Eaton HM25400-2CR Modular Fuse Block - UL Listed
Part Number: HM25400-2CR
Quick Summary
HM25400-2CR modular fuse block provides high-capacity protection for industrial distribution panels. Many buyers struggle to find a single device that delivers reliable protection at 225–400 A with proven fault-current performance. UL Listed and CSA Certified with RoHS compliance, the HM25400-2CR handles 225–400 A and 10 kAIC at 250 V, in a practical two-pole configuration with Class K and Class H fault protection. This modular design reduces maintenance and simplifies retrofits, while its 9.6 in length, 7 in width, and 5 in height (about 4.48 lb) enable efficient space planning in crowded panels. Built for rugged environments, it supports quick servicing and straightforward wiring, delivering predictable protection and helping minimize downtime in critical applications.
Product Information
Extended Description
HM25400-2CR Eaton: Eaton Bussmann series HM modular fuse block, CR, 225-400 A, Two-pole, Class K, Class H, 10 kAIC, 250 V
Product Name
Eaton Bussmann series HM modular fuse block
Catalog Number
HM25400-2CR
UPC
051712386920
Product Length/Depth
9.6 in
Product Height
5 in
Product Width
7 in
Product Weight
4.48 lb
Warranty
Not Applicable
Compliances
RoHS Compliant
Certifications
Contact Manufacturer UL Listed CSA Certified
Amperage Rating
225-400A
Short-circuit rating
10 kA
Voltage rating
250 V
Number of Poles
Two-pole
Class
Class K Class H
Special features
CR
HM25400-2CR~FUSE HOLDER
HM25400-2CR~FUSE HOLDER
Bussmann series Fuseology
Bussmann series Fuseology
Eaton Specification Sheet - HM25400-2CR
Feature: The HM25400-2CR provides a broad amperage range of 225–400 A with a 10 kAIC short-circuit rating at 250 V. Business impact: This capacity reduces the need for multiple devices and promotes lower spare-parts inventory while increasing protection reliability. Application: Ideal for industrial distribution panels and motor feeders where high-current protection is essential and panel real estate is at a premium. Feature: Two-pole modular design with Class K and Class H protection, backed by UL Listing and CSA Certification. Business impact: Simplifies wiring schemes, supports compliance audits, and enhances installer confidence during retrofits. Application: Control panels in manufacturing and packaging lines requiring certified safety. Feature: RoHS compliant construction minimizes hazardous substances in both manufacturing and end-use environments. Business impact: Supports corporate sustainability goals and regulatory compliance while reducing waste handling risks. Application: OEM panel assemblies and retrofit projects. Feature: Compact footprint with practical dimensions (9.6 in x 7 in x 5 in) and a pull-in weight of 4.48 lb. Business impact: Enables efficient space planning and easier installation in tight control cabinets, lowering labor time. Application: Enclosed panel installations where space optimization matters. Feature: CR feature and modular compatibility with HM series catalogs. Business impact: Facilitates quick servicing, future expansions, and reduced maintenance downtime. Application: Upgrades and lifecycle management in existing electrical protection infrastructure.
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FAQs
HM25400-2CR is designed as a two-pole modular fuse block compatible with standard industrial panel layouts. Installers should verify a 225–400 A protection range, 250 V rating, and proper mounting clearance for the 9.6 in x 7 in x 5 in form factor. Its Class K/H compatibility supports common motor control and feeder circuits, simplifying wiring schemes and reducing retrofit complexity.
Key ratings include a 225–400 A amperage range, 10 kAIC short-circuit rating, and a 250 V voltage rating. These figures indicate the fuse block can protect high-current circuits from short-circuit events while tolerating normal operational transients at panel bus voltages. Design teams should align these specs with system fault current calculations and protection coordination requirements.
Industries with heavy motor loads and high-current feeders, such as manufacturing, packaging, and process sectors, benefit most. The two-pole, high-amperage protection enables reliable distribution panel protection in motor control centers and large equipment feed lines. Its RoHS compliance also suits facilities pursuing sustainability and regulatory alignment.
The HM25400-2CR is UL Listed and CSA Certified, with RoHS compliance. These certifications support compliance with common electrical safety standards and environmental regulations, aiding in regulatory audits and customer quality requirements for industrial protection devices and panel hardware.
Maintenance benefits include modularity that enables rapid replacement of the fuse holder without disturbing adjacent circuits, reducing downtime. The robust 225–400 A protection range and 10 kAIC rating help prevent nuisance outages, lowering spare-part costs and enabling longer service intervals. Space efficiency and certified reliability contribute to faster retrofits and favorable total cost of ownership over panel lifecycles.