Bussmann SC Series Class G Rej...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$16.80
Bussmann SC Series Class G Rejection-Style Time-Delay Fuse, Ferrule End

Bussmann SC Series Class G Rejection-Style Time-Delay Fuse, Ferrule End

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Model: SC-15

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

$16.80
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Bussmann SC Series Class G Rejection-Style Time-Delay Fuse, Ferrule End

The Bussmann SC Series Current Limiting Time-Delay Fuse is a Class G rejection-style, ferrule end fuse family built for motor circuits, control panels, and industrial power distribution. This SC Series line is available in ratings from 1A to 60A (1A, 3A, 5A, 15A, 20A, 25A, 30A, 50A, 60A) and carries a dual 480VAC/300VDC voltage rating, giving electrical contractors and facility managers one rejection-style platform for both AC motor circuits and DC control applications. Current limiting design and 12-second time delay at 200% overload deliver dependable overcurrent protection while allowing normal motor starting.

Key Features

  • Amp Rating Range: Available across the SC Series in 1A, 3A, 5A, 15A, 20A, 25A, 30A, 50A, and 60A ratings to match circuit current requirements.
  • Dual Voltage Rating: 480VAC/300VDC capability supports AC motor circuits and DC control applications on a single fuse platform.
  • High Interrupt Rating: 100 kAIC at 480VAC and 10 kAIC at 300VDC for reliable fault clearing in high-current applications.
  • Current Limiting Technology: Reduces peak let-through current and energy, minimizing damage to downstream equipment.
  • Time Delay Characteristics: 12-second delay at 200% overload allows motor starting currents while protecting against sustained overloads.
  • Class G Rejection Style: Prevents installation of incorrect fuse types, supporting proper circuit protection and NEC compliance.
  • Ferrule End Connections: Seats securely in Class G fuse holders for a reliable mechanical and electrical connection.
  • RoHS Compliant Construction: Meets environmental standards for safe electrical installations.

Certifications & Compliance

  • RoHS Compliant

Technical Specifications

  • Product Type: Fast Acting Fuses
  • Voltage Rating: 480VAC/300VDC
  • Interrupt Rating: 100 kAIC at 480VAC, 10 kAIC at 300VDC
  • Time Delay: 12 seconds at 200% overload
  • Dimensions: 1.62" length x 0.41" diameter
  • Design: Non-indicating, current limiting
  • Weight: 0.18 lb

Typical Applications

  • Motor Protection Circuits: Pumps, conveyors, and HVAC equipment requiring time-delay protection
  • Control Panel and Automation Systems
  • Commercial Lighting Circuit and Ballast Protection
  • Industrial Machinery and Production Lines
  • DC Control Circuits and Battery Systems (300VDC)
  • Electrical Panels and Distribution Boards Requiring Class G Rejection-Style Protection

Why Bussmann?

Bussmann engineers the SC Series around current limiting technology and Class G rejection-style construction, reducing peak let-through energy and preventing installation of incorrect fuse types across the 1A-60A range. With a dual 480VAC/300VDC rating, 100 kAIC/10 kAIC interrupt ratings, and RoHS compliant construction, this ferrule end fuse family gives electrical contractors and industrial facilities the consistent, code-compliant overcurrent protection they rely on for motor and control circuit applications.

Manufacturer Resources

Product Specs

Class:
Class G
Special Features:
Rejection style
Packaging Type:
Standard
Department:
Electrical
Product Type:
Time Delay Fuse
Series:
SC
Voltage Rating:
480VAC/300VDC
Amperage Rating:
1A - 60A
Configuration:
Class G Rejection Style
Standards:
RoHS
Product Group:
Fuses
Product Subgroup:
Time Delay Fuses

