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The product is verified as being authentic; however, this does not guarantee the condition or fit for purpose of the product.
Bussmann series Class RK1 Fuses
Bussmann's UL Class RK1 fuse offering includes the industry's most recognized Low-Peak dual-element, current-limiting, time-delay fuses (LPN-RK and LPS-RK) which are also available with optional indication on select ratings (see product data sheet). Complementing the Low-Peak product offering is Bussmann's Limitron family of fast-acting fuses (KTN-R, KTS-R, KWN-R and KWS-R) fuses.
Core features
- Current limitation for non-inductive circuits provides Class RK1 current-limiting response to maximum ground fault and short-circuit conditions.
- Economical solutions for high-fault circuits.
- Provides 10X better current limitation to help prevent equipment damage caused by short-circuit events.
- 200kA Interrupting rating complies with NEC® Section 110.9 for today's large capacity systems.
- Fast-acting fuse helps prevent equipment damage caused by short-circuit events. Incorporates Class R rejection feature.
- Can be inserted in non-rejection type fuse holders to physically and electrically replace fast-acting Class H, K1, K5, RK5, and other fast-acting fuses.
- Ideal for critical industrial or commercial applications that have specific current limitation requirements.
Benefits of Class RK1 fuses
Current-limiting, time-delay and fast-acting fuses that deliver 2:1 selectivity ratio, and simultaneously enable inventory consolidation of RK1, RK5, H and K5 UL Class fuses.
Low-Peak Upgrade Program
Fuseology
An introduction to understanding fuses and how they are applied for providing overcurrent protection.
Helpful Apps & Resources
Specifications
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Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, With minimal time delay, 250V, 1A, Class RK Ferrule end X ferrule end, Melamine glass tube, 0.56, Inch, Non Indicating
Eaton Bussmann series KTN-R fuse, 70/30 brass end cap, 250V, 10A, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann series KTN-R fuse, 70/30 brass end cap, 250 Vac, 250 Vdc, 100A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Non Indicating, Current-limiting, Fast Acting Fuse, Blade end X blade end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 250 Vac, 250 Vdc, 110A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Non Indicating
Eaton Bussmann series KTN-R fuse, 250V, 12A, Non Indicating, Current-limiting, Fast Acting Fuse, Class RK1
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 250 Vac, 250 Vdc, 125A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Non Indicating
Eaton Bussmann series KTN-R fuse, 70/30 brass end cap, 250V, 15A, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 250 Vac, 250 Vdc, 150A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Blade end X blade end, Melamine glass tube, 1.56, Inch, Non Indicating
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 250 Vac, 250 Vdc, 175A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Non Indicating
Eaton Bussmann series KTN-R fuse, 250V, 2A, Non Indicating, Current-limiting, Fast Acting Fuse, Class RK1
Eaton Bussmann series KTN-R fuse, 70/30 brass end cap, 250V, 20A, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 250 Vac, 250 Vdc, 200A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Blade end X blade end, Melamine glass tube, 1.56, Inch, Non Indicating
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 250 Vac, 250 Vdc, 225A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Blade end X blade end, Melamine glass tube, 2.06, Inch, Non Indicating
Eaton Bussmann series KTN-R fuse, 70/30 brass end cap, 250V, 25A, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 250 Vac, 250 Vdc, 250A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Blade end X blade end, Melamine glass tube, 2.06, Inch, Non Indicating
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 250V, 3A, Class RK Ferrule end X ferrule end, Melamine glass tube, 0.56, Inch, Non Indicating
Eaton Bussmann series KTN-R fuse, 70/30 brass end cap, 250V, 30A, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 250 Vac, 250 Vdc, 300A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Non Indicating
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 250V, 35A, Class RK Ferrule end X ferrule end, Melamine glass tube, 0.8 Inch, Non Indicating
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 250 Vac, 250 Vdc, 350A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Non Indicating
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 250V, 4A, Class RK Non Indicating
Eaton Bussmann series KTN-R fuse, 70/30 brass end cap, 250V, 40A, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 250 Vac, 250 Vdc, 400A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Blade end X blade end, Melamine glass tube, 2.06, Inch, Non Indicating
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 250V, 45A, Class RK Non Indicating
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 250 Vac, 250 Vdc, 450A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Non Indicating
Eaton Bussmann series KTN-R fuse, 70/30 brass end cap, 250V, 5A, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann series KTN-R fuse, 70/30 brass end cap, 250V, 50A, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 250 Vac, 250 Vdc, 500A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Blade end X blade end, Melamine glass tube, 2.59, Inch, Non Indicating
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, With minimal time delay, 250V, 6A, Class RK Ferrule end X ferrule end, Melamine glass tube, 0.56, Inch, Non Indicating
Eaton Bussmann series KTN-R fuse, 70/30 brass end cap, 250V, 60A, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 250 Vac, 250 Vdc, 600A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Blade end X blade end, Melamine glass tube, 2.59, Inch, Non Indicating
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 250V, 70A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Non Indicating
