equipped with a power connector, install a residual current protective device to
protect persons in case of isolation default.
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Busch recommends installing a type B residual protective device suitable for the electrical in-
stallation.
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Provide a lockable disconnect switch or an emergency stop switch on the power line so that the
machine is completely secured in case of an emergency situation.
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Provide a lockable disconnect switch on the power line so that the machine is completely secured
during maintenance tasks.
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Provide an overload protection according to EN 60204-1 for the motor.
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Connect the protective earth conductor.
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Electrically connect the motor.
