Product Description
Yale OEM contactor YL 504908501 (24V) for electric lift trucks. Rated for 24VDC operation and 150A continuous current. Compatible with multiple Yale truck models and features cross-reference part numbers YT504908501 and 504908501. Includes silver alloy contacts and M8 main terminals.
Specifications
Electrical
| Coil Voltage | 24VDC rated |
| Current Carrying Capacity | Rated for 150A continuous at 24VDC |
| Control Voltage | 24VDC nominal control coil |
| Pick-Up Voltage | 19VDC maximum |
| Drop-Out Voltage | 6VDC minimum |
| Maximum Inrush Current | 600A peak at 24VDC (contact rating) |
Part Numbers
| OEM Part Number | YL 504908501 |
| Manufacturer Part Number | 504908501 |
| Cross-Reference Part Numbers | YT504908501, 504908501 |
| Supersedes/Replaces | Supersedes Yale 504908501, YT504908501 |
Frequently Asked Questions
Q: What are the electrical specifications of the YL 504908501 contactor?
A: The YL 504908501 is rated for 24VDC coil voltage with 150A continuous current capacity. It features silver alloy contacts rated for main power switching applications and M8 main terminals. This contactor is designed for continuous duty operation in 24-volt electric lift truck systems.
Q: What cross-reference part numbers are equivalent to YL 504908501?
A: The YL 504908501 is cross-referenced as YT504908501 and 504908501. These three part numbers are interchangeable and identify the same OEM Yale contactor. Verify the exact part marking on your truck to confirm the correct cross-reference.
Q: Which Yale electric lift truck models use the YL 504908501?
A: The YL 504908501 is compatible with multiple Yale electric forklift and lift truck models rated for 24-volt systems. Confirm your truck model and serial range match this specification before ordering. Contact us with your equipment details for exact compatibility verification.
Q: Why do silver alloy contacts matter in the YL 504908501?
A: Silver alloy contacts provide superior electrical conductivity, lower contact resistance, and better arc suppression compared to standard alloys. This reduces heat generation, extends contact life under high-current load switching, and improves reliability in 150A continuous duty applications.
Q: What is the lifespan of the YL 504908501 contactor?
A: Contactor lifespan depends on switching frequency, load profile, and operating environment. In typical continuous duty, a well-maintained YL 504908501 lasts several years. Degraded performance or failure occurs when contacts become pitted, contacts fuse, or coil insulation breaks down. Regular inspection of contact surfaces helps predict replacement timing.
Q: Are the M8 terminals on the YL 504908501 field-replaceable?
A: The M8 main terminals on the YL 504908501 are integral to the contactor assembly. Terminal replacement requires specialized equipment and skill. If terminal corrosion or damage occurs, contactor replacement is the recommended solution rather than terminal service.