Bussmann SAMI-3I Dead Front Fu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$90.46
$46.79
Bussmann SAMI-3I SAMI Fuse Cover

Bussmann SAMI-3I Dead Front Fuse Cover for Class J Fuses

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Model: SAMI-3I
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$46.79
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Bussmann SAMI-3I Dead Front Fuse Cover for Class J Fuses

The Bussmann SAMI-3I is a dead-front fuse cover engineered to shield live fuse terminals from accidental contact in Class J fuse installations. Rated 600 Vac / 600 Vdc and sized for 65-100A Class J fuses, this non-indicating cover snaps over the fuse holder to provide a protective barrier for personnel working around energized equipment. It is purpose-built for use with Class J type fuses in commercial and industrial power distribution equipment, helping maintain a safer, more organized fuse panel during routine inspection, maintenance, and troubleshooting.

Key Features

  • Amperage Rating: Rated for 65-100A Class J fuses, matching the fuse holder it protects.
  • Voltage Rating: Rated 600 Vac and 600 Vdc for use in demanding power distribution equipment.
  • Class J Compatibility: Designed for use with Class J type fuses, ensuring a correct, secure fit over the fuse holder.
  • Dead Front Design: Fuse Cover, Dead Front construction shields live fuse terminals from accidental contact.
  • Non-Indicating: Non indicating cover design, providing a simple protective barrier without blown-fuse indication.
  • Compact Footprint: Measures 4.88 IN long, 1.15 IN wide, and 1.58 IN high, and weighs .5 LB, fitting neatly over standard Class J fuse blocks.

Technical Specifications

  • Amperage Rating: 65-100A
  • Class: Class J
  • Fuse Indicator: Non Indicating
  • Used With: Used with Class J Type Fuses
  • Voltage Rating: 600 Vac, 600 Vdc
  • Product Type: Fuse Cover, Dead Front
  • Product Details: Fuse Cover, Dead Front
  • Product Length: 4.88 IN
  • Product Height: 1.58 IN
  • Product Width: 1.15 IN
  • Product Weight: .5 LB

Typical Applications

  • Class J Fuse Holders and Fuse Blocks
  • Commercial and Industrial Power Distribution Equipment
  • Panelboard and Switchgear Fuse Protection
  • Dead-Front Safety Barriers for Energized Equipment
  • Facilities Using 65-100A Class J Fuses
  • Electrical Rooms and Switchgear Requiring Touch-Safe Fuse Access

Why Bussmann?

Bussmann builds circuit protection components that electricians and engineers rely on for consistent, code-compliant performance. The SAMI-3I dead front cover is sized specifically for 65-100A Class J fuses and rated 600 Vac / 600 Vdc, giving crews a purpose-fit barrier over live fuse terminals instead of an improvised guard. Choosing genuine Bussmann accessories helps keep Class J fuse installations safe, organized, and ready for inspection across commercial and industrial facilities.

Manufacturer Resources

Product Specs

Amperage Rating:
65-100A
Class:
Class J
Fuse Indicator:
Non Indicating
Used With:
Used with Class J Type Fuses
Voltage Rating:
600 Vac, 600 Vdc
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse Cover, Dead Front
Product Length:
4.88 IN
Product Details:
Fuse Cover, Dead Front
Product Height:
1.58 IN
Product Weight:
.5 LB
Product Width:
1.15 IN

Bussmann SAMI-3I – Frequently Asked Questions

1) Will the Bussmann SAMI-3I cover fit my Class J fuses?
The SAMI-3I is sized for Class J fuses in the 65 to 100 amp range, and that is the only fuse class it is built for. If your block carries Class J fuses under 65A or above 100A, this is the wrong cover size, and if the block holds Class R, Class T, or Class CC fuses, the SAMI-3I will not fit them at all.
2) How much room do I need in the panel to install a SAMI fuse cover over a Class J block?
Plan on 4.88 inches of length, 1.15 inches of width, and 1.58 inches of height per cover. In a multi-pole block the covers sit side by side, so the 1.15 inch width is what determines whether adjacent poles and wiring gutters have clearance once the covers are snapped on. Each cover weighs about .5 lb.
3) Do I need one SAMI-3I per fuse or one per disconnect?
One per fuse. The cover snaps over a single fuse position, so a three-phase 100A Class J block takes three SAMI-3I covers to be fully dead front. Order by pole count, not by enclosure.
4) What voltage can a SAMI-3I dead front fuse cover be used at?
Rated 600 Vac and 600 Vdc, so it covers the usual 480V and 600V three-phase distribution gear as well as DC applications at the same level. It matches the voltage class of the Class J fuse it sits over.
5) Does the SAMI-3I show me when a fuse has blown?
No. The SAMI-3I is a non-indicating cover, so it is a plain touch-safe barrier with no blown-fuse indication window or light. Troubleshooting still means pulling the cover and testing the fuse. If crews rely on visual blown-fuse indication in the panel, specify an indicating fuse or an indicating-style SAMI instead.
6) I'm standardizing fuse covers across a facility. What do I specify to order the right SAMI?
For Class J at 65 to 100 amps, the part number is SAMI-3I from Bussmann. The SAMI family is split by fuse class and amp band, so a facility running several amp ranges of Class J needs more than one SAMI part number. Confirm each block's fuse class and amp rating before you build the order, then count fuse positions rather than panels.
How fast can I get the Bussmann SAMI-3I 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 SAMI-3I come with a warranty?
Absolutely. The Bussmann SAMI-3I 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 SAMI-3I?
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 SAMI-3I from ZenSupply?
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