Mersen USCC2 UltraSafe Class C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$128.27
Mersen USCC2 UltraSafe Class CC Fuse Holder, 30A 2-Pole DIN Rail Mount

Mersen USCC2 UltraSafe Class CC Fuse Holder, 30A 2-Pole DIN Rail Mount

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Model: USCC2

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

$128.27
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Mersen USCC2 UltraSafe Class CC Fuse Holder, 2-Pole DIN Rail Mount

The Mersen USCC2 UltraSafe Class CC Fuse Holder delivers reliable circuit protection for both AC and DC applications, rated 600VAC/600VDC at 30A. This 2-Pole unit uses pressure plate technology with a glass filled polycarbonate body and mounts directly to standard DIN rail for fast, repeatable panel installation. With IP20 finger-safe protection, clip-in fuse installation, and a 200kA SCCR rating, this holder is engineered for demanding industrial control panels, motor control centers, and DC power systems where dependable overcurrent protection is essential.

Key Features

  • Dual Voltage Rating: 600VAC/600VDC capability supports both AC and DC circuit protection applications on a single platform.
  • Class CC Compatibility: Sized and configured specifically for Class CC fuses to ensure proper fit and optimal protection performance.
  • 2-Pole DIN Rail Mounting: Standard DIN rail installation allows quick, secure 2-pole mounting in professional enclosures and control panels.
  • Durable Construction: Glass filled polycarbonate body provides excellent mechanical strength and electrical isolation for long service life.
  • 200 kA SCCR Rating: High short circuit current rating delivers robust fault protection capability for demanding installations.
  • Pressure Plate Design: Ensures reliable electrical contact and secure fuse retention for consistent, long-term performance.
  • IP20 Protection: Finger-safe design prevents accidental contact with live parts while keeping fuses accessible for maintenance.
  • Wiring Range: Accepts Cu #6-14 conductors with a 15 lb-in torque rating for proper, code-compliant termination.

Certifications & Compliance

  • RoHS Compliant

Technical Specifications

  • Rohs Compliant: Yes

Typical Applications

  • Industrial Control Panels
  • Motor Control Centers
  • Power Distribution Systems
  • Commercial Electrical Equipment
  • Process Control Systems
  • Renewable Energy Systems and DC Power Applications

Why Mersen?

Mersen UltraSafe fuse holders combine proven pressure plate contact technology with a durable, RoHS compliant glass filled polycarbonate body engineered for both AC and DC service. The compact 2.32" x 3.07" x 1.38" footprint and lightweight 0.28 lb construction deliver professional-grade Class CC protection with a 200kA SCCR rating in a space-efficient, DIN rail mounted package. For panel builders and maintenance electricians who need dependable, code-compliant overcurrent protection across 600VAC/600VDC systems, this fuse holder provides secure fuse retention and finger-safe operation for reliable long-term service.

Manufacturer Resources

Product Specs

Ac Or Dc:
AC/DC
Rated Voltage Ac Ul:
600 V
Number Of Poles:
2-Pole
Fuse Installation Method:
Clip-in
Product Length:
3.07 in
Product Height:
2.32 in
Wiring Range:
Cu #6-14
Fuse Type Class:
Class CC
Short Circuit Current Rating Sccr:
200 kA
Product Width:
1.38 in
Department:
Electrical
Ampere Rating:
30 A
Rohs Compliant:
Yes
Max Fuse Rating:
30 A
Product Group:
Wiring Devices
Torque Rating:
15 lb-in
Body Insulating Material:
Glass Filled Polycarbonate
Frequency Hz:
50/60 Hz
Rated Voltage Dc Ul:
600 V
Fuse Class:
Class CC
Product Weight:
0.28 lb
Installation Mounting:
DIN Rail
Product Type:
Fuse Holder

