System impedances
NOTICE
Maximum switching frequency per hour
The connected motor determines the maximum switching frequency per hour. Note the technical data of the connected motor! The maximum switching frequency of the motor must not be exceeded.
NOTICE
- Depending on the system impedance and the maximum connections/hour of the connected consumers, voltage fluctuations and/or drops may occur.
- When using shielded cables, attach the shielding to the earth rail on one side of the switchgear!
- Always have connection carried out by a qualified electrician!
- Observe the installation and operating instructions for the connected pumps and signal transmitters.
3~400 V, 2-pole, direct starting | ||
|---|---|---|
Power in kW | System impedance in ohm | Connections/h |
2.2 | 0.257 | 12 |
2.2 | 0.212 | 18 |
2.2 | 0.186 | 24 |
2.2 | 0.167 | 30 |
3.0 | 0.204 | 6 |
3.0 | 0.148 | 12 |
3.0 | 0.122 | 18 |
3.0 | 0.107 | 24 |
4.0 | 0.130 | 6 |
4.0 | 0.094 | 12 |
4.0 | 0.077 | 18 |