Product Description
CAT Caterpillar CTR-24-253 is a 24VDC intermittent-duty electromagnetic contactor rated for 180 amp single pole switching, engineered for electric lift truck applications. Features robust panel mounting, stud-type terminals, and high-conductivity silver alloy contacts for reliable motor control.
Specifications
Electrical
| Coil Voltage | 24VDC nominal |
| Contact Rating | 180 A intermittent duty |
| Operating Mode | Intermittent duty |
| Control Circuit Voltage | 24VDC |
Material & Construction
| Coil Housing Material | Bakelite or thermoset composite per CAT specification |
Part Numbers
| OEM Part Number | CTR-24-253 |
Frequently Asked Questions
Q: What is the difference between continuous duty and intermittent duty on the CTR-24-253?
A: The CTR-24-253 is rated for intermittent duty operation, meaning it is designed for electric lift truck applications with on-and-off motor control cycles rather than continuous run time. It is rated for 180 amps intermittent duty, which means it handles periodic switching loads. Do not operate this contactor in continuous duty applications as coil heat buildup can damage the unit.
Q: What coil voltage and contact rating does the CTR-24-253 have?
A: The CTR-24-253 operates on 24VDC nominal coil voltage with a 180 amp intermittent duty contact rating for single pole switching. This contactor is engineered specifically for electric lift truck motor control circuits.
Q: What material is the CTR-24-253 coil housing made from?
A: The CTR-24-253 coil housing is constructed from bakelite or thermoset composite material per CAT specification. This material provides electrical insulation and heat resistance typical for industrial material handling equipment.
Q: What type of terminals does the CTR-24-253 use for connection?
A: The CTR-24-253 features stud-type terminals for secure connection to electric lift truck control panels. Stud terminals provide reliable connections in vibration-prone material handling environments.
Q: Does the CTR-24-253 use silver alloy contacts?
A: Yes, the CTR-24-253 is equipped with high-conductivity silver alloy contacts. These contacts ensure reliable electrical switching in intermittent duty lift truck motor control applications and resist oxidation.
Q: How does the CTR-24-253 mount to electric lift truck control systems?
A: The CTR-24-253 is designed for robust panel mounting on electric lift truck control circuits. The stud-type terminals and mounting configuration conform to CAT Caterpillar specifications for standard installation.