Bussmann SC-15 – Frequently Asked Questions

1) Will a Bussmann SC fuse fit my existing Class G fuse holder?
The Bussmann SC Series is a Class G rejection-style ferrule fuse, so it seats in Class G holders and blocks. The rejection feature is the point: a Class G holder is sized so only the correct Class G fuse for that amp band drops in, which keeps someone from putting a higher-rated or wrong-class fuse in the circuit. If your holder is a Class H/K, Class J, or Class CC holder, the SC will not fit and you need the fuse matching that holder's class.
2) Can I use a Bussmann SC fuse on a 240V or 208V motor circuit, and does it work on DC?
Yes on both. The SC Series carries a 480VAC/300VDC rating, and a fuse may be applied at or below its voltage rating, so 120V, 208V, 240V and 480V AC circuits are all within it. The DC rating is the part most Class G fuses do not have: 300VDC lets the same fuse cover battery systems and DC control circuits. Interrupting capacity is 100 kAIC at 480VAC and 10 kAIC at 300VDC, so check the DC number against your available fault current, it is much lower than the AC figure.
3) Will a Bussmann SC time-delay fuse hold in on motor inrush without nuisance blowing?
That is what the time delay is for. The SC Series holds a 200% overload for 12 seconds before clearing, which rides through the starting current of a motor, a transformer, or a ballast instead of opening on it. Pumps, conveyors and HVAC equipment are the usual applications. If you size it like a fast-acting fuse, at or barely above running amps, you will still get nuisance openings on start, so size it against the motor starting characteristic rather than the nameplate FLA alone.
4) What amp ratings does the Bussmann SC Series come in?
Thirteen ratings, ordered by amp: SC-1, SC-3, SC-5, SC-10, SC-15, SC-20, SC-25, SC-30, SC-35, SC-40, SC-45, SC-50 and SC-60. The part number is the series plus the amp value, so a 20 amp is SC-20. Worth knowing before you order: Class G holders are amp-banded, and the rejection sizing means a 60 amp SC will not physically go into a holder built for a lower band. Match the fuse to the band your holder or block is rated for.
5) What is the difference between a current-limiting fuse and an ordinary one, and does it matter for my panel?
It matters if your equipment has a low withstand or interrupting rating. A current-limiting fuse like the SC Series opens fast enough within the first fault half-cycle to cut off the peak current before it fully develops, so the let-through current and energy reaching the downstream contactor, starter or wiring is far below the prospective fault current. On a 480VAC circuit the SC clears up to 100 kAIC. Practically, that is how a starter or control component rated well below the available fault current can still be protected.
6) How do I tell if a Bussmann SC fuse has blown?
By testing it, not by looking at it. The SC Series is non-indicating, so there is no pop-up pin or window to show an open element. Pull the fuse and check continuity with a meter, or measure voltage across the holder with the circuit live and the load connected: full line voltage across an installed fuse means it is open. If your crew needs visual confirmation without pulling fuses, you want an indicating fuse or a blown-fuse indicator on the block instead.
7) Can I use one Bussmann SC fuse type across my whole control panel and motor circuits?
For a facility standardizing on one platform, the SC Series covers 1A through 60A on a single Class G rejection-style body with one voltage rating, 480VAC/300VDC. That means the same fuse family protects the small control and instrument circuits at 1A, 3A and 5A and the larger motor and distribution circuits up to 60A, with one holder type and one stocking pattern. The part number tracks the amp value directly, so a storeroom list is just SC plus the rating.
8) What size is a Class G SC fuse physically?
The SC Series measures 1.62 inches long by 0.41 inch diameter, ferrule end. Class G bodies vary in length by amp band, so confirm the space in your holder or fuse block matches before you commit to a panel layout, particularly in a tight control enclosure where the cover clearance over the block is the limiting dimension.
9) Are Bussmann SC fuses RoHS compliant for a spec that requires it?
Yes. The SC Series is built RoHS compliant, which is the item most institutional and government specs call out on electrical components. That is the compliance statement carried on the SC Series.
How fast can I get the Bussmann SC-15 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 SC-15 come with a warranty?
Absolutely. The Bussmann SC-15 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 SC-15?
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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