Eaton ACK-250 Fuse - 80 Vdc Time-delay stud-mounted
Part Number: ACK-250
Quick Summary
ACK-250 fuse provides time-delay DC protection for forklift power systems and battery chargers. Engineers often battle nuisance trips and downtime when inrush currents strike high-current DC circuits. Note: Certifications are not listed here; typical forklift DC protection deployments consider CE/UL compliance and enclosure IP ratings. With a 250 A rating and 80 Vdc, it protects heavy DC loads while helping to minimize downtime and maintenance costs. Designed for industrial environments, it supports uptime, simplifies sourcing with Bussmann series data, and aligns with fleet safety goals. Its time-delay characteristic helps tolerate normal inrush during startup, reducing nuisance tripping and improving system reliability.
Product Information
Extended Description
ACK-250 Eaton: Eaton Bussmann series ACK fuse, Time-delay stud-mounted fuse, DC circuits protection for fork lift truck and battery chargers, 250 A, Dual, Non-indicating, 100 sec at 200%, 35 sec 300%, 13 sec at 500%, Stud, Standard, 80 Vdc
Product Name
Eaton Bussmann series ACK fuse
Catalog Number
ACK-250
UPC
051712701464
Product Length/Depth
3.87 in
Product Height
1.063 in
Product Width
1.063 in
Product Weight
0.288 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
250 A
Response time
100 sec at 200%, 35 sec 300%, 13 sec at 500%
Voltage rating
80 Vdc
Number of elements
Dual
Packaging type
Standard
Fuse indicator
Non-indicating
Mounting method
Stud
Special features
One time fuse
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - ACK-250
Bussmann series ACK stud-mount fuse data sheet no. 1040
Bussmann series ACK stud-mount fuse data sheet no. 1040
Datasheet - FNQ-30
Feature: Time-delay response provides tolerance to startup inrush and load surges, reducing nuisance trips. Business impact: Improves system uptime and reduces unplanned maintenance in DC forklift power circuits. Application: Ideal for forklift traction power and battery charger protection. In practice, you gain smoother startup sequences and clearer fault discrimination in busy warehouse floors. Long-tail keywords: time-delay fuse, DC protection for forklifts, inrush tolerance, high-current DC protection, Bussmann ACK data.
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FAQs
ACK-250 uses a stud mounting method designed for DC circuits in industrial equipment. Its dimensions are compatible with standard stud-based fuse holders and Bussmann ACK series assemblies, while the device weight is 0.288 lb and packaging is Standard. This ensures straightforward installation in forklift power systems and battery chargers without requiring custom adapters.
The ACK-250 is rated for 250 A and 80 Vdc, with time-delay performance. The trip profile is 100 seconds at 200% overload, 35 seconds at 300%, and 13 seconds at 500%. These ratings protect high-current DC circuits in forklifts and battery chargers while tolerating inrush, improving uptime and preventing nuisance shutdowns.
Yes. The ACK-250 is specifically suited for DC protection in forklift battery charging circuits and related power systems. Its dual-element, time-delay design accommodates startup transients and high current draw typical of charging cycles, while the stud mounting simplifies integration with standard dock and vehicle power assemblies.
The provided data entry does not list specific certifications or compliance marks for the ACK-250. For regulated equipment implementations, verify CE/UL applicability and enclosure IP ratings through your system integrator or refer to the Eaton datasheets and local regulatory requirements. Always cross-check with your safety program before deployment in a certified environment.
ACK-250’s one-time fuse design reduces ongoing maintenance compared to resettable devices, lowering maintenance intervals and inventory. Its 250 A/80 Vdc rating protects critical forklift power and charging circuits from overcurrent events, reducing unplanned downtime. The time-delay feature also minimizes nuisance trips, contributing to improved fleet availability and lower total cost of ownership.