A3M1UCQ24VDC1

Relay Automotive Overview

The A3M1UCQ24VDC1 is an automotive electromechanical switch manufactured by CIT Relay and Switch. It features a SPST-NO contact arrangement with a standard current rating of 60A at 14VDC and a heavy-duty rating of 80A at 14VDC. The coil operates at 24VDC with a maximum switching voltage of 75VDC and a maximum switching power of 1120W. The unit measures 28.5 x 28.5 x 26.5 mm, utilizes AgSnO2/In2O3 contact material, and offers initial contact resistance below 30 milliohms.

Relay Automotive Feature Summary

• Supports large switching capacity up to 80A for high-current applications
• Available in PCB pin and quick connect mounting configurations
• Complies with QS-9000 and ISO-9002 certified manufacturing standards

Relay Automotive Applications

• Automotive electrical systems
• Lamp accessories control
• High-current circuit switching

Relay Automotive Procurement Notes

Verify the specific contact arrangement suffix (e.g., 1A for SPST N.O.) against the required circuit design. Confirm that the 24VDC coil voltage matches the system supply. Ensure the mechanical mounting style (PCB pin or quick connect) aligns with the assembly process. Check RoHS compliance requirements if applicable to the end product regulations.

Relay Automotive Selection Notes

Select this component when a robust solution for high-amperage switching is required in automotive environments. The 24VDC coil specification dictates the control circuit design. Consider the physical dimensions and mounting options during the layout phase. Verify that the 75VDC max switching voltage is sufficient for the load being controlled.

Relay Automotive Part Context

This part belongs to the CIT A3 series of automotive switches, designed for durability in vehicle applications. The series is characterized by high current handling capabilities and standardized mounting interfaces. It is distinct from lower-capacity relay models like the A2 series and tactile switches such as the CS1102V series.

Relay Automotive Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.