Product Description
Toyota OEM fuse, part number TO 00591-51566-81, rated at 60A for electric lift trucks. Bolt-down design with 125VDC maximum voltage, time-delay characteristic and compatible with select Toyota electric models. Supersedes part numbers 00591-51566-71 and 00591-51566-80.
Specifications
Electrical
| Rated Current | 60A continuous |
| Voltage Rating | Up to 125VDC maximum |
| Interrupting Rating | 10,000A at 125VDC |
| Body Material | Fiberglass reinforced thermoset resin |
Material
| Flame Rating | UL94 V-0 |
Part Numbers
| OEM Part Number | 00591-51566-81 |
| Manufacturer Part Number | TO 00591-51566-81 |
| Cross-Reference Part Numbers | Replaces 00591-51566-71; supersedes 00591-51566-80 |
| Equivalent Part Numbers | 00591-51566-71, 00591-51566-80 |
Frequently Asked Questions
Q: What are the specifications of the TO 00591-51566-81 Toyota OEM fuse?
A: The TO 00591-51566-81 is a 60-amp continuous-rated fuse with 125VDC maximum voltage, bolt-down design, and time-delay characteristic. It is manufactured by Toyota for electric lift truck auxiliary and control circuits. This part replaces earlier superseded part numbers 00591-51566-71 and 00591-51566-80.
Q: What is the difference between the TO 00591-51566-81 and the older part numbers 00591-51566-71 or 00591-51566-80?
A: The TO 00591-51566-81 supersedes both 00591-51566-71 and 00591-51566-80. These part numbers represent generation updates or manufacturing refinements to the same 60A fuse assembly. The newer -81 version is the current OEM standard and recommended for all replacements.
Q: Which Toyota lift truck circuits use the 60A TO 00591-51566-81 fuse?
A: The 60A TO 00591-51566-81 typically protects auxiliary power circuits, hydraulic pump motors, or control system circuits in Toyota electric lift trucks. The exact circuit and installation location vary by truck model and serial range. Consult your equipment manual for correct fuse assignment.
Q: Why does the TO 00591-51566-81 have a time-delay characteristic?
A: The time-delay characteristic allows brief current surges during motor startup without nuisance blowing. This protects against transient inrush current while still providing protection against sustained overloads and short circuits. Never substitute with fast-blow fuses of the same amperage.
Q: What should I do if the TO 00591-51566-81 fuse blows repeatedly?
A: Repeated fuse blows indicate an electrical fault, overload, or short circuit in the protected circuit. Do not replace with a higher-amperage fuse. Diagnose the underlying electrical problem by testing continuity and resistance in the circuit. Contact us or consult your equipment manual for troubleshooting procedures.