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Mersen
Starting at
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Mersen DFC Series Class J Dead-Front Fuse Cover, 600VAC, 60A, LED Indicator
The Mersen DFC Series dead-front fuse cover snaps directly onto individual fuses installed in fuse blocks, shielding exposed live clips and terminals to reduce the risk of accidental contact by personnel. Rated 600VAC / 600V DC UL and built for 1-Pole, 60A applications, this DFC cover is sized to fit Class G, H, J, K, R, CC, or midget fuses and includes an LED indication system that illuminates orange when the fuse has opened. A blank label is provided with each cover so technicians can record circuit or fuse information at a glance.
Key Features
- Dead-Front Safety Design: Fully covers exposed live fuse clips and terminals to reduce the chance of accidental personnel contact.
- Universal Fuse Fit: Sized to accommodate Class G, H, J, K, R, CC, or midget fuses in standard fuse blocks.
- LED Open-Fuse Indication: Indication System Type is LED; an orange indicator light illuminates to signal an open fuse, speeding fault diagnosis.
- Reusable Construction: Simply detach from an open fuse and reattach to its replacement, eliminating the need to purchase a new cover with every fuse change.
- Field-Trimmable Ends: Cover ends can be cut to accommodate existing wiring, safety switches, or special installation conditions.
- Electrical Rating: 600VAC / 600V DC UL rated voltage with a 60A ampere rating and 1-Pole configuration.
- Labeling Provision: Includes a blank label on each unit for writing in circuit or fuse identification.
Technical Specifications
- Indication System Type: LED
- Indication System: Yes
- Ampere Rating: 60 A
- Rated Voltage DC UL: 600 V
- Rated Voltage AC UL: 600 V
- Number of Poles: 1-Pole
- Packaging: 3 EA
Typical Applications
- Fuse Blocks and Fusible Disconnect Assemblies
- Panelboards and Motor Control Centers
- Industrial and Commercial Electrical Distribution
- Safety Switches Requiring Live-Part Coverage
- Renovation and New Construction Electrical Panels
Why Mersen?
Mersen's DFC Series dead-front fuse covers combine 600VAC / 600V DC UL rated construction with a reusable, field-trimmable design built for real-world panel maintenance. The LED open-fuse indication system helps electrical personnel quickly identify a blown fuse without removing protective covers, supporting safer, more efficient troubleshooting in Class G, H, J, K, R, CC, and midget fuse installations.
Manufacturer Resources
Mersen Product Catalog
Product Specs
- list_batch:
- MERSEN-20260825
- Product Type:
- Fuse Cover
- Voltage Rating:
- 600V
- Amperage Rating:
- 60A
- Configuration:
- 1-Pole
- Department:
- Electrical
- Product Group:
- Circuit Protection
- Product Subgroup:
- Fuse Holders & Blocks
Mersen DFC-6I – Frequently Asked Questions
1) Will the Mersen DFC-6I fuse cover fit Class J fuses, or only one specific class?
The DFC-6I is sized to fit Class G, H, J, K, R, CC and midget fuses mounted in standard fuse blocks, so it is not locked to a single fuse class. It snaps onto the individual fuse rather than bolting to the block, which is what lets one cover serve that range. The limit you have to respect is electrical: 60A and 600V.
2) Can I use a Mersen DFC-6I dead-front cover on a 480V three-phase disconnect?
Yes. The cover carries a 600VAC and 600V DC UL rated voltage, which covers 480V service. It is a 1-Pole cover, so a three-phase circuit needs one cover per fuse, three per disconnect.
3) How do I tell which fuse is blown without pulling the dead-front cover off?
That is the point of the LED version. The DFC-6I has an LED indication system that lights orange when the fuse has opened, so a tech reads the fault from outside the cover instead of removing guarding to meter each fuse. Each cover also comes with a blank label so you can write the circuit or fuse ID on it.
4) Do I have to buy a new DFC cover every time I replace the fuse?
No. The cover detaches from the open fuse and reattaches to the replacement, so it is reusable across fuse changes. For MRO stocking that means you buy covers once per fuse position, not once per fuse.
5) What if the dead-front cover hits existing wiring inside the safety switch?
The ends of the DFC cover are field-trimmable. You can cut them back to clear existing conductors, the switch body, or other tight-panel conditions rather than leaving the fuse unguarded.
6) Should I order the LED-indicating fuse cover or a plain dead-front cover?
Both shield the live clips and terminals equally. The DFC-6I adds the LED open-fuse indicator, which earns its keep in motor control centers, panelboards and anywhere troubleshooting time matters, because you spot the open fuse without opening up guarding. If the assembly is rarely serviced or fuse status is read elsewhere, the indication adds nothing you need.
7) What is the exact part number for the 60A LED version of the Mersen DFC fuse cover?
Order Mersen DFC-6I. That is the 60A, 1-Pole, 600V cover with the LED open-fuse indicator.
8) How many Mersen DFC-6I covers come in a pack?
Packaging is 3 each, which lines up conveniently with a three-pole fusible disconnect needing one 1-Pole cover per fuse.
How fast can I get the Mersen DFC-6I 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 Mersen DFC-6I come with a warranty?
Absolutely. The Mersen DFC-6I 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 Mersen DFC-6I?
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 Mersen DFC-6I from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
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rewards on
every order.
Our team is always ready to help you choose the right product for your project.