Eaton BK/ACK-175 Fuse - Time-Delay Dual Element 72VDC
Part Number: BK/ACK-175
Quick Summary
An Eaton BK/ACK-175 fuse provides reliable overcurrent protection for lift-truck battery chargers and DC power circuits. Engineers often face nuisance fuse blows during charger inrush, leading to costly downtime and expedited maintenance. The time-delay, dual-element design tolerates startup surges while maintaining decisive protection. Note that the datasheet lists no applicable certifications; for CE, IP, or SIL requirements, consult Eaton catalogs or your compliance team. This bulk, stud-mounted solution uses copper terminals and silver-plated fuse caps to ensure robust connections in harsh workplace environments, and it aligns with standard Bussmann series protection strategies. For fleets seeking reliability and cost control, BK/ACK-175 supports easy stocking, predictable performance, and safer maintenance planning on heavy equipment and charging stations.
Product Information
Extended Description
BK/ACK-175 Eaton: Eaton Bussmann series ACK fuse, Time-delay stud-mounted fuse, Lift truck and battery charger fuse, 175 A, Dual, Non-indicating, 100 sec at 200%, 35 sec at 300%, 13 sec at 500%, Copper terminal, Bulk, 100, 72 Vdc
Product Name
Eaton Bussmann series ACK fuse
Catalog Number
BK/ACK-175
UPC
051712616621
Product Length/Depth
3.63 in
Product Height
1.063 in
Product Width
1.063 in
Product Weight
0.193 lb
Warranty
Not Applicable
Compliances
Not Applicable
Certifications
Not Applicable
Catalog Notes
Bulk
Amperage Rating
175 A
Response time
100 sec at 200%, 35 sec at 300%, 13 sec at 500%
Voltage rating
72 Vdc
Material
Copper terminal
Number of elements
Dual
Packaging type
Standard Bulk
Fuse indicator
Non-indicating
Mounting method
Stud
Quantity
100
Special features
Silver-plated fuse caps
BK/ACK-175~BK-ACK-175~FUSETRON DUAL ELEMENT
BK/ACK-175~BK-ACK-175~FUSETRON DUAL ELEMENT
Bussmann series Fuseology
Eaton Specification Sheet - BK/ACK-175
Feature: Time-delay, dual-element design. Business Impact: Tolerates charger inrush and startup surges without nuisance tripping, reducing maintenance interruptions. Application: Ideal for lift-truck battery charging circuits and other DC power protections in material-handling fleets. Feature: 175 A amperage at 72 Vdc. Business Impact: Delivers robust protection for high-current charger loads while limiting conductor damage and arcing events. Application: Use in high-current battery charging infrastructure and similar DC protection roles. Feature: Copper terminals with silver-plated fuse caps. Business Impact: Improves connection reliability and corrosion resistance in demanding environments, extending service life. Application: Fleet deployments in warehouses and outdoor facilities where vibration and exposure are common. Feature: Stud mounting with bulk packaging. Business Impact: Simplifies installation and inventory management, enabling faster replacements and lower downtime in service fleets. Application: Standard bulk orders (100 pieces) for OEMs, distributors, and maintenance teams. Feature: Non-indicating, single-unit envelope. Business Impact: Reduced maintenance checks and straightforward integration into existing fuse holders and Bussmann series protection schemes. Application: Compatible with common Bussmann protective hardware in lift-truck charging stations and related DC circuits. Industry context: The BK/ACK-175 aligns with practical maintenance strategies found in material-handling and fleet-management programs, where predictable protection and quick stocking translate into measurable uptime gains and lower total cost of ownership.
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FAQs
The BK/ACK-175 is a stud-mounted fuse with copper terminals and a bulk packaging approach. To install, connect the studs to the charger circuit conductors using the existing Bussmann-style fuse holders, ensuring a tight, clean connection. With 175 A rating at 72 Vdc, verify the conductor sizing and enclosure clearance to prevent overheating and allow for easy field replacement in fleet maintenance programs.
This fuse combines a time-delay design with a dual-element configuration, tolerating startup surges typical of battery charger inrush. The 72 Vdc rating matches common lift-truck charging rails, while copper terminals and silver-plated caps enhance connection durability in industrial environments, helping reduce nuisance trips and extending service life in fleet operations.
Yes. The BK/ACK-175 uses a stud-mount approach common to Bussmann dual-element fuses and is designed to integrate with standard Bussmann series protection hardware. When selecting holders and mounting hardware, confirm stud size and torque specifications to maintain reliable electrical contact and minimize terminal fatigue over time in harsh work environments.
The datasheet for BK/ACK-175 lists Certifications as Not Applicable. If your project requires CE, IP, or SIL compliance, verify with Eaton’s official datasheets or request a formal certification statement from your supplier. Always cross-check with your internal compliance team and applicable industry standards to ensure the part meets your facility’s regulatory requirements.
By tolerating inrush and reducing nuisance trips, BK/ACK-175 minimizes unscheduled downtime for forklift charging systems. The bulk packaging and durable copper terminals ease stocking and field replacement, lowering maintenance labor costs. In fleets where charging reliability directly impacts productivity, this fuse supports longer intervals between repairs and faster fleet readiness.