Eaton JM60400-1MW26 JM Fuse Block - UL Listed & 200 kA
Part Number: JM60400-1MW26
Quick Summary
JM60400-1MW26 is a high-current modular fuse block for industrial protection and motor control. This Eaton Bussmann series device simplifies panel design by consolidating protection in a single, replaceable block. One common pain point is balancing wiring density with reliable short-circuit protection, which this unit handles without compromising serviceability. It carries UL Listed and CSA Certified markings, with RoHS compliance and CE marking to support global machinery approvals. With a 225–400 A rating, a 200 kAIC withstand, and a 600 V maximum, it enables robust protection while minimizing panel footprint and maintenance costs. The design also offers straightforward lineside and loadside terminations, saving wiring time during installation and speeding commissioning for OEMs.
Product Information
Extended Description
JM60400-1MW26 Eaton: Eaton Bussmann series JM modular fuse block, 225-400 A, Single-pole, Class J, Lineside: (2) 350kcmil - 6 AWG Cu/Al, Loadside: (6) 2 - 14 AWG Cu, 2-8 AWG Al, 200 kAIC, 600 V
Product Name
Eaton Bussmann series JM modular fuse block
Catalog Number
JM60400-1MW26
UPC
051712491167
Product Length/Depth
8 in
Product Height
4.92 in
Product Width
3.43 in
Product Weight
2.44 lb
Warranty
Not Applicable
Compliances
RoHS Compliant CE Marked
Certifications
Contact Manufacturer UL Listed CSA Certified
Amperage Rating
225-400A
Short-circuit rating
200 kA
Voltage rating
600 V
Number of Poles
Single-pole
Class
Class J
eaton-product-overview-for-machinery-catalogue-ca08103003zen-en-us.pdf
eaton-product-overview-for-machinery-catalogue-ca08103003zen-en-us.pdf
eaton-product-overview-for-machinery-catalogue-ca08103003zen-en-us.pdf
Bussmann series Fuseology
Eaton Specification Sheet - JM60400-1MW26
Feature: High-current protection with 225-400 A rating and 200 kA short-circuit rating. Business impact: reliable fault protection for high-value motors and drives, reducing unexpected downtime and extending equipment life. Application: motor control centers and heavy machinery feeders where robust protective coordination is required. Feature: Flexible wiring with defined lineside and loadside terminations (lineside: (2) 350 kcmil - 6 AWG Cu/Al; loadside: (6) 2 - 14 AWG Cu, 2-8 AWG Al). Business impact: lowers labor time and minimizes termination errors during panel assembly. Application: control panels requiring compact, tidy wiring with dependable terminations. Feature: Compact, panel-friendly footprint (8 in L x 4.92 in H x 3.43 in W; weight 2.44 lb). Business impact: enables denser panel layouts and easier installation in limited spaces. Application: machine enclosures and process equipment with tight space constraints. Feature: Compliance and certification suite (UL Listed, CSA Certified; RoHS Compliant; CE Marked). Business impact: streamlines compliance for global deployments and reduces the risk of acceptance delays. Application: OEM machinery and installation sites targeting multi-region approvals. Feature: Class J single-pole design with straightforward terminations. Business impact: simplifies sourcing and replacement, minimizes spare part variety, and lowers maintenance overhead. Application: spare-parts planning for large fleets of powered equipment.
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FAQs
The JM60400-1MW26 supports lineside connections for two 350 kcmil through 6 AWG copper or aluminum conductors and loadside connections for six circuits ranging from 2 to 14 AWG copper and 2 to 8 AWG aluminum. This arrangement supports flexible feeder design while maintaining secure, code-compliant terminations in single-pole protection blocks used in motor control and power distribution panels.
Yes, JM60400-1MW26 is UL Listed and CSA Certified, confirming conformance to essential safety standards. It is RoHS compliant and CE marked as part of Eaton’s commitment to global regulatory alignment. These certifications facilitate marketplace approvals, reduce engineering risk, and support compliance-driven purchasing for machinery and panels deployed worldwide.
This fuse block is ideal for motor control centers, power distribution panels, and machinery enclosures in manufacturing and process industries. With a 225-400 A rating, 200 kA short-circuit rating, and 600 V capability, it protects high-energy circuits while enabling compact, modular designs that speed installation in tight spaces and streamline future expansions.
Consider the UL and CSA certifications for safety approvals, RoHS compliance for restricted substances, and CE marking for European machinery compliance. Also verify compatibility with Class J fusing standards and ensure the device’s amperage and voltage ratings align with your equipment’s motor loads, feeders, and panel ratings to maintain protective coordination and regulatory acceptance.
Installation efficiency improves due to clear lineside/loadside terminations, reduced wiring complexity, and a compact footprint that fits tighter panels. ROI benefits come from faster commissioning, lower maintenance costs due to replaceable fuse blocks, and fewer spare parts because of the standardized modular design, all while meeting stringent safety and compliance requirements.