Mersen UltraSafe Class J Fuse ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$133.04

Mersen UltraSafe Class J Fuse Holder, DIN Rail Mount, LED Indicator

(No reviews yet) Write a Review

Model: US3J1I

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

$133.04
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

Mersen US3J3I UltraSafe Class J Fuse Holder, 3-Pole, 600VAC/600VDC 30A, IP65

The Mersen US3J3I UltraSafe Class J Fuse Holder delivers reliable circuit protection for demanding industrial and commercial applications. This 3-pole unit is rated 600VAC/600VDC at 30A for Class J fuses, with integrated LED indication for visual fuse-status monitoring and an IP65-rated polyamide housing for durability in harsh environments. Backed by a 200 kA short circuit current rating and DIN rail mounting, it combines safety, performance, and easy maintenance in one compact package.

Key Features

  • Dual Voltage Rating: 600VAC/600VDC compatibility supports both AC and DC systems for broad application flexibility.
  • 30A Class J Fuse Capacity: Handles substantial current loads with precise overcurrent protection using Class J, clip-in fuses.
  • LED Indication System: Provides instant visual confirmation of fuse status, reducing troubleshooting time.
  • IP65 Environmental Protection: Sealed polyamide construction resists dust ingress and water jets for reliable outdoor and industrial use.
  • 200 kA Short Circuit Current Rating: Exceptional fault current handling ensures system protection under extreme conditions.
  • DIN Rail Mounting: Standard industrial mounting enables quick installation and easy panel integration.
  • Durable Construction: High-performance polyamide insulating material provides excellent electrical isolation and mechanical durability.
  • Wiring Range: Accepts #2 to 14 AWG conductors, torqued to 35 lb-in for a secure termination.

Certifications & Compliance

  • RoHS Compliant
  • IP65 Rated Enclosure

Technical Specifications

  • Indication System: Yes
  • Indication System Type: LED
  • Rohs Compliant: Yes
  • Fuse Class: Class J
  • Number Of Poles: 3-Pole
  • Ampere Rating: 30 A
  • Rated Voltage AC/DC: 600 V
  • Body Insulating Material: Polyamide
  • Installation Mounting: DIN Rail
  • Fuse Installation Method: Clip-in
  • Short Circuit Current Rating (SCCR): 200 kA
  • Wiring Range: #2 to 14 AWG
  • Torque Rating: 35 lb-in
  • Product Dimensions: 4.49 in L x 3.84 in W x 3.15 in H
  • Product Weight: 1.43 lb

Typical Applications

  • Industrial Control Panels and Motor Control Centers
  • Commercial HVAC and Building Automation Systems
  • Manufacturing Equipment and Process Control
  • Power Distribution and Electrical Substations
  • Renewable Energy and Solar Power Systems
  • Marine and Offshore Electrical Installations

Why Mersen?

Mersen UltraSafe fuse holders are engineered for dependable circuit protection, backed by RoHS compliance and a rugged IP65 polyamide housing built for long-term performance. The combination of dual 600VAC/600VDC voltage capability, LED fuse-status indication, and a 200 kA short circuit current rating makes this Class J fuse holder a dependable, code-compliant choice for professional electrical installations.

Manufacturer Resources

Product Specs

Product Group:
Wiring Devices
Installation Mounting:
DIN Rail
Indication System Type:
LED
Indication System:
Yes
Fuse Class:
Class J
Fuse Installation Method:
Clip-in
Department:
Electrical
Product Type:
Fuse Holder

Mersen US3J1I – Frequently Asked Questions

How fast can I get the Mersen US3J1I 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 US3J1I come with a warranty?
Absolutely. The Mersen US3J1I 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 US3J1I?
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 US3J1I from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.