Product Description
CTR-12-100 is a 12VDC intermittent-duty single pole contactor rated for 180A continuous load, designed for electric lift truck DC traction and control circuits; features screw stud terminals, silver-plated copper alloy contacts, molded phenolic base, and panel-mounting brackets. No cross-reference part numbers available.
Specifications
Electrical
| Main Coil Voltage | 12VDC |
| Continuous Current Rating | 180A |
Part Numbers
| Manufacturer Part Number | CTR-12-100 |
| OEM Part Number | CTR-12-100 |
Performance
| Maximum Cycles per Hour | 300 cycles/hour |
| Typical Control Voltage Range | 9.6VDC to 14.4VDC |
Frequently Asked Questions
Q: What are the key specifications of the CTR-12-100 contactor?
A: The CTR-12-100 is a 12VDC intermittent-duty single pole contactor rated for 180A continuous load. It features screw stud terminals, silver-plated copper alloy contacts, and operates reliably within a 9.6VDC to 14.4VDC control voltage range. Maximum cycle rating is 300 cycles per hour.
Q: What types of electric lift trucks use the CTR-12-100?
A: This 12-volt contactor is designed for electric lift truck DC traction and control circuits from manufacturers including Crown, Toyota, Raymond, Yale, and Hyster. It is suitable for trucks requiring a 180-amp rated contactor in 12VDC systems.
Q: What does intermittent-duty rating mean for this contactor?
A: Intermittent-duty means the contactor is designed for frequent on-off switching cycles typical of lift truck operations, not continuous energization. The 300 cycles per hour maximum rating indicates safe switching frequency. Exceeding cycle limits can overheat and degrade the silver-plated contacts.
Q: What are silver-plated contacts and why are they used?
A: Silver plating provides superior electrical conductivity and corrosion resistance compared to base metals. Silver-plated copper alloy contacts deliver consistent low-resistance connections, reduce heat generation, and extend contact life under high-amperage switching in lift truck applications.
Q: How do I know if the CTR-12-100 needs replacement?
A: Replace the contactor if the lift truck has slow engagement, weak acceleration, intermittent power loss, or visible pitting and burn marks on contact surfaces. A clicking or buzzing sound during operation may indicate contact degradation. Testing voltage at the coil with a multimeter can confirm control signal delivery.