Product Description
Yale 505175505 electric forklift contactor with 12VDC coil voltage. DC magnetic contactor with silver contacts for high-current switching in battery-powered material handling equipment. Cross-references ALSW8-12 and SK-0615021012J. Designed for main circuit power control with overload protection in Yale electric lift trucks.
Specifications
Electrical
| Coil Voltage | 12VDC |
| Application | Main circuit power switching and motor control |
Part Numbers
| OEM Part Number | 505175505 |
| Manufacturer Part Number | YT505175505 |
| Cross-Reference Part Numbers | ALSW8-12, SK-0615021012J |
Performance
| Control Method | Low-voltage signal activation for high-voltage circuit control |
Frequently Asked Questions
Q: What are the key electrical specifications of the Yale 505175505 contactor?
A: The Yale 505175505 is a 12VDC magnetic contactor with silver contacts designed for main circuit power control in Yale electric lift trucks. The DC magnetic design uses low-voltage signal activation to control high-voltage circuit switching for motor control and power distribution.
Q: Which Yale electric forklift models is the 505175505 compatible with?
A: The 505175505 is a factory Yale part for battery-powered electric lift trucks with 12VDC main circuit voltage. Verify your equipment serial number and model in the Yale parts catalog or manual to confirm compatibility before ordering.
Q: What are the cross-reference part numbers for the 505175505?
A: The Yale 505175505 cross-references to ALSW8-12 and SK-0615021012J. Use these cross-references to identify compatible replacement parts from other suppliers if the OEM is unavailable.
Q: Why does the 505175505 use silver contacts for material handling equipment?
A: Silver contacts provide excellent electrical conductivity and resistance to oxidation, which is critical in high-current switching applications common to electric lift trucks. Silver contacts maintain low contact resistance over thousands of duty cycles, extending contactor life and improving control reliability.
Q: What function does the 505175505 serve in Yale electric lift truck circuits?
A: The 505175505 functions as the main circuit power switch controlled by low-voltage operator signals. It handles high-current motor switching and power distribution while protecting the circuit with overload protection designed into Yale lift truck control systems.
Q: How can I diagnose a failed 505175505 contactor?
A: Failure symptoms include loss of drive motor power, intermittent equipment operation, or visible contact pitting and burning on the contactor terminals. If the contactor does not energize when operator signals are applied, or fails to de-energize when signals stop, replacement is needed. Verify the OEM part number before ordering.