Softmagnetic Core Materials | SoftProtector® Cores
SoftProtector® Cores to suppress damaging unbalanced currents
Modern high-power, frequency converter operated systems, especially those that are operated at very high switching frequencies, cause harmful interference currents which, among other things, groove and destroy the bearings of motors as so-called bearing currents. Systems stop unexpectedly, communication problems can arise, the function of sensors can be affected, and even motor terminals can wear out. By using easy-to-retrofit SoftProtector® Cores, such a malfunction can be reduced to a minimum so that your system can be operated with a calculable maintenance cycle.
It may also be possible to switch from hybrid bearings to conventional steel bearings. The SoftProtector® Cores absorb the harmful high-frequency part of the interference current and convert it into thermal energy, which can be released without damage via the core surface. When placed correctly, you not only protect the bearings of your engine, but also the entire system.
SoftProtector® Cores are working as single turn common mode choke and reduce the asymmetrical radio frequency noisecurrent without affecting the symmetrical power current.
Technical specifications:
| Types / Reference | Nom. Dimensions [mm] | Finished Dimensions [mm] | Lfe (cm) |
Afe (cm²) |
AL nom. @10kHz / 100kHz [μH] | Finishing | ||||||||||
| OD | ID | H | OD | ID | H | 5.000μ | 30.000μ | 60.000μ | ||||||||
| NO5040- | MRCxxx | 50 | 40 | 20 | 60,7/40,7 | 42,7/24,8 | 22,3 | 14,14 | 0,76 | MRC557 | 3,3/2,2 | MRC357 | 20,2 / 8,5 | MRC057 | 40,5/14,1 | oval cased |
| NO6350- | MRCxxx | 63 | 50 | 30 | 82,7/45,5 | 57,5/20,9 | 33 | 17,75 | 1,48 | MRC558 | 5,2/3,4 | MRC358 | 31,4/13,2 | MRC058 | 62,9/22,0 | oval cased |
| FS6556- | MRCxxx | 65 | 45 | 30 | 70 | 40 | 35 | 17,72 | 2,40 | MRC589 | 8,3/5,2 | MRC389 | 50,0/ 26,0 | MRC089 | 90,0/40,0 | cased |
| NO8063- | MRCxxx | 80 | 63 | 30 | 101/62 | 68/28 | 36 | 22,46 | 1,94 | MRC559 | 5,4/3,6 | MRC359 | 32,5/13,6 | MRC059 | 65,0/22,7 | oval cased |
| NO10575 | MRCxxx | 105 | 75 | 30 | 111 | 70 | 35 | 28,27 | 3,42 | MRC546 | 7,6/5,0 | MRC346 | 45,6/25,9 | MRC046 | 136,8/36,9 | cased |
| NO10080 | MRCxxx | 100 | 80 | 30 | 130/66 | 94/30 | 36,6 | 28,16 | 2,25 | MRC596 | 5,1/2,9 | MRC396 | 30,4/17,3 | MRC096 | 60,8/25,5 | oval cased |
| FS130100- | MRCxxx | 130 | 100 | 30 | 135 | 95 | 36 | 36,13 | 3,42 | MRC560 | 5,9 / 3,9 | MRC360 | 35,6/14,9 | MRC060 | 71,3/24,9 | cased |
| NO132104- | MRCxxx | 132 | 104 | 20 | 172/78 | 131/37 | 25 | 37,23 | 2,20 | MRC550 | 3,7/2,4 | MRC350 | 22,3/9,3 | MRC050 | 44,6/15,6 | oval cased |
| FS140100- | MRCxxx | 140 | 100 | 25 | 144 | 96 | 31 | 37,70 | 3,80 | MRC567 | 6,3/4,2 | MRC367 | 38,0/15,9 | MRC067 | 76,0/26,6 | cased |
| FS160130 | MRCxxx | 160 | 130 | 25 | 165 | 125 | 30 | 45,55 | 2,85 | MRC561 | 3,9/2,6 | MRC361 | 23,5/9,9 | MRC061 | 47,1/16,5 | cased |
| NO160130- | MRCxxx | 160 | 130 | 30 | 197/11 | 155/69 | 36 | 45,55 | 3,42 | MRC562 | 4,7/3,1 | MRC362 | 28,3/11,8 | MRC062 | 56,6/19,8 | oval cased |
| NO160130- | MRCxxx | 160 | 130 | 30 | 165 | 125 | 36 | 45,55 | 3,42 | MRC551 | 4,7/3,1 | MRC351 | 28,3/11,8 | MRC051 | 56,6/19,8 | cased |
| NO170120- | MRCxxx | 170 | 120 | 25 | 175 | 114,1 | 31 | 45,55 | 4,75 | MRC552 | 6,5/4,3 | MRC352 | 39,3/16,5 | MRC052 | 78,6/27,5 | cased |
| FS210170- | MRCxxx | 210 | 170 | 30 | 217 | 163 | 37 | 59,60 | 4,68 | MRC553 | 3,7/2,5 | MRC353 | 22,4/14,9 | MRC053 | 62,4/15,6 | cased |
| FS270210- | MRCxxx | 270 | 210 | 25 | 277 | 204 | 31 | 75,36 | 6,08 | MRC595 | 4,75/2,8 | MRC395 | 28,5/16,2 | MRC095 | 57/24 | cased |
| NO237200- | MRCxxx | 237 | 200 | 30 | 305/147 | 249/95 | 37 | 68,64 | 4,22 | MRC555 | 3,8/2,5 | MRC355 | 23,1/9,7 | MRC055 | 46,3/16,2 | oval cased |
| NO300250- | MRCxxx | 300 | 250 | 30 | 392/160 | 326/94 | 37 | 87,02 | 5,24 | MRC556 | 3,9/2,3 | MRC356 | 22,7/9,5 | MRC056 | 45,4/15,9 | cased |
The information is not binding and can be adjusted without prior information.
Example of a bearing damage:
Without SoftProtector® Core (left) | With SoftProtector® Core (right)
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Important note: For safety and the proper usage, you are requested to approve the offered product specification for your application. These products are designed for general electronic devices. Performance and safety of this product for applications which could lead to physical harm is not confirmed. Be sure to examine the performance and safety when the product is used for these applications and take appropriate measures, such as failsafe, to avoid any accident. It is the responsibility of user to take such measures.