Bussmann SA-1 Eaton Series Typ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$62.41
$12.41
Bussmann SA-1 Eaton series Type S plug fuse, plug fuse, 1 A, 10 kAIC (RMS Symmetrical) interrupt rating

Bussmann SA-1 Eaton Series Type S Plug Fuse, 1A, 10 kAIC Interrupt Rating

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Model: SA-1
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Bussmann SA-1 Eaton Series Type S Plug Fuse, 1A, 10 kAIC Interrupt Rating

The Bussmann SA-1 is an Eaton Bussmann series Type S plug fuse engineered for dependable branch-circuit overcurrent protection in panels built around the Type S fuse platform. Rated at 1 A with a 10 kAIC (RMS Symmetrical) interrupt rating, this plug fuse is sized for precise, low-amperage circuit protection where a Type S fuse holder or adapter is already installed. Its compact, low-profile construction makes it a straightforward fit in residential and light commercial fuse panels, and the Eaton Bussmann series pedigree behind it means it is manufactured to the same quality standard electrical professionals expect from Bussmann overcurrent protection products.

Key Features

  • Amperage Rating: 1 A rating delivers precise overcurrent protection for low-amperage branch circuits that require a tightly matched fuse size.
  • Interrupt Rating: 10 kAIC (RMS Symmetrical) interrupt rating supports reliable clearing of fault current without nuisance failure of the fuse element.
  • Type S Design: Type S plug fuse configuration is intended for use with compatible Type S fuse holders and adapters already installed in the panel.
  • Eaton Bussmann Series Construction: Manufactured as part of the Eaton Bussmann series fuse lineup for consistent, code-compliant overcurrent protection performance.
  • Compact Footprint: Measures approximately .85 IN in height and .98 IN in both length/depth and width, at approximately .3 LB, for a low-profile fit in standard plug-fuse panels.
  • Direct Replacement Fit: Sized to drop into existing Type S fuse positions, simplifying maintenance and fuse replacement for facilities already standardized on the Type S platform.

Technical Specifications

  • Amperage Rating: 1A
  • Compliances: Contact factory
  • Product Height: .85 IN
  • Product Length Depth: .98 IN
  • Product Weight: .3 LB
  • Product Width: .98 IN

Typical Applications

  • Residential and Light Commercial Fuse Panels
  • Type S Fused Branch-Circuit Protection
  • Replacement Fuse for Existing Type S Fuse Holders
  • Low-Amperage Lighting and Control Circuit Protection
  • Panelboard and Load Center Overcurrent Protection
  • Maintenance and Fuse Replacement in Type S Standardized Facilities

Why Bussmann?

Bussmann, as part of the Eaton Bussmann series, is built for consistent, code-compliant overcurrent protection, and the SA-1 carries a 10 kAIC (RMS Symmetrical) interrupt rating to back up its performance under fault conditions. For electrical professionals and facility owners maintaining panels on the Type S fuse platform, the Bussmann SA-1 offers a precisely rated, 1 A plug fuse that fits existing Type S holders without requiring panel modification, backed by the reliability associated with the Eaton Bussmann series name.

Manufacturer Resources

Product Specs

Amperage Rating:
1A
Compliances:
Contact factory
Interrupt Rating:
10 kAIC
Product Height:
.85 IN
Product Length Depth:
.98 IN
Product Weight:
.3 LB
Product Width:
.98 IN
Department:
Electrical
Product Type:
Plug Fuse
Product Group:
Circuit Protection
Product Subgroup:
Fuses
Product Length:
0.98 in

Bussmann SA-1 – Frequently Asked Questions

1) Will a Bussmann SA-1 fuse screw into a standard Edison-base fuse socket?
No. The SA-1 is a Type S plug fuse, which uses the rejection base rather than the older Edison screw base. It goes into a Type S fuse holder, or into an Edison socket that already has a matching Type S adapter installed. If your panel has plain Edison sockets with no adapters, you need the 1 A Type S adapter in the socket first, or an Edison-base plug fuse instead.
2) Does the amperage of a Type S adapter have to match the SA-1 fuse?
Yes, and this is the detail that trips people up. Type S is a rejection system: a 1 A fuse only threads into an adapter of the matching Type S rating. The SA-1 is rated 1 A, so if an oversized adapter is already screwed into the socket, the fuse will not seat and you cannot force it. That rejection feature is the whole point of the platform, since it stops someone dropping a 30 A fuse into a circuit rated far lower.
3) What is the SA-1 fuse actually used for at only 1 amp?
A 1 A plug fuse is for low-amperage work, not general branch circuits feeding receptacles. Typical uses are lighting and control circuit protection, and panelboard or load center positions where a tightly matched small fuse is required. For a 15 or 20 A general-purpose branch circuit in an older fuse panel, you want the corresponding higher-rated Type S fuse, not this one.
4) Can I use the SA-1 to replace an existing 1 amp Type S fuse without changing anything else?
Yes. The SA-1 is sized to drop straight into an existing Type S fuse position, so for a facility already standardized on the Type S platform it is a direct swap with no adapter change and no panel work, provided the position in question is the 1 A one.
5) How much room does a Type S plug fuse like the SA-1 need in the fuse box?
It is a low-profile part: .85 IN height and .98 IN in both length/depth and width, at about .3 LB. That footprint drops into standard plug-fuse positions without panel modification, so a cover plate that closed over the fuse it replaces will still close.
6) What part number do I order for the Bussmann 1 amp Type S plug fuse?
Order it by Bussmann part number SA-1. It is an Eaton Bussmann series Type S plug fuse, 1 A, 10 kAIC, and the part number is also the model designation, so there are no suffixes or options to specify.
How fast can I get the Bussmann SA-1 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bussmann SA-1 come with a warranty?
Absolutely. The Bussmann SA-1 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Bussmann SA-1?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Bussmann SA-1 from ZenSupply?
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