Bussmann NOS-8 Eaton series NOS fuse, Supplemental one-time fuse, Non current limiting, Light duty circuit locations, 8 A, Class H,Class K5, Non-indicating, Ferrule end x ferrule end, 50 kAIC at 600 Vac, Standard, 10, 600 V.
- Amp rating: 8 A
- Voltage rating: 600 V
- Class: Class K5
- Interrupt rating: 50 kAIC at 600 Vac
- Product type: Fuse
- Dimensions (L x W x H): 0.81 x 0.81 x 5 in
Genuine Bussmann part number NOS-8.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 8A
- Class:
- Class K5
- Compliances:
- CE Marked
- Connection:
- Ferrule end x ferrule end
- Fuse Indicator:
- Non-indicating
- Interrupt Rating:
- 50 kAIC at 600 Vac
- Packaging Type:
- Standard
- Product Height:
- 5 in
- Product Length Depth:
- .81 in
- Product Weight:
- .153 lb
- Product Width:
- .81 in
- Special Features:
- Non current limiting
- Voltage Rating:
- 600V
- Department:
- Electrical
- Item Quantity:
- 10
- Product Type:
- Fuse
- Product Group:
- Circuit Protection
- Product Subgroup:
- Fuses
- Product Length:
- 0.81 in
Bussmann NOS-8 – Frequently Asked Questions
1) What is the difference between a Class H/K5 one-time fuse like the NOS-8 and a Class RK5 fuse?
Two things matter. The NOS-8 is non current limiting with a 50 kAIC interrupting rating, while Class RK5 is current limiting with a 200 kAIC rating. The other difference is physical: Class R fuses have a rejection groove so they will not fit into a non rejection Class H holder, but a Class H/K5 ferrule fuse like this one will drop into a Class R rejection clip. So if a panel was built for Class R, fitting a one-time fuse defeats the rejection feature that keeps a lower rated fuse out.
2) Is the NOS-8 appropriate for motor circuits with inrush?
The NOS series is a supplemental one-time fuse intended for light duty circuit locations, not a time-delay motor protection fuse. Motor starting inrush generally calls for a dual element time-delay fuse. Use the NOS-8 where an 8 amp, 600 volt non current limiting fuse covers lighting, control or general light duty loads.
3) Can I tell by looking whether a NOS-8 fuse is blown?
No. The NOS-8 is non-indicating, so there is no pop-up pin or window to show it has opened. You check it with a meter across the ferrules for continuity, or by pulling the fuse. For MRO shops that want visual indication on a disconnect, specify an indicating fuse instead.
4) Is the NOS-8 renewable or do I replace it after it blows?
It is a one-time fuse. Once the element opens it is replaced, not re-linked. That is why NOS fuses are typically bought in quantity for light duty circuit locations, and the NOS-8 is packaged 10 to a standard pack.
5) What is the exact part number and is it genuine Bussmann?
The part is Bussmann NOS-8, an Eaton Bussmann series NOS one-time fuse rated 8 A at 600 V, Class K5, with ferrule ends. It is CE Marked. Order by NOS-8 to get the 8 amp rating in that series.
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Does the Bussmann NOS-8 come with a warranty?
Absolutely. The Bussmann NOS-8 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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