Mersen Class J Fuse Block, 600...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4,046.94
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Mersen Class J Fuse Block, 600A 3-Pole, 600VAC/600VDC Phenolic

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Model: 6633J

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

$4,046.94
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Mersen Class J Fuse Block, 600A 3-Pole, 600VAC/600VDC Phenolic

The Mersen Class J Fuse Block is a heavy-duty 3-pole fuse block rated 600A at 600VAC/600VDC, engineered for 200-600A bladed Class J fuses. Built with a phenolic insulating body and high-conductivity tinplated copper fuse clips, this direct screw-mount block delivers verified dielectric strength in excess of 2500V and a 200kA short circuit current rating (SCCR), making it well suited for demanding industrial and commercial power distribution applications.

Key Features

  • Ampere Rating: 600A ampere rating with a 600A max fuse rating, sized for 200-600A bladed Class J fuses.
  • 3-Pole Configuration: 3-pole design supports three-phase circuit protection.
  • Dual AC/DC Rating: UL rated 600V AC and 600V DC (AC/DC) at 50/60 Hz for flexible power system use.
  • Durable Construction: Phenolic body/insulating material with verified dielectric strength in excess of 2500V.
  • High-Conductivity Fuse Clips: Tinplated copper clips designed specifically for 200-600A bladed Class J fuses, with a Clip-In installation method.
  • Direct Screw Mount: Direct screw mounting with a 500 lb-in torque rating for a secure, reliable installation.
  • High SCCR: 200kA short circuit current rating for demanding fault-current applications.

Certifications & Compliance

  • RoHS Compliant

Technical Specifications

  • Torque Rating: 500 lb-in
  • Ampere Rating: 600 A
  • ROHS Compliant: Yes
  • Frequency: 50/60 Hz
  • Rated Voltage AC (UL): 600 V
  • Number of Poles: 3-Pole
  • AC or DC: AC/DC
  • Fuse Type/Class: Class R
  • Short Circuit Current Rating (SCCR): 200 kA
  • Installation Mounting: Direct Screw Mount
  • Max Fuse Rating: 600 A
  • Fuse Installation Method: Clip-in
  • Rated Voltage DC (UL): 600 V
  • Fuse Class: Class J
  • Body/Insulating Material: Phenolic
  • Packaging: 1 EA

Typical Applications

  • Industrial Power Distribution Panels
  • Motor Control Centers
  • Three-Phase Circuit Protection
  • Class J Fuse Protection Systems
  • Commercial and Industrial Electrical Installations

Why Mersen?

Mersen fuse blocks combine a phenolic insulating body with high-conductivity tinplated copper fuse clips to deliver dependable, code-compliant Class J fuse protection. With a 600A rating, 600VAC/600VDC dual voltage rating, and a 200kA SCCR, this RoHS compliant fuse block is built for reliable performance in demanding professional electrical systems.

Manufacturer Resources

Product Specs

list_batch:
MERSEN-20260825
Product Type:
Fuse Block
Product Material:
Phenolic
Amperage Rating:
600A
Voltage Rating:
600VAC/600VDC
Configuration:
3-Pole
Connection Type:
Clip-In
Standards:
RoHS Compliant
Department:
Electrical
Product Group:
Wiring Devices

Mersen 6633J – Frequently Asked Questions

How fast can I get the Mersen 6633J 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 6633J come with a warranty?
Absolutely. The Mersen 6633J 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 6633J?
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 6633J from ZenSupply?
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