Part Number
Operating Instructions
Item no. LS-105.
Revision 003
Release 30/06/2017
Page 7 of 12
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W3G500GN3307-LA1
4.2.3
Reactive currents
Because of the EMC filter integrated for compliance
with EMC limits (interference emission and
interference immunity), reactive currents can be
measured in the supply line even when the motor is
at a standstill and the mains voltage is switched on.
The values are typically < 250 mA.
At the same time, the effective power in this operating
state (operational readiness) is typically < 5 W.
4.2.4
Residual current circuit breaks (RCCB)
Only universal (type B or B+) residual current devices
(RCD) are permitted. Like frequency inverters, RCD
protective devices cannot provide personal safety while
operating the device. When switching on the power
supply of the device, pulsed charge currents from the
capacitors in the integrated EMC filter can lead to the
RCD protective devices tripping without delay. We
recommend residual current devices with a trigger
threshold of 300 mA and delayed tripping (super-
resistant, characteristic K).
4.2.5
Leakage current
For asymmetrical power systems or of a phase fails, the
leakage current can increase to a multiple of the
nominal value.
4.2.6
Locked rotor protection
Due to the locked-rotor protection, the start-up current
(LRA) is equal to or less than the nominal current (FLA).
4.3
Connection in terminal box
4.3.1
Preparing cables for the connection
Only strip the cable as far as necessary, ensuring that the
screwed cable gland is sealed and there is no strain on the
connections. For tightening torque, see chapter 3.1 Product
drawing.
NOTE
Tightness and strain relief are dependent on the cable
used.
→ This must be checked by the user.
Fig. 1: Recommended stripping lengths in mm (inside
the terminal box).
Legend: CL = control lines
