Product Description
Toyota OEM electric lift truck contactor, part number TO 00591-51691-81, for main power circuit applications. OEM-rated, 24VDC coil. Direct fit for Toyota electric trucks and warehouse vehicles.
Specifications
Electrical
| Rated Coil Voltage | 24VDC |
| Typical Application | Primary power disconnect/engagement for drive circuit |
Material & Construction
| Enclosure Material | High-impact thermoplastic coil housing |
| Contact Pressure Spring | Heavy-duty wound steel |
Part Numbers
| OEM Part Number | TO 00591-51691-81 |
| Manufacturer | Toyota Material Handling |
Frequently Asked Questions
Q: What is the coil voltage for the TO 00591-51691-81 contactor?
A: The TO 00591-51691-81 is a Toyota OEM contactor with a 24VDC coil rating, designed for 24-volt electric lift truck systems. Do not attempt to use this contactor in 12VDC systems; the coil will not energize properly and the truck will not function.
Q: What application does the TO 00591-51691-81 contactor serve in the truck electrical system?
A: This contactor functions as the primary power disconnect and engagement switch for the drive circuit. When the operator activates the accelerator pedal, the 24VDC coil energizes and closes contacts to connect the battery to the motor. It also acts as a safety disconnect when the truck is idle or powered off.
Q: What materials are used in the TO 00591-51691-81 contactor housing and contacts?
A: The coil housing is made from high-impact thermoplastic to withstand vibration and warehouse conditions. The contact pressure spring is heavy-duty wound steel, providing consistent contact force. Main contacts are silver-alloy rated for sustained current flow in the primary power circuit.
Q: How do I determine if the TO 00591-51691-81 contactor needs replacement?
A: If the truck does not respond to accelerator input or the motor will not engage, test the coil voltage with a multimeter. If 24VDC reaches the coil but the motor does not start, the contactor contacts are likely welded or stuck open. Replace the entire contactor unit as contacts cannot be restored.
Q: Is the TO 00591-51691-81 contactor compatible with non-Toyota material handling equipment?
A: This contactor is engineered specifically for Toyota electrical architecture and control system integration. While the 24VDC coil rating may match other brands, the connector configuration and mounting specifications are Toyota-specific. Use this contactor only for Toyota forklifts and warehouse vehicles.