NORDAC SK 200E Manual
32 Subject to technical alterations BU 0200 GB
2.6.1 Mains connections (X1 - L1, L2, L3, EARTH)
No special safety measures are required on the mains input side of the frequency inverter. It is advisable to
use normal mains fuses (see technical data) and a main switch or circuit breaker.
115V devices may only be used with a 110…120V (L/N = L1/L2) single phase supply.
230V devices may be ordered either for single phase (...-123-, L/N = L1/L2) or three phase (...-323-,
L1/L2/L3) operation. It is essential to note the type designation!
400V devices are designed for three phase mains voltage 380...480V (L1/L2/L3).
For the exact specification, please refer to the technical data in Section 7.
Connection to the bonding is by means of screw terminals in the cast housing of the connection unit:
Note
: The use of this frequency inverter on an IT network is possible after modifications by means of
jumpers. Further details in Section 2.8.6 – 2.8.7.
Cable cross-section: 0.5 ... 6mm
2
rigid/ flexible cable
AWG 20-10
For looping of the mains voltage, up to a cable cross-section of 2x 2.5mm
2
double
wire end sleeves must be used.
Tightening torque 1.2 ... 1.5Nm
PE
Mains
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