6.5.2 Cable ends with wire end sleeves
1. Preferably use end sleeves instead of soldering cable ends.
2. Before connecting, attach the end sleeves so as to form a technically correct, current-carrying
crimped joint at the end of the conductor.
WARNING
Risk of explosion due to excessive temperature rise
If the end of the conductor is not correctly enclosed by the end sleeve, but is trapped by it,
this can lead to overheating. The temperature class of the machine can be exceeded. This
can trigger ignition of an explosive mixture. This can result in death, serious injury or
material damage.
• Insert only one conductor end into each end sleeve. Attach the end sleeve correctly.
6.5.3 Connecting aluminum conductors
If you are using aluminum conductors, then comply with the following:
• Use only cable lugs that are suitable for connecting aluminum conductors.
• Immediately before inserting the aluminum conductor, remove the oxide layer from the
contact areas on the conductor and/or the mating piece. Do this using a brush or le.
• Then grease the contact areas immediately using neutral Vaseline. This prevents a new oxide
layer from forming.
NOTICE
Aluminum ow due to contact pressure
Aluminum ows following installation due to the contact pressure. The connection using
clamping nuts can loosen as a result. The contact resistance increases, obstructing the
current from being conducted. This can result in re and material damage to the machine
– or even in total failure, as well as material damage to the plant or system due to machine
failure.
• Retighten the clamping nuts after approximately 24hours and then again after
approximately 4 weeks. Make sure that the terminals are de-energized before you
tighten the nuts.
Electrical connection
6.5Conductor connection
1MB..1/2/3/4 - shaft heights 63 ... 355
Operating Instructions, 11/2023, A5E52779900A 91
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