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General
General information to chokes can be found on page Chokes.
Why use Mains Chokes?
The mains choke
- prevents impermissible loading of semiconductors in the event of rapid current rise during commutation.
- prevents voltage dips in the mains voltage caused by commutation.
- reduces current ripple in the DC link, thereby increasing the service life of the DC link capacitors.
Single conductors can be used for wiring and a shield is not required.
When is a mains choke required?
- With S640/670 a mains choke with 4% uk must be used in any case in order to reduce mains harmonics.
- With S748/772 in special cases (if mains voltage is more than 3% asymmetrical) a mains choke with 2% uk must be used
Current Kollmorgen mains chokes
Three phase main chokes acc. to IEC 61558-2-20. CE, UL, and RoHS information can be found on page Approvals.
| Rated voltage | 3 x 400V |
|---|---|
| Frequency | 50 ... 60Hz |
| Test voltage | 4000 Vdc |
| Environment temperature | -10 ... +40°C |
| Cooling | AN |
| Protection class | IP 00 |
| Inductance | Resistance | Max. Current | Insulation Class | Weight | Approvals | Drawings | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Type | Uk | (mH) | (mOhm) | (A) | IEC | UL | (kg) | CE | UL | Usable for | 3D |
| 3L0,5-63-4 | 4% | 0,47 | 5,90 | 63 | F | 155 | 9,65 | x | x | S640/S670 | Step |
| 3L0,4-80-4 | 4% | 0,37 | 2,70 | 80 | F | 155 | 12,5 | x | x | S640/S670 | Step |
| 3L0,2-160-4 | 4% | 0,19 | 0,83 | 160 | H | 180 | 27 | x | x | S640/S670 | |
| 3L0,24-50-2 | 2% | 0,24 | 3,87 | 50 | H | 180 | 5,9 | x | x | S748 | |
| 3L0,2-75-2 | 2% | 0,2 | 2,07 | 75 | F | 155 | 9,9 | x | x | S772 | Step |
