Product Description
Komatsu KO 3WB-470A1530 is an OEM EV100 contactor for electric lift trucks. Electrical specifications include 150A rated current and 24VDC coil voltage, with silver alloy contacts and glass-reinforced thermoset frame. Panel mount configuration with copper stud terminals, suitable for continuous duty in Komatsu electric lift truck applications.
Specifications
Electrical
| Contactor Rated Current | 150A (nominal) |
| Coil Voltage | 24VDC |
| Contactor Type | EV100 series |
| Control Voltage | 24VDC (nominal operating range: 18VDC to 32VDC) |
Material
| Frame Material | Glass-reinforced thermoset plastic |
Part Numbers
| OEM Part Number | KO 3WB-470A1530 |
| Manufacturer Part Number | 3WB-470A1530 |
Performance
| Duty Cycle | Continuous, 100 cycles/hour |
Frequently Asked Questions
Q: What are the electrical and material specifications of the KO 3WB-470A1530?
A: The KO 3WB-470A1530 is an EV100 series contactor rated for 150A continuous at 24VDC coil voltage. It features silver alloy contacts and a glass-reinforced thermoset plastic frame rated for 18VDC to 32VDC operating range, suitable for continuous duty.
Q: What is the control voltage range for the KO 3WB-470A1530?
A: The nominal control voltage is 24VDC with an operating range of 18VDC to 32VDC. This range accommodates voltage fluctuations common in battery-powered electric lift truck systems.
Q: What contact material does the KO 3WB-470A1530 use and why?
A: This contactor uses silver alloy contacts, which provide superior arc resistance and durability compared to copper. Silver alloy contacts maintain lower contact resistance over extended duty cycles, reducing heat and extending service life in heavy-duty applications.
Q: How is the KO 3WB-470A1530 mounted and what are the terminals?
A: The KO 3WB-470A1530 is panel mount configuration with copper stud terminals. Copper studs provide corrosion resistance and reliable electrical connection for continuous duty in material handling equipment.
Q: Is the KO 3WB-470A1530 compatible with Crown, Toyota, Raymond, or other lift truck brands?
A: The KO 3WB-470A1530 is an OEM Komatsu component. While the EV100 series is a standard format used across multiple manufacturers, confirm your equipment model number, serial range, and coil voltage before ordering to ensure proper fitment.
Q: What is the duty cycle rating for this contactor?
A: The KO 3WB-470A1530 is rated for continuous duty operation, meaning it can handle continuous switching cycles in daily electric lift truck applications without thermal shutdown.