Eaton ACK-50 Fuse - Time-delay, Stud-Mount, 130 Vdc
Part Number: ACK-50
Quick Summary
ACK-50 fuse from Eaton provides time-delay DC circuit protection for forklift power systems and battery chargers. This helps maintain uptime by tolerating brief inrush and load surges without nuisance trips. The data lists Not Applicable for warranty and compliances, so verify CE, UL, or IP certifications on the official Eaton datasheet to ensure regulatory alignment in your region. With a compact 3 in body, dual elements, non-indicating fuse indicator, and stud mounting, the ACK-50 installs quickly in tight electrical cabinets and battery rooms. Designed for DC protection in material-handling environments, it supports predictable protection for high-discharge circuits, delivering safer operations and streamlined maintenance planning for fleets.
Product Information
Extended Description
ACK-50 Eaton: Eaton Bussmann series ACK fuse, Time-delay stud-mounted fuse, DC circuits protection for fork lift truck and battery chargers, 50 A, Dual, Non-indicating, 100 sec at 200%, 35 sec 300%, 13 sec at 500%, Stud, Standard, 130 Vdc
Product Name
Eaton Bussmann series ACK fuse
Catalog Number
ACK-50
UPC
051712701327
Product Length/Depth
3 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.15 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
50 A
Response time
100 sec at 200%, 35 sec 300%, 13 sec at 500%
Voltage rating
130 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 Fuseology
Eaton Specification Sheet - ACK-50
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 protection for 50 A at 130 Vdc → Business Impact: Tolerates inrush and surge events, reducing unnecessary shutoffs and extending uptime in DC-powered equipment. Application: Forklift battery chargers and DC motor circuits benefit from fewer nuisance trips, improving productivity and service life. Feature: Dual elements → Business Impact: Enhanced fault tolerance and selectivity, lowering the risk of complete circuit loss during a fault. Application: High-discharge cycles in industrial DC systems perform more reliably in fleets and charging stations. Feature: Stud mounting with 3 in length → Business Impact: Easy installation in confined panels, saving space and enabling faster service turnover. Application: Compact electrical cabinets in warehouses and manufacturing lines benefit from simplified retrofits. Feature: Non-indicating fuse indicator → Business Impact: Reduces panel clutter while requiring external status checks, enabling straightforward maintenance planning. Application: Systems using centralized annunciators or external fault indicators benefit from clean, modular protection. Feature: 50 A, 130 Vdc rating and standard packaging → Business Impact: Fits common forklift and battery-charger power networks with predictable coordination. Application: OEMs and service teams can standardize spares across fleets, lowering inventory costs. Feature: One-time fuse behavior → Business Impact: Guarantees replacement with a known-time fuse after fault, improving fault isolation and safety in high-load DC circuits. Application: Critical DC protection in material-handling environments benefits from definitive post-fault intervention.
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FAQs
The ACK-50 is a stud-mounted, 50 A, 130 Vdc fuse designed for DC protection in forklift systems and battery chargers. Its 3 in length and dual-element construction simplify integration into standard panels and battery compartments, while its standard packaging supports quick spares provisioning and fleet-wide consistency.
ACK-50 provides specific response times: approximately 100 seconds at 200% overload, about 35 seconds at 300%, and around 13 seconds at 500%. This time-delay behavior helps tolerate inrush and surge events, reducing nuisance trips in high-load DC circuits typical of forklift charging and motor drive applications.
ACK-50 is a rugged, stud-mounted fuse intended for DC protection in demanding settings such as warehouses and manufacturing floors. While the data does not list explicit CE/UL/IP certifications, its compact power-handling design supports reliable operation when mounted in service enclosures, provided the installation adheres to your site standards and Eaton’s datasheet guidance.
The provided spec data marks warranty and compliances as Not Applicable. For regulatory compliance, confirm applicable CE, UL, CSA, or IP ratings on Eaton's official ACK-50 datasheet and with your local electrical standards before deployment in a regulated environment.
Using a time-delay, dual-element fuse like the ACK-50 reduces nuisance trips, improving equipment uptime and reducing unplanned maintenance. Its one-time fuse characteristic simplifies fault isolation and replacement procedures, supporting lower total cost of ownership when standardized across fleets with DC charging and forklift circuits.