Installation | 5
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Machine type
Coupling size
Value “E” (mm)
Value “L” (mm)
RA/RC 0400 C
BoWex
®
M-65
4
114
RA/RC 0502 C
RA/RC 0630 C
In case of a machine delivery without motor:
• Make sure that the ATEX marking of the coupling corresponds to the ATEX classi-
fication of the machine.
• Fit the second coupling hub on the motor shaft (separately delivered).
• Axially adjust the sleeve in such a way until value "E" (or “L”) is reached.
• When the coupling adjustment is done, lock the coupling hub by tightening the
radial screw.
• Mount the motor on the machine by including the coupling sleeve.
For further coupling information, go to
manual of the BoWex
®
coupling.
5.6 Electrical Connection
DANGER
Live wires.
Risk of electrical shock.
• Electrical installation work must only be executed by qualified personnel.
NOTE
The operation with variable speed, i.e. with a variable-frequency drive or a soft starter
unit, is allowed as long as the motor is admitted and the permitted motor speed range is
neither underrun nor exceeded (see
).
Seek advice from your Busch representative.
• Make sure that the power supply for the motor is compatible with the data on the
nameplate of the motor.
• The electrical installation must comply with applicable national and international
standards.
• Provide a lockable disconnect switch on the power line so that the machine is com-
pletely secured during maintenance tasks.
• Provide an overload protection according to EN 60204-1 for the motor.
• Busch recommends installing a D-curve circuit breaker.
• 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.
