Product Description
Caterpillar CT 918780 is an OEM hardware contact kit for electric lift truck applications, featuring ASTM B152 copper alloy and SAE Grade 8 steel construction, compatible with select Caterpillar and Mitsubishi models, and includes all required mounting hardware.
Specifications
Material & Construction
| Insulator Material | Thermoset phenolic resin |
| Washer Material | Steel, phosphate and oil finish |
| Bolt Material | Alloy steel to SAE J429 Grade 8 |
| Spring Material | SAE 1070 high carbon steel |
Mechanical Specifications
| Thread Type | Metric coarse |
Part Numbers
| OEM Part Number | CT 918780 |
| Manufacturer Part Number | 918780 |
| Cross-Reference Part Numbers | Replaces Mitsubishi 0918780 |
| Supersedes | Supersedes 918780C1 |
| Equivalent Part Numbers | Equivalent to CT0918780 |
Performance Specifications
| Continuous Duty Cycle | Rated for 80% continuous operation |
| Service Factor | 1.15 |
Frequently Asked Questions
Q: What is a hardware contact kit and what does the CT 918780 contain?
A: The CT 918780 is an OEM hardware contact kit for electrical switch assemblies on Caterpillar electric lift trucks. It includes copper alloy (ASTM B152) contacts, SAE Grade 8 steel hardware, thermoset phenolic insulator material, and steel washers required for proper electrical connection and mechanical mounting.
Q: Which Caterpillar and Mitsubishi lift truck models does the CT 918780 fit?
A: This kit is compatible with select Caterpillar and Mitsubishi electric lift truck models. Cross-reference numbers include Mitsubishi 0918780 (equivalent), CT0918780 (equivalent), and it supersedes the earlier 918780C1 designation. Verify your specific equipment model against the OEM part cross-reference before ordering.
Q: Why use ASTM B152 copper alloy for contacts instead of other materials?
A: ASTM B152 copper alloy provides superior electrical conductivity, corrosion resistance, and contact reliability in switch assemblies. It maintains low electrical resistance during repeated on-off cycles and resists oxidation in indoor warehouse environments, extending switch life and preventing electrical faults.
Q: What does the thermoset phenolic resin insulator do in the CT 918780 kit?
A: The thermoset phenolic resin insulator electrically isolates the copper contacts and mounting hardware from adjacent circuits and chassis components. It resists electrical arcing, heat degradation, and moisture absorption, maintaining safe switch operation under normal electric lift truck service.
Q: Can the CT 918780 contact kit be repaired, or must the entire switch assembly be replaced?
A: The CT 918780 is a replacement kit for contact and hardware service. If contacts become burned, pitted, or loose, replace the kit as designed. Do not attempt to sand or file contacts or reuse damaged insulators, as this compromises electrical safety and equipment reliability.