A3M1ASP24VDC2R

Relay Automotive Overview

The A3M1ASP24VDC2R is an automotive relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It features a single-pole normally-open (SPST-NO) contact configuration with a maximum rated current of 80A and a switching voltage limit of 75VDC. The coil operates at 24VDC with a resistance of 320 Ohms and consumes 1.8W of power. Key electrical characteristics include a pull-in voltage of 16.8VDC and a release voltage of 2.4VDC. The device utilizes silver tin oxide indium oxide contacts and offers fast operating times of 7ms and release times of 5ms. It is sealed, includes an integrated diode, and supports through-hole mounting.

Relay Automotive Feature Summary

• High current capacity up to 80A for demanding automotive loads
• Integrated protection diode for coil suppression
• Fully sealed construction for environmental durability
• Fast mechanical response with 7ms operation and 5ms release

Relay Automotive Applications

• Automotive lighting circuits
• Heater and fan motor control
• Solenoid actuation systems
• General purpose automotive switching

Relay Automotive Procurement Notes

Verify the specific suffix 'R' against the manufacturer's official documentation to confirm terminal style and packaging variations. Ensure the 24VDC coil voltage aligns with the target system architecture. Confirm that the 80A rating meets the peak load requirements of the intended application without exceeding thermal limits.

Relay Automotive Selection Notes

Select this component when a robust, high-current automotive relay is required. The SPST-NO configuration suits simple on/off control tasks. Consider the 24VDC coil requirement and the need for through-hole installation. The sealed design makes it suitable for harsh environments where moisture or dust resistance is necessary compared to open-frame alternatives.

Relay Automotive Part Context

This part belongs to the A3M series of automotive relays from CIT Relay and Switch. The series is characterized by large switching capacities and reliability in vehicle electrical systems. The A3M1ASP24VDC2R specifically denotes the 24VDC coil variant with through-hole terminals, distinguishing it from panel-mount or different voltage versions within the same family.

Relay Automotive Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with existing socket bases and pin configurations before replacing similar relays.