Eaton JM60400-3MW26 Fuse Block - Class J 225-400A - UL Listed
Part Number: JM60400-3MW26
Quick Summary
The Eaton JM60400-3MW26 modular fuse block protects high-current power circuits in industrial machinery. This product delivers reliable overcurrent protection for main feeders in demanding environments, addressing space constraints and wiring complexity that often slow down installation and complicate maintenance. The fuse block carries UL Listed and CSA Certified markings, RoHS compliance, and CE compatibility to support global manufacturing and end-user safety. With a Class J design rated up to 600 V and a short-circuit current of 200 kA, it combines robust protection with straightforward installation. Businesses benefit from reduced downtime, streamlined spare-part inventories, and easier compliance documentation thanks to its standardized footprint and clearly specified ratings.
Product Information
Extended Description
JM60400-3MW26 Eaton: Eaton Bussmann series JM modular fuse block, 225-400 A, Three-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
JM60400-3MW26
UPC
051712491181
Product Length/Depth
8 in
Product Height
4.7 in
Product Width
1.25 in
Product Weight
7.28 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
Three-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 - JM60400-3MW26
Three-pole design and Class J construction deliver robust fault protection for the main power feeders in heavy equipment. This modular fuse block supports a broad amperage range from 225 to 400 A, allowing you to standardize on a single family while meeting diverse load requirements. In practice, the product simplifies both procurement and installation by accommodating (2) 350 kcmil - 6 AWG Cu/Al lineside and (6) 2-14 AWG Cu, 2-8 AWG Al loadside, reducing wiring complexity and spare parts variety. With a 200 kAIC short-circuit rating and a 600 V maximum, it provides dependable protection against catastrophic faults, enabling safer panel design and less downtime. Compliance is reinforced by UL Listed, CSA Certified, RoHS, and CE markings, supporting global deployments and faster certification cycles. Physical footprint and rugged construction—8 in long, 4.7 in high, 1.25 in wide, and weighing 7.28 lb—enable straightforward installation in compact panels. Compatibility with Eaton Bussmann series and standard line/load terminal configurations reduces field rewiring and accelerates retrofit projects, while a clear spec sheet and documented ratings help maintenance teams plan replacements without surprises.
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FAQs
Follow manufacturer guidelines to mount the unit in a suitable enclosure, connect the lineside conductors (two 350 kcmil–6 AWG Cu/Al) and loadside conductors (six 2–14 AWG Cu, 2–8 AWG Al), and verify 600 V rating and 200 kAIC capability. Ensure proper torque values and safety interlocks per the Eaton datasheet.
Amperage rating: 225–400 A; Voltage rating: 600 V; Short-circuit rating: 200 kAIC; Poles: three-pole; Class: J.
Yes. The block is RoHS compliant and CE marked, with UL Listed and CSA Certified certifications to support global safety and regulatory requirements.
Ideal for protecting main feeders in industrial machinery, including motors, pumps, and HVAC systems where reliable protection, compact footprint, and easy installation are valued.
Length as 8 in, height 4.7 in, width 1.25 in, and weight 7.28 lb. These dimensions support compact panel integration and straightforward mounting.