Bussmann S501-R Series Fast-Ac...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.27
Bussmann S501-R Series Fast-Acting Fuse, High-Breaking Capacity

Bussmann S501-R Series Fast-Acting Fuse, High-Breaking Capacity

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Model: S501-5-R

In Stock (leaves warehouse same day if ordered before 3pm ET)

$4.27
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Bussmann S501-R Series Fast-Acting Fuse, High-Breaking Capacity

The Bussmann S501-R Series is a family of fast-acting, high-breaking capacity fuses engineered to deliver dependable overcurrent protection for electrical circuits requiring rapid response to fault conditions. Built to the European (IEC) standard, this ceramic tube fuse family is available in ratings from 5A to 10A (S501-5-R through S501-10-R), pairing a fast-acting fusible element with a high-breaking capacity rating so it can safely interrupt high fault currents while helping protect connected equipment, wiring, and components from damaging overcurrent conditions. Every member of the S501-R Series uses a ferrule end x ferrule end connection configuration and carries an interrupt rating of 1500 amperes at 50 hertz, giving electrical professionals a consistent, code-aware option across the full amperage range. As part of the broader Bussmann circuit protection lineup, this series is built to help maintain safe, reliable operation in commercial and industrial electrical systems where quick clearing of short-circuit and overload conditions is critical to overall system safety and equipment longevity.

Key Features

  • Available Ratings: The S501-R Series spans 5A to 10A (S501-5-R, S501-10-R), allowing the correct rating to be selected for the specific circuit requirement.
  • Fast-Acting Response: The fast-acting characteristic of this fuse allows it to respond quickly to overcurrent and short-circuit events, helping minimize the potential for damage to downstream equipment, wiring, and connected components.
  • High-Breaking Capacity: Engineered with a 1500 ampere interrupt rating, this fuse is built to safely interrupt high fault currents, supporting reliable performance even under demanding fault conditions.
  • Ceramic Tube Construction: The ceramic tube body provides a durable, non-indicating fuse element housing suited for demanding electrical environments.
  • Ferrule End Connection: Configured as ferrule end x ferrule end for straightforward installation into compatible fuse holders and blocks.
  • European (IEC) Design: Built to European (IEC) standards, supporting use in systems and equipment specified to IEC requirements, including 50 hertz applications.
  • Non-Indicating Design: This fuse is a non-indicating type, providing standard overcurrent protection without a blown-fuse indicator.
  • Bussmann Quality: Manufactured by Bussmann, a recognized and trusted name in circuit protection products for commercial, industrial, and electrical distribution applications.

Technical Specifications

  • Connection Type: Ferrule End X Ferrule End
  • Frequency: 50 hertz
  • Interrupt Rating: 1500 amperes
  • Indicator: Non Indicating
  • Product Details: European (IEC)
  • Product Material: Ceramic Tube

Typical Applications

  • Overcurrent and Short-Circuit Protection
  • Industrial Control Panels and Power Distribution Equipment
  • Commercial and Industrial Electrical Systems
  • Motor and Branch Circuit Protection
  • Equipment Requiring Fast-Acting, High-Breaking Capacity Fuse Protection
  • European (IEC) Specified Electrical Systems

Why Bussmann?

Bussmann has long been recognized as a trusted supplier of circuit protection products for commercial and industrial electrical systems. The S501-R Series fast-acting, high-breaking capacity fuses reflect that standard of performance, offering electrical professionals a dependable, ceramic tube fuse option across a range of amperages for protecting circuits, equipment, and wiring from the effects of overcurrent and fault conditions. Choosing a Bussmann fuse helps ensure your circuit protection components are built to perform consistently when it matters most, supporting safer and more reliable electrical systems for demanding commercial and industrial use.

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Manufacturer Resources

Product Specs

Product Type:
Fast-Acting Fuse
Department:
Electrical
Product Subgroup:
Fuses
list_batch:
BUSS-20260919
Connection Type:
Ferrule End X Ferrule End
Frequency:
50 hertz
Package Type:
Standard
Interrupt Rating:
1500 amperes
Indicator:
Non Indicating
Product Details:
European (IEC)
Product Material:
Ceramic Tube
Standards:
European (IEC)
Product Group:
Circuit Protection

Bussmann S501-5-R – Frequently Asked Questions

1) What amp ratings does the Bussmann S501-R fuse come in?
Two ratings are offered in the S501-R Series: the S501-5-R at 5A and the S501-10-R at 10A. Pick the rating to match the circuit you are protecting; everything else (ceramic body, ferrule ends, 1500A interrupting rating) is the same across both.
2) Will the S501-R fuse fit a standard clip-style fuse holder or block?
It is built as ferrule end x ferrule end, so it drops into any holder or block that grips a cylindrical ferrule cartridge fuse of the matching body size. There are no blade or bolt-down tags on it.
3) Is the Bussmann S501-R an IEC fuse or a North American UL-style fuse?
The S501-R is a European (IEC) design, rated at 50 hertz. If your panel or OEM equipment is specified to IEC requirements, it matches. For a 60 Hz North American branch circuit built to UL standards, specify a fuse listed to those requirements instead.
4) What does the 1500 amp interrupting rating on the S501-R mean for my panel?
It is the maximum fault current the fuse can safely clear. The S501-R is rated to break 1500 amperes at 50 hertz, so the available fault current at the point of installation must not exceed that. On a control circuit or equipment branch that is usually fine; on a feeder near a large transformer with higher available fault current, you need a higher breaking capacity fuse.
5) Can you tell by looking whether an S501-R fuse has blown?
No. It is a non-indicating type in an opaque ceramic tube, so there is no pop-up pin or window to read. You will need a meter for continuity, or a holder with its own indication, to confirm a blown element.
6) Is a fast-acting fuse the right choice, or do I need a time-delay fuse?
Fast-acting is what the S501-R gives you: it opens quickly on overcurrent and short circuit, which suits electronics, control circuits and equipment that cannot tolerate let-through energy. If you are feeding a motor or transformer with a large inrush on start-up, a fast-acting element will nuisance-blow and you want a time-delay fuse of the same body size instead.
7) Can I mix a 5A and a 10A S501-R in the same equipment if I am standardizing spares?
Both the S501-5-R and S501-10-R share the same ceramic ferrule-end construction and the same 1500A interrupting rating, so they stock and handle identically, but they are not interchangeable in service. Each circuit must get the amp rating it was designed for; fitting a 10A where a 5A is specified removes the protection the designer intended.
8) Why is the S501-R ceramic instead of glass?
The ceramic tube body handles the arc energy of a high fault interruption better than glass and will not shatter the way a glass cartridge can, which is why it carries the 1500 amp breaking capacity. The trade-off is you cannot see the element, so it is non-indicating.
How fast can I get the Bussmann S501-5-R 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 S501-5-R come with a warranty?
Absolutely. The Bussmann S501-5-R 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 S501-5-R?
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
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