Eaton JM60400-3CR Modular Fuse Block - Class J
Part Number: JM60400-3CR
Quick Summary
The Eaton JM60400-3CR modular fuse block protects electrical systems in industrial machinery and panel assemblies. It delivers reliable overcurrent protection for 225–400 A circuits in demanding environments, helping minimize downtime from fuse failures and nuisance trips. UL Listed and CSA Certified, it also carries RoHS compliance with CE marking to support global deployment and regulatory requirements. This three-pole Class J block uses knife blade end connections for fast, secure terminations, enabling compact layouts in tight control panels. For procurement and maintenance teams, its standardized Bussmann series footprint simplifies stocking and replacements, while its rugged construction supports extended service life in harsh industrial settings. The CR variant adds compact, space-saving benefits for tight enclosures without sacrificing protection.
Product Information
Extended Description
JM60400-3CR Eaton: Eaton Bussmann series JM modular fuse block, CR, 225-400 A, Three-pole, Class J, 200 kA, Knife blade end x knife blade end, 200 kAIC, 600 V
Product Name
Eaton Bussmann series JM modular fuse block
Catalog Number
JM60400-3CR
UPC
051712387057
Product Length/Depth
8 in
Product Height
1.25 in
Product Width
4.1 in
Product Weight
6.5 lb
Warranty
Not Applicable
Compliances
RoHS Compliant CE Marked
Certifications
Contact Manufacturer UL Listed CSA Certified
Amperage Rating
225-400A
Interrupt rating
200 kAIC
Short-circuit rating
200 kA
Voltage rating
600 V
Number of Poles
Three-pole
Class
Class J
Connection
Knife blade end x knife blade end
Special features
CR
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 - JM60400-3CR
Feature: Three-pole Class J modular design → Business Impact: Provides synchronized protection across all three phases with a compact footprint, reducing wiring complexity and enabling scalable machine protection in control panels. Application: Industrial machinery and panel boards. Long-tail keywords: three-pole fuse block, Class J protection, modular fuse block. Feature: Amperage range 225–400 A with 200 kAIC interrupt rating → Business Impact: High fault clearance energy handling minimizes damage during short circuits, lowering downtime and maintenance costs. Application: Heavy-duty drives and feeders in manufacturing. Long-tail keywords: 225-400 A protection, 200 kAIC interrupt rating, industrial protection. Feature: Knife blade end x knife blade end connections → Business Impact: Fast, reliable field termination reduces assembly time and swap-out effort during maintenance. Application: Panel assemblies and replacement installations. Long-tail keywords: knife blade end connections, easy termination. Feature: Certifications and RoHS/CE compliance → Business Impact: Ensures regulatory compliance for global projects and simplifies procurement across regions. Application: Global manufacturing environments. Long-tail keywords: UL Listed, CSA Certified, RoHS Compliant, CE Marked. Feature: Physical footprint and weight (8 in L × 4.1 in W × 1.25 in H, 6.5 lb) → Business Impact: Compact, stackable design fits tight enclosures while maintaining robust protection and ease of handling. Application: OEM machine builds and retrofit projects. Long-tail keywords: compact fuse block, standard footprint, installation efficiency. Feature: CR feature and Bussmann series compatibility → Business Impact: Streamlines upgrades and accessory compatibility, reducing part mix and inventory costs. Application: Retrofit and upgrades in existing installations. Long-tail keywords: CR feature, Bussmann series compatibility, modular protection.
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FAQs
JM60400-3CR uses knife blade end connections and a three-pole Class J design, aligning with standard Bussmann/JM footprints. It fits in common 600 V panel assemblies and supports straightforward field termination, reducing commissioning time and enabling quick upgrades in retrofit projects.
Key specs include amperage rating of 225–400 A, voltage rating of 600 V, interrupt rating of 200 kAIC, and short-circuit rating of 200 kA. The unit is three-pole with Class J protection, which aligns with typical industrial control schemes and motor feeder protection.
Yes. JM60400-3CR is UL Listed and CSA Certified, RoHS Compliant, and CE marked, supporting global deployment across regulated environments and helping ease cross-border procurement and compliance.
Best for industrial machinery protection, control panels, and machine-building installations requiring reliable 225–400 A protection. Its three-pole configuration and 600 V rating make it ideal for high-current, compact-panel applications with standardized replacement parts.
The modular, standardized design reduces spare parts variety and downtime during fuse replacements. UL/CSA compliance and RoHS/CE eligibility minimize regulatory risk, while high fault current protection improves system reliability, contributing to lower maintenance costs over the equipment’s life.