Contact Set SB350 2/0 for Toyota Electric Lift Truck
00591-51300-81
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Compatibility
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Product Description
CONTACT SET (SB350 2/0)
Specifications
Part Numbers & Compatibility
| Make | Toyota |
| Part Number | 00591-51300-81 |
| Application | Electric Lift Truck Control Circuits, SB350 Chargers, Operator Panels |
Electrical Specifications
| Voltage Rating | 24V / 36V DC |
Additional Specifications
| Product Type | Electrical Contact Set |
| Configuration | SB350 2/0 |
| Contact Material | Silver-Alloy or Copper-Nickel |
| Typical Service Life | 10,000 to 50,000 switching cycles or 2-3 years |
| Wear Indicators | Contact pitting, oxidation, discoloration, increased resistance |
Frequently Asked Questions
Q: What is the 00591-51300-81 contact set used for?
A: The 00591-51300-81 is a contact set designed for electric lift truck control circuits. It replaces worn or damaged electrical contacts in the charger or operator control panel.
Q: Which electric lift truck brands does this contact set fit?
A: The 00591-51300-81 fits electric lift trucks from Toyota and other major manufacturers operating 24v or 36v systems. Confirm your equipment model matches the sb350 2/0 spec before purchase.
Q: What causes electrical contacts to wear out and need replacement?
A: Electrical contacts wear due to normal switching cycles, thermal cycling, moisture exposure, and arcing under load. After 10000 to 50000 cycles or 2 to 3 years of service, contact surfaces oxidize or pit, causing increased resistance, intermittent operation, or complete circuit failure.
Q: What symptoms indicate that the 00591-51300-81 contact set is failing?
A: Replace the contact set if the truck exhibits intermittent lift operation, slow response to control inputs, complete loss of a function (lift, lower, or directional control), or visible pitting and discoloration on the contact surfaces themselves.
Q: Is the 00591-51300-81 different from the 00591-51301-81?
A: Both the 00591-51300-81 and 00591-51301-81 are contact sets with identical specifications and fit the same control circuits. Part numbers may be cross-references or sequential stock numbers for the same component.
Q: What material are these contacts made from and does material matter?
A: These contacts use silver-alloy or copper-nickel compositions selected for low electrical resistance and resistance to arcing. Using only equivalent contacts ensures proper circuit performance and prevents control malfunctions.
Q: How do I know if I need to replace the contact set?
A: Replace the contact set if you notice intermittent operation, slow response to control inputs, or visible pitting and discoloration on the contact surfaces. Electrical testing with a multimeter showing high resistance or continuity loss confirms contact failure.