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 250V, 8A, Class RK Non Indicating
Eaton Bussmann series KTN-R fuse, 70/30 brass end cap, 250 Vac, 250 Vdc, 80A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Non Indicating, Current-limiting, Fast Acting Fuse, Blade end X blade end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTN-R Fuse, Current-limiting, Fast Acting Fuse, 250 Vac, 250 Vdc, 90A, 200 kAIC at 250 Vac, 100 kAIC at 250 Vdc, Class RK Non Indicating
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 600V, 1A, 200 kAIC at 600 Vac, Class RK Non Indicating
Eaton Bussmann series KTS-R fuse, 70/30 brass end cap, 600V, 10A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 600V, 100A, 200 kAIC at 600 Vac, Class RK Blade end X blade end, Melamine glass tube, Inch, Non Indicating
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 600V, 110A, 200 kAIC at 600 Vac, Class RK Non Indicating
Eaton Bussmann series KTS-R fuse, 600V, 12A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Fast Acting Fuse, Class RK1
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 600V, 125A, 200 kAIC at 600 Vac, Class RK Blade end X blade end, Melamine glass tube, 1.5, Inch, Non Indicating
Eaton Bussmann series KTS-R fuse, 70/30 brass end cap, 600V, 15A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 600V, 150A, 200 kAIC at 600 Vac, Class RK Blade end X blade end, Melamine glass tube, 1.5, Inch, Non Indicating
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 600V, 175A, 200 kAIC at 600 Vac, Class RK Blade end X blade end, Melamine glass tube, 1.5, Inch, Non Indicating
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 600V, 2A, 200 kAIC at 600 Vac, Class RK Non Indicating
Eaton Bussmann series KTS-R fuse, 70/30 brass end cap, 600V, 20A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 600V, 200A, 200 kAIC at 600 Vac, Class RK Blade end X blade end, Melamine glass tube, 1.5, Inch, Non Indicating
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 600V, 225A, 200 kAIC at 600 Vac, Class RK Non Indicating
Eaton Bussmann series KTS-R fuse, 70/30 brass end cap, 600V, 25A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 600V, 250A, 200 kAIC at 600 Vac, Class RK Blade end X blade end, Melamine glass tube, 2, Inch, Non Indicating
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 600V, 275A, 200 kAIC at 600 Vac, Class RK Non Indicating
Eaton Bussmann series KTS-R fuse, 70/30 brass end cap, 600V, 3A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann series KTS-R fuse, 70/30 brass end cap, 600V, 30A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 600V, 300A, 200 kAIC at 600 Vac, Class RK Blade end X blade end, Melamine glass tube, 2, Inch, Non Indicating
Eaton Bussmann series KTS-R fuse, 70/30 brass end cap, 600V, 35A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 600V, 350A, 200 kAIC at 600 Vac, Class RK Non Indicating
Eaton Bussmann series KTS-R fuse, 600V, 4A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Fast Acting Fuse, Class RK1
Eaton Bussmann series KTS-R fuse, 70/30 brass end cap, 600V, 40A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Fast Acting Fuse, Ferrule end X ferrule end, Class RK1, Melamine glass tube
Eaton Bussmann Series KTS-R Fuse, Current-limiting, Fast Acting Fuse, 70/30 brass end cap, 600V, 400A, 200 kAIC at 600 Vac, Class RK Blade end X blade end, Melamine glass tube, 2, Inch, Non Indicating
Eaton Bussmann series KTS-R fuse, 600V, 45A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Fast Acting Fuse, Class RK1
Download Links
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Features and benefits of a three step fuse inventory consolidation program to reduce cost, the number of SKUs and inventory carrying costs.(PDF 3 MB, 10/10/2019)
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Product change notice on fuse labeling for KTN-R, KTS-R Class RK1 Limitron fuses.(PDF 116 KB, 12/12/2019)
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Product change notice on fuse labeling LPN-RK, LPS-RK Class RK1 Low-Peak fuses.(PDF 134 KB, 7/1/2019)
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Product feature and benefits of the 250Vac/dc KWN-R and 600Vdc KWS-R RK1 fuses in ratings from 1 to 60 amps.(PDF 1 MB, 7/1/2019)
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Low-Peak fuses provide ultimate protection in the Fuses Made Simple program. Low-Peak fuses include Class CC, J, L and RK1 UL branch circuit fuses.(PDF 370 KB, 7/1/2019)
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Specifications and technical details on the 250Vac/dc KWN-R and 600Vac/dc KWS-R Class RK1 fuses in ratings up to 60 amps.(PDF 1 MB, 7/1/2019)
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Specifications and technical details on the Bussmann series FRN-R 250 V Class R fuse in ratings up to 600 A.(PDF 323 KB, 7/1/2019)
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Technical specifications for the ultimate protection Class RK1 dual element, current-limiting, time-delay fuses available with optional open fuse indication.(PDF 843 KB, 7/1/2019)
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Technical specifications for the ultimate protection Class RK1 dual element, current-limiting, time-delay fuses available with optional open fuse indication.(PDF 912 KB, 7/1/2019)
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Technical specifications for the ultimate protection Class RK1 dual element, current-limiting, time-delay fuses available with optional open fuse indication.(PDF 1 MB, 7/1/2019)
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Technical specifications for the ultimate protection Class RK1 dual element, current-limiting, time-delay fuses available with optional open fuse indication.(PDF 1 MB, 7/1/2019)
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Details and technical specifications for the 600Vac Limitron fast-acting, current-limiting fuses in ratings from 1 to 600 amps.(PDF 215 KB, 12/12/2019)
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Contact information
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