Mersen USCC2 – Frequently Asked Questions

1) What fuses does the Mersen USCC2 fuse holder take?
It takes Class CC fuses only, up to 30 A. Class CC bodies use a rejection feature so other 13/32 x 1-1/2 inch fuses will not seat, which is the point of the holder. Fuses clip in rather than screwing or threading in, so swapping one during maintenance is a hand operation with the panel de-energized.
2) Can I use this Class CC holder on a DC circuit, like a solar or battery system?
Yes. The USCC2 UltraSafe holder is rated 600 V on DC as well as 600 V AC, so it works in DC power and renewable energy circuits, not just 50/60 Hz AC panels. Many CC holders are AC-only, so this dual rating is the reason to pick it for a DC bus. The fuse you install has to carry its own DC rating at your system voltage.
3) What is the difference between the Mersen USCC2 and USCC2I?
Indication. USCC2 is the plain 2-pole holder; USCC2I is the same holder with a blown-fuse indicator so an electrician can see which pole opened without pulling fuses. Electrical ratings and mounting are the same either way. If the panel is behind a door that gets opened for troubleshooting, the indicator version saves time; inside a sealed distribution block it buys you nothing.
4) Will the Mersen USCC2 hold up on a panel with a 200kA available fault current?
Yes, it carries a 200 kA short circuit current rating, which covers the high-fault service entrances and motor control centers where CC fusing is typically specified. That SCCR is what lets the holder be counted in a panel's overall short circuit rating rather than becoming the weak link.
5) Can a Littelfuse WPB1 in-line watertight fuse holder be used in place of the Mersen USCC2 in a control panel?
No, they solve different problems. The Mersen USCC2 is a 2-pole Class CC holder that mounts to standard DIN rail inside an enclosure, rated 600VAC/600VDC at 30A with a 200 kA SCCR and IP20 finger-safe construction, and it terminates Cu #6-14 conductors at 15 lb-in. The Littelfuse WPB1 is an in-line watertight holder, built to be spliced into a cable run rather than rail-mounted in a panel and wired to terminals. If the fuse has to sit on a DIN rail beside contactors and terminal blocks, the USCC2 is the correct form factor; if the fuse has to live out on a wet or exposed cable run, an in-line watertight holder is the one to look at.
6) Is the Littelfuse LSRY plug fuse box cover unit an alternative to the Mersen USCC2 fuse holder?
They are not interchangeable. The Littelfuse LSRY is a plug fuse box cover unit rated 125V 15A, intended for screw-in plug fuses in a residential-style load center cover. The Mersen USCC2 accepts Class CC ferrule fuses that clip in, carries a 600V AC and 600V DC UL rating at 30A, and mounts on DIN rail for industrial control panels and motor control centers. A 125V plug-fuse device cannot be substituted into a 600V panel circuit, and the fuse bodies themselves are different types.
7) What wire size and torque does the USCC2 fuse holder terminal accept?
Terminals take copper conductors from #14 up to #6 AWG, torqued to 15 lb-in. Aluminum is not in the listed wiring range, so use copper. Hit the torque value with a screwdriver that reads inch-pounds; a hand-tight CC holder terminal is the usual cause of heat at the block.
8) Is this fuse holder finger safe for a panel technician working live?
The UltraSafe body is IP20 finger-safe, so a technician cannot make accidental contact with live parts at the holder while the fuses stay accessible for changing. The housing is glass filled polycarbonate, which gives the mechanical strength and dielectric isolation the enclosure rating depends on. IP20 is contact protection, not a wet-location rating.
9) I need a fuse holder for outdoor wiring, not a control panel. Is this the right one?
No. The USCC2 is a DIN rail holder for the inside of an enclosure, with IP20 contact protection only. For a wet or exposed run, look at an in-line watertight holder like the Littelfuse WPB1 Series instead. If you are fusing a residential-style plug fuse circuit at 125V, that is a different animal again, the Littelfuse LSRY Series box cover unit.
10) Can I use the USCC2 for a two-pole disconnect on a 480V three-phase motor circuit?
It covers two poles at up to 600 V AC, so it suits single-phase or two-wire branch protection and control transformer primaries at 480V. A three-phase motor branch needs three poles, so the 2-pole unit will not do the whole circuit on its own. Match the fuse ampere rating to the load; the holder tops out at 30 A.
11) What should I choose instead of the Mersen USCC2 if the fuse holder will be mounted outdoors or in a wash-down area?
The Mersen USCC2 is IP20 finger-safe, which guards against accidental contact with live parts but is not a sealed rating, so it belongs inside a protective enclosure. For a fuse point exposed to weather or wash-down, a watertight in-line holder such as the Littelfuse WPB1 series is the style built for that duty. Keep in mind the USCC2 is specifically a Class CC holder rated to 600VAC/600VDC at 30A with a 200 kA SCCR, so confirm the fuse class and circuit rating carry over before switching form factors.
12) Is the Mersen USCC2 RoHS compliant for an export panel build?
Yes, the USCC2 is RoHS compliant, which is usually what an OEM panel shop needs on the bill of material for equipment shipping into RoHS markets.
How fast can I get the Mersen USCC2 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 USCC2 come with a warranty?
Absolutely. The Mersen USCC2 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 USCC2?
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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