NORD Drivesystems BU0135 - Manual (Page 26)

SK 105E…175E Motor Starter Manual
26 Pre-series version BU 0135 GB-2713
PE
Main
PE
Main
PE
Main
PE
Main
2.5.1 Mains connections (L1, L2, L3, PE)
No special safety measures are required on the mains input side of the motor starter. It is advisable to use
normal mains fuses (see technical data) and a main switch or circuit breaker.
400V devices are designed for three phase mains voltage 200...500V (L1/L2/L3).
For the exact specification, please refer to the technical data in Section 7.
Isolation from or connection to the mains must always be carried out for all the poles and synchronously
(L1/L2/L3).
Connection to earth is made via screw terminals in the cast housing of the device.
Connection cross-section:
0.5...10mm
2
rigid/ flexible cable AWG 20-6
For looping of the mains voltage, up to a
cable cross-section of 2 x 4.0mm
2
double
wire end sleeves must be used.
Tightening torque:
1.2 ... 1.5Nm
2.5.2 Motor cable (U, V, W, PE)
Connection cross-section:
0.5 ... 10mm
2
rigid/ flexible cable
AWG 20-6
Tightening torque:
1.2 ... 1.5Nm