Eaton HM25400-1CR HM Modular Fuse Block - 10 kAIC
Part Number: HM25400-1CR
Quick Summary
The Eaton HM25400-1CR is a modular fuse block designed to protect high-current power distribution circuits in industrial panels. When sourcing protection for 225 to 400 A feeders, engineers often face compatibility gaps, lead-time concerns, and compliance risk. This unit carries UL Listed and CSA Certified markings and RoHS compliance, with Class H and Class K characteristics for versatile protection. With compact dimensions and a 250 V rating, it integrates into Bussmann series protection schemes while delivering reliable service, easier replacement, and lower total cost of ownership.
Product Information
Extended Description
HM25400-1CR Eaton: Eaton Bussmann series HM modular fuse block, CR, 225-400 A, Single-pole, Class H, Class K, 10 kAIC, 250 V
Product Name
Eaton Bussmann series HM modular fuse block
Catalog Number
HM25400-1CR
UPC
051712386913
Product Length/Depth
9.5 in
Product Height
4.7 in
Product Width
3.61 in
Product Weight
2.24 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
Single-pole
Class
Class K Class H
Special features
CR
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Class H(K), J and R Power distribution fuse block overview
Class H(K), J and R Power distribution fuse block overview
Eaton Specification Sheet - HM25400-1CR
The HM25400-1CR’s modular design enables rapid customization of protection blocks for high-current feeders, reducing wiring complexity and installation time. This translates to measurable business value: lower panel build costs and faster changeouts during maintenance windows. The device supports 225–400 A circuits with a 10 kAIC short-circuit rating, delivering robust protection for motors, drives, and distribution panels while meeting stringent code requirements and RoHS standards. By combining UL Listed and CSA Certified markings with RoHS compliance, it minimizes regulatory risk and simplifies procurement across multinational sites. The CR feature (Class R/H) adds flexibility for selective coordination and easier integration into existing protection schemes. Compatibility with the Bussmann HM family ensures streamlined stocking, spare-part availability, and consistent performance across legacy and new equipment. Installation benefits include a compact footprint and a single-pole configuration that fits tight panel spaces, boosting overall system reliability and uptime. Industry-specific insight shows that standardized protection blocks reduce downtime and support predictable maintenance cycles in manufacturing environments.
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FAQs
Yes. The HM25400-1CR is part of the Eaton Bussmann HM modular family and is designed for seamless integration with existing HM protection schemes. Its single-pole configuration and CR feature support straightforward replacement and coordination with nearby protection devices, minimizing rework in standard control panels and ensuring consistent performance across legacy and new equipment.
The HM25400-1CR is rated for 225–400 A, operates at 250 V, and provides a 10 kAIC short-circuit rating. This combination supports high-current feeders and robust fault protection for industrial power distribution, while maintaining compatibility with standard 250 V systems and providing strong protection margins for motors and drives.
Absolutely. The HM25400-1CR is designed for high-current power distribution in industrial panels, supporting up to 400 A per block with a 10 kAIC short-circuit rating. Its RoHS compliance and UL Listed/CSA Certified status ensure it meets safety and regulatory requirements for manufacturing environments, making it suitable for motor control centers, feeders, and distributed power panels.
The HM25400-1CR carries UL Listed and CSA Certified markings and RoHS compliance. These certifications help ensure regulatory alignment for global deployments and simplify supplier qualification, audits, and cross-border procurement.
Using the HM25400-1CR can reduce maintenance downtime through quick replacement due to a modular, single-pole design and standardized parts. Its high-current rating supports longer intervals between replacements, while regulatory compliance minimizes inspection overhead. Overall, this translates to lower lifecycle costs, improved uptime, and more predictable maintenance budgeting for industrial facilities.