Bussmann Eaton JCY Series E-Ra...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,597.01
Bussmann Eaton JCY Series E-Rated Medium Voltage Fuse, Class E, 5500V

Bussmann Eaton JCY Series E-Rated Medium Voltage Fuse, Class E, 5500V

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Model: JCY-10E

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

$2,597.01
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Bussmann Eaton JCY Series E-Rated Medium Voltage Fuse, Class E, 5500V

The Bussmann Eaton JCY Series E-Rated Medium Voltage Fuse is a Class E, current-limiting fuse engineered for reliable overcurrent protection in medium voltage power distribution systems. Rated 5500V with a 60 kAIC interrupting capacity, this Non Indicating, ferrule end to ferrule end design is built for demanding industrial and commercial installations where fast, predictable fuse operation is essential. The JCY Series is available in amp ratings from 1A to 25A, allowing electrical professionals to match the correct fuse to specific circuit protection requirements across a range of medium voltage equipment. As part of the Eaton Bussmann portfolio, this fuse is intended for use by qualified personnel in accordance with equipment manufacturer specifications and applicable electrical codes.

Key Features

  • Amp Rating Range: The JCY Series is offered from 1A up to 25A, giving specifiers flexibility to match protection levels to circuit load and fault-current requirements.
  • Voltage Rating: 5500V E-Rated construction is suited for medium voltage fuse applications where E-rated coordination with fuse holders and switches is required.
  • Current Limiting: Current-limiting operation restricts fault current let-through, helping to reduce thermal and mechanical stress on downstream equipment during a fault event.
  • Interrupting Capacity: A 60 kAIC interrupting rating supports dependable performance under high fault-current conditions common in medium voltage systems.
  • Non Indicating Design: This fuse is built to the Non Indicating configuration of the Bussmann JCY Series specification, without a blown-fuse indicator.
  • Ferrule End Terminations: A ferrule end X ferrule end configuration provides straightforward compatibility with medium voltage fuse mountings designed for this termination style.
  • Class E Fuse: Class E fuse body construction is intended for medium voltage circuit protection duty in industrial and commercial power systems.
  • Single Element: Single-element, 1-barrel fuse body construction supports the fuse's current-limiting, non-indicating operation.

Technical Specifications

  • Element: Single
  • Packaging Type: Standard
  • Barrels: 1
  • Compliances: Contact factory
  • Product Height: 11.5 in

Typical Applications

  • Medium Voltage Switchgear Protection
  • Transformer Primary Circuit Protection
  • Motor Circuit Protection
  • Capacitor Bank Protection
  • Industrial and Commercial Power Distribution Systems
  • Medium Voltage Fuse Holder and Switch Applications

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the JCY Series E-Rated medium voltage fuse continues that standard with Class E, current-limiting construction rated for 5500V and 60 kAIC. The ferrule end to ferrule end design and Non Indicating, single-element operation make this fuse a dependable choice for medium voltage protection schemes where consistent, code-compliant performance across the 1A to 25A rating range is required.

Manufacturer Resources

Product Specs

Class:
Class E
Interrupt Rating:
60 kAIC
Element:
Single
Packaging Type:
Standard
Fuse Indicator:
Non Indicating
Barrels:
1
Connection:
Ferrule end x ferrule end
Compliances:
Contact factory
Department:
Electrical
Voltage Rating:
5500V
Product Height:
11.5 in
Product Type:
Fuse
Series:
JCY
Connection Type:
Ferrule End
Product Group:
Fuses
Product Subgroup:
Other Fuses

Bussmann JCY-10E – Frequently Asked Questions

1) What amp ratings does the Bussmann JCY E-rated medium voltage fuse come in?
Eight E-rated ampacities are offered across the JCY Series: 1A (JCY-1E), 2A (JCY-2E), 3A (JCY-3E), 5A (JCY-5E), 10A (JCY-10E), 15A (JCY-15E), 20A (JCY-20E) and 25A (JCY-25E). The E suffix is part of the catalog number and signals E-rated coordination, so order by the full number rather than the amp value alone.
2) Will a JCY fuse fit my 5 kV switchgear fuse clips?
The JCY is built ferrule end x ferrule end, so it drops into medium voltage mountings and holders prepped for ferrule-style terminations, not into blade or bolt-in clips. Overall fuse height is 11.5 inches, which is the dimension to check against the space between your clips before ordering.
3) Is the Bussmann JCY rated for a 4160V system?
Yes. The JCY carries a 5500V rating, which covers nominal 4160V medium voltage distribution, and it interrupts up to 60 kAIC. Never apply it above its 5500V rating, and confirm your available fault current sits under 60 kA at the fuse location.
4) Does the JCY fuse have a blown fuse indicator or striker pin?
No. The JCY is a non-indicating design, with no blown-fuse indicator and no striker to trip a switch mechanism. If your switch relies on a striker pin for single-phase trip, this is the wrong fuse for that duty. Where you just need a visual check, plan on testing the fuse or using a separate indicating device in the gear.
5) What does Class E mean on a medium voltage fuse, and how is it different from an R-rated fuse?
Class E, E-rated fuses are general-purpose current-limiting fuses sized by continuous current and intended for transformer primary, feeder, capacitor bank and switchgear protection. R-rated fuses are a different animal, sized for motor starter back-up short-circuit protection and coordinated with a contactor and overload relay rather than carrying the load rating themselves. The JCY is the Class E, E-rated type.
6) Why choose a current-limiting fuse like the JCY for transformer primary protection?
A current-limiting fuse clears the fault before it reaches its peak, so the let-through energy hitting the transformer and downstream gear is far lower than it would be with a non-current-limiting expulsion fuse. The JCY does that at 5500V with a 60 kAIC interrupting rating, which is why it suits switchgear, transformer primaries, motor circuits and capacitor banks where fault current is high.
7) Can I use the Bussmann JCY indoors in a metal-enclosed switchgear compartment?
Yes, that is its intended home. The JCY is a single-element, single-barrel current-limiting fuse for medium voltage switchgear, fuse holders and switch applications in industrial and commercial distribution. Because it is current-limiting rather than expulsion type, it clears without venting arc products, which is what makes it suitable for enclosed gear.
8) How do I size a JCY E-rated fuse for a transformer primary?
Size by the primary full-load current of the transformer and the inrush it draws on energizing, then pick the next standard E rating that rides through inrush without nuisance operation while still protecting the primary conductors. The range available is 1A to 25A in E ratings, so this family covers small distribution and control power transformers rather than large feeders. Coordinate the selection with the secondary protective device and the equipment manufacturer's requirements.
9) Do JCY fuses ship individually or in multi-packs?
Packaging on the JCY Series is standard, and each catalog number covers one fuse. Fuses are almost always replaced a full set of three at a time on a three-phase circuit, so order in multiples of three if you are changing out a blown phase.
How fast can I get the Bussmann JCY-10E 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 JCY-10E come with a warranty?
Absolutely. The Bussmann JCY-10E 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 JCY-10E?
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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