Eaton RES-25 Fuse - Class H, 10 kAIC @ 250 Vac
Part Number: RES-25
Quick Summary
The Eaton RES-25 fuse provides reliable overcurrent protection for 25 A circuits in industrial and commercial electrical systems. This time-lag device helps prevent nuisance trips during motor start-ups and inductive surges, improving panel uptime. With Class H construction and a 10 kAIC interrupt rating at 250 Vac, it delivers predictable fault clearing while protecting downstream equipment. Its 600 V rating adds a safety margin for mixed-voltage installations, and the non-indicating design reduces maintenance checks in sealed panels. Packaged standardly in groups of ten, the RES-25 integrates easily into Bussmann series inventories, supporting faster stocking and procurement. For engineers seeking robust protection without complex coordination, it pairs well with motor controllers and distribution boards in industrial environments.
Product Information
Extended Description
RES-25 Eaton: Eaton Bussmann series RES fuse, time lag, non current-limiting, Industrial and commercial structures, 25 A, Class H, Non-indicating, 10 kAIC at 250 Vac, Standard, 10, 600 V
Product Name
Eaton Bussmann series RES fuse
Catalog Number
RES-25
UPC
051712110259
EAN
5027590182416
Product Length/Depth
0.81 in
Product Height
5 in
Product Width
0.81 in
Product Weight
0.15 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
25 A
Interrupt rating
10 kAIC at 250 Vac
Voltage rating
600 V
Packaging type
Standard
Class
Class H
Fuse indicator
Non-indicating
Quantity
10
Special features
Super lag, time lag, non current-limiting
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - RES-25
Feature: Time-lag, non current-limiting behavior aligns fault clearing with inrush currents, reducing nuisance trips. Business Impact: Keeps equipment running through motor starts and transformer surges, lowering downtime and maintenance costs. Application: Motor control centers, HVAC drives, and lighting circuits in industrial facilities. Feature: Class H construction with a 10 kAIC interrupt rating at 250 Vac. Business Impact: Safe fault clearing and device coordination across feeders, enhancing system reliability during short-circuit events. Application: Distribution panels and service entrances in commercial buildings. Feature: 25 A amperage rating and 600 V voltage rating. Business Impact: Protects typical commercial and light-industrial circuits while maintaining compatibility with standard control devices. Application: Branch circuits in warehouses, factories, and schools. Feature: Non-indicating indicator and standard packaging of ten fuses per pack. Business Impact: Simplifies maintenance, replacement planning, and inventory control, reducing downtime during outages. Application: Stocking for field service and panel refurbishments. Feature: Compatibility with Eaton Bussmann series RES, including time lag and non current-limiting design. Business Impact: Streamlined procurement and consistent performance across panels, increasing lifecycle predictability. Application: Retrofit and new builds in electrical protection and circuit control.
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FAQs
The RES-25 is a Bussmann series class H fuse designed for 25 A circuits and 600 V systems. It features a standard 10-fuse packaging and shares common form factors with Bussmann RES devices, making it easy to integrate into existing panel designs and fuse blocks without specialized adapters.
Key ratings include 25 A amperage, 600 V voltage rating, and a 10 kAIC interrupt rating at 250 Vac. It is a time-lag, non current-limiting fuse with a Class H construction, suitable for protecting distribution panels and motor-related circuits in industrial environments.
Yes, the RES-25’s time-lag behavior allows it to tolerate motor inrush currents without nuisance tripping, supporting reliable operation in motor control centers and HVAC drives. It remains non current-limiting, so coordination with upstream protections should be reviewed during panel design.
Install as a standard Bussmann RES fuse in appropriate fuse blocks or panels rated for 600 V. It ships in standard packaging of ten fuses, with a catalog number RES-25 and UPC/EAN identifiers for easy procurement and inventory management.
The RES-25 delivers reliable overcurrent protection with predictable fault clearing (10 kAIC), reduces nuisance trips during startups, simplifies stocking with standard packaging, and supports efficient maintenance and downtime reduction in industrial and commercial facilities.