Installation
4-14
BA9300SU EN 2.1
Fuses
Fuses and cable cross-sections The specifications in chapter 3.3.4 are recommendations and refer to the
application
• in control cabinets and machines
• installation in the cable duct
• max. ambient temperature +40 °C.
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3-6
Selection of the cable cross-section For selection take into account the voltage drop in the event of load
application (to DIN 18015 part 1:
≤ 3%).
Cable and controller protection on the AC side
(L1, L2, L3)
• By means of standard commercial fuses.
• Fuses in UL-conform plants must have UL-approval.
• The rated voltages of the fuses must be dimensioned according to the
mains voltage at the site. The activation characteristic is defined with ”H”
or ”K5”.
Cable and controller protection on the DC side
(+ UG, -UG)
• By means of recommended DC fuses.
• The fuses/fuse holders recommended by Lenze are UL approved.
For DC group drives or supply using a DC
source:
Observe the information given in Part F of the Manual.
Connection of a brake unit If the unit is connected to the terminals +UG / -UG, the fuses and
cross-sections indicated in chapter 3.3.4 are not valid. These unit-specific
data can be obtained from the technical documentation for the brake unit.
Further information For cable and controller protection see the chapter ”Accessories” in
“Planning”.
Further standards The compliance with other standards (e.g.: VDE 0113, VDE 0289, etc.)
remains the responsibility of the user.
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