Product Description
CTR-24-203 is a single pole, single throw (SPST), 24VDC continuous duty contactor rated at 180A, designed for electric lift truck main power control. It is recognized in the industry primarily under Universal Products CTR-24-203 and is attributed to CAT Caterpillar electric lift truck applications. Fitted with silver alloy contacts and intended for panel mounting. Cross-reference part numbers are unavailable from primary manufacturer and industrial channels.
Specifications
Electrical
| Coil Voltage | 24VDC nominal |
| Contact Rating | 180A at 24VDC |
Part Numbers
| SKU | CTR-24-203 |
| Identified Industry Reference Part Number | CTR-24-203 |
| Equivalent Part Numbers | Universal Products CTR-24-203, Motofork CTR-24-203 |
| OEM Part Number | Not explicitly listed; CTR-24-203 used as both SKU and part number |
Performance Specifications
| Rated Voltage | 24VDC control circuit |
Frequently Asked Questions
Q: What are the specifications of the CTR-24-203?
A: The CTR-24-203 is a single-pole single-throw (SPST) contactor rated for 24VDC nominal coil voltage with a 180-ampere continuous-duty power contact rating. It features silver-alloy contacts and is designed for panel mounting in electric lift truck main power control circuits. Operating temperature and contact material ensure reliable switching in industrial material-handling duty.
Q: Which lift truck platforms use the CTR-24-203?
A: The CTR-24-203 is recognized as compatible with CAT Caterpillar electric lift trucks and carries cross-reference designations through Universal Products and Motofork. It is primarily a 24VDC main power contactor for equipment requiring 180A continuous switching capability. Verify your truck model and year with your schematic to confirm this is the correct replacement part.
Q: What does single-pole single-throw (SPST) configuration mean?
A: Single-pole single-throw means the contactor has one set of power contacts that open and close together. When the coil is energized, the contacts close and connect power to the main circuit. When the coil is de-energized, the contacts open and break the circuit. SPST is the simplest configuration and is typical for main power switching in lift trucks.
Q: How do I verify that the CTR-24-203 is the correct replacement?
A: Locate your lift truck schematic or the original contactor part number. Confirm that the original part is rated for 24VDC, 180A, and SPST configuration. The CTR-24-203 SKU matches these specifications. If you have your truck model, year, and original part number, provide those details to our parts team for final verification before ordering.
Q: What is the expected lifespan of the CTR-24-203?
A: The lifespan depends on operating frequency, electrical load, and maintenance. Contactors with 180A continuous ratings and silver-alloy contacts typically withstand 100,000 to 500,000 switching cycles before contact wear becomes significant. Replace the contactor if it fails to pull in reliably, if contacts show severe pitting or arcing, or if coil resistance exceeds specification limits.
Q: Are there equivalent part numbers for the CTR-24-203?
A: The CTR-24-203 is referenced across multiple industrial channels and may carry equivalent designations through Universal Products and Motofork under the same part number. Cross-reference part numbers from the original manufacturer are not readily available through primary channels. Use the CTR-24-203 SKU when ordering from our inventory.