IFM · circuit breaker
KN5105 is an IFM circuit breaker with Rated operational voltage <= 440 V AC; Breaking capacity Icu/Ics yes; Supply voltage 10...30 V DC (IEC 60947-5-2). It is used in distribution boards, motor protection circuits, panel feeders where the installed unit is matched to the original catalog number and a compact, documented part is required.
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Rated operational voltage<= 440 V AC
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Breaking capacity Icu/Icsyes
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Supply voltage10...30 V DC (IEC 60947-5-2)
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Enclosure ratingIP20 (IEC 60529)
Specifications
| Electrical |
| Rated operational voltage |
<= 440 V AC |
| Breaking capacity Icu/Ics |
yes |
| Supply voltage |
10...30 V DC (IEC 60947-5-2) |
| Frequency |
5 |
| Overload capacity |
yes |
| Mechanical |
| Dimensions (H x W x D) |
72 x 36 x 10 |
| Mounting |
non-flush mountable |
| Enclosure rating |
IP20 (IEC 60529) |
| Environment and compliance |
| Operating temperature |
-25...+60 °C |
| Certifications |
CE, cULus |
Values follow the IFM circuit breaker specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
Model comparison in the same family
| IFM circuit breaker variants |
| Catalog number |
Breaking capacity Icu/Ics |
Rated operational voltage |
|
KN5105 (this page) |
yes |
<= 440 V AC |
| KN5100 |
yes |
<= 440 V AC |
| KN5101 |
yes |
<= 440 V AC |
| KN5102 |
yes |
<= 440 V AC |
Verify model-specific dimensions, terminals and installation requirements in the manufacturer documentation before selecting an alternative.
Where it sits in the control system
The KN5105 is the device-level element in an IFM circuit breaker installation. It receives the field signals and control supply listed above — 10...30 V DC (IEC 60947-5-2) — and switches or conditions the load within the <= 440 V AC ratings shown in the Specifications table. Wiring and protective devices are sized to those same numbers, not to a generic assumption.
Typical installations place it in distribution boards, motor protection circuits, panel feeders, where the unit is matched to the original catalog number and the enclosure provides non-flush mountable support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.
Selection notes for IFM KN5105
IFM KN5105 Capacitive Sensor. See the manufacturer product information for this catalog number.
- Mounting: non-flush mountable — Confirm the revision of the installed unit before a like-for-like replacement.
- Overload capacity: yes — Use it as the reference when cross-checking a current-production equivalent.
- Breaking capacity Icu/Ics: yes — Verify it in the project documentation before confirming the order.
- Certifications: CE, cULus — Check this value against the nameplate of the installed unit before ordering.
Datasheets and compliance documents are available on request; quote the full catalog number when enquiring.
Common questions about KN5105
Q.Which value is published under operating temperature for catalog number KN5105?
For KN5105, operating temperature is given as -25...+60 °C. Check the revision of the installed unit if the catalog number has been superseded.
Q.Before ordering KN5105, which mounting entry should be checked?
The mounting entry quoted above is non-flush mountable. Compare it with the nameplate of the installed unit before ordering.
Q.Where can I find the enclosure rating data for KN5105?
It is listed in the specification table for IFM KN5105 as IP20 (IEC 60529). Confirm this figure against the unit currently in the panel.
Q.Can the KN5105 replace the unit currently installed in my panel?
Compare catalog number KN5105 and the ratings above with the nameplate of the installed device. A current-production equivalent is selected by function and electrical rating, not by the label alone.
Q.What should I include in an enquiry for KN5105?
Send the full catalog number KN5105, the required quantity and a photo of the nameplate. Stock, lead time and the applicable compliance documents can then be confirmed for IFM KN5105.