Product Description
Caterpillar CT 3D4529 is a 14A OEM fuse for electric lift trucks and heavy equipment, cross-referencing to 2C3128 and compatible with models 3306, 120B, 140B, 12F, and 769B. Specifications include 14 amps, 32VDC rating, copper alloy element, and thermoplastic housing.
Specifications
Electrical
| Current Rating | 14 amps |
| Voltage Rating | 32VDC |
| Interrupting Rating | 1000A at 32VDC |
Material & Construction
| Housing Material | Thermoplastic |
Part Numbers
| OEM Part Number | 3D4529 |
| Cross-Reference Part Numbers | Replaces 2C3128 |
| Interchange Part Numbers | Equivalent to 3D-4529 |
| Compatible Models | Caterpillar 3306, 120B, 140B, 12F, 769B |
Frequently Asked Questions
Q: What are the specifications of the CT 3D4529 OEM fuse?
A: The CT 3D4529 is a 14-amp fuse rated for 32VDC operation. It features a copper alloy element housed in thermoplastic casing with a 1000-amp interrupting rating at 32VDC. These specifications make it suitable for electrical circuit protection in Caterpillar electric lift trucks and heavy equipment applications where reliable overcurrent protection is critical.
Q: Which Caterpillar models use the CT 3D4529 fuse?
A: The CT 3D4529 is compatible with Caterpillar models 3306, 120B, 140B, 12F, and 769B. Verify your equipment model number and electrical system voltage (32VDC) before ordering. Installing a fuse with incorrect amperage or voltage rating can result in circuit protection failure or equipment damage.
Q: What are the cross-reference part numbers for the CT 3D4529?
A: The CT 3D4529 is the OEM Caterpillar designation. It cross-references to and directly replaces Caterpillar part number 2C3128. The equivalent interchange designation is 3D-4529. Always confirm the exact cross-reference before substituting, as incorrect fuse specifications can compromise electrical safety.
Q: What is the difference between a 14A fuse at 32VDC and other fuse ratings?
A: The 14-amp rating means the fuse interrupts current flow when circuit amperage exceeds 14 amps, protecting against overload and short circuits. The 32VDC rating is critical for electric lift trucks with 32-volt DC electrical systems. Using a fuse rated for different amperage or voltage can fail to protect the circuit or cause premature nuisance failures. Always match amperage, voltage, and interrupting rating to the circuit requirement.