Product Description
The 250-amp time-delay ceramic stud-mounted fuse provides reliable battery and DC power circuit protection for electric lift trucks. Rated at 125VDC/125VAC with 10,000-amp interrupting capacity, this direct replacement fuse is cross-compatible with Eaton Bussmann, Mersen, and Ferraz industrial fuse standards. Designed for secure mounting in the main power distribution bus of electric pallet jacks and forklifts. Ideal for Drexel, Big Joe, Yale, Hyster, Crown, and other major electric lift truck brands requiring industrial-grade circuit protection.
Specifications
Compatibility
| Compatible Lift Truck Models | Compatible with Drexel, Big Joe, Yale, Hyster, and other major electric lift trucks requiring 250A time-delay fuse |
Electrical Specifications
| Current Rating | 250 amperes (A) |
| Voltage Rating | 125VDC / 125VAC (Bussmann/Mersen); 80VDC (alternate ratings as used) |
| Time Delay Characteristics | 100 seconds at 200% rated current; 35 seconds at 300%; 13 seconds at 500% |
Material & Construction
| Body Material | High-strength ceramic tube |
Mechanical Specifications
| Interrupting Rating | 10,000 A at 125V |
| Operating Orientation | Horizontal or vertical mounting on lift truck power bus |
Part Numbers
| OEM Part Number | ACK-250 (Eaton Bussmann), ACK250 (Mersen/Ferraz) |
| Cross-Reference Part Numbers | Equivalent to Mersen ACK250, Ferraz ACK250, Bussmann ACK-250 |
| Supersedes/Replaces | Replaces Drexel OEM 901342 |
| Interchange Part Numbers | Direct replacement for ACK250, 79134 (Mersen/Anixter), compatible with Drexel, Big Joe, Yale, Hyster electric lift trucks |
Performance
| Typical Use | Battery circuit protection, power distribution main fuse for electric lift trucks |
Frequently Asked Questions
Q: What are the specifications for the DX ACK-250 fuse?
A: The DX ACK-250 is a 250 amp, time-delay ceramic fuse rated at 125 VDC/125 VAC with a 10 kA interrupting capacity. It features stud-mounting design for secure bolt-in installation in electric lift truck battery and DC power circuits.
Q: Which electric lift truck brands use the DX ACK-250?
A: The DX ACK-250 is compatible with major electric lift truck brands including Drexel, Big Joe, Yale, Hyster, Crown, Toyota, Raymond, Jungheinrich, and others. Verify your equipment specifications match the 125 VDC/125 VAC rating before ordering.
Q: What OEM part numbers does the DX ACK-250 cross-reference?
A: The DX ACK-250 cross-references Eaton Bussmann ACK-250, Mersen ACK250, Ferraz ACK250, and replaces Drexel OEM 901342. It is also compatible with Mersen/Anixter part number 79134 and serves as a direct replacement for equipment using standard ACK250 fuses.
Q: Does the DX ACK-250 replace the Drexel OEM 901342 fuse?
A: Yes, the DX ACK-250 is a direct replacement for Drexel OEM 901342. However, verify that your Drexel equipment is rated for 125 VDC/125 VAC before substituting, as some older models may have different voltage specifications.
Q: What is the interrupting capacity and why does it matter?
A: The DX ACK-250 has a 10 kA interrupting capacity, meaning it can safely clear fault currents up to 10,000 amps without rupture or fire risk. This rating is critical for battery circuit protection because lift truck battery systems can generate extremely high short-circuit currents.