A3M1CSQ24VDC2

Relay Automotive Overview

The A3M1CSQ24VDC2 is a sealed automotive relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It features an SPDT (Single Pole Double Throw) contact arrangement with a heavy-duty rating of 80A at 14VDC. The unit operates on a 24VDC coil voltage with a rated power consumption of 1.8W and a coil resistance of 320 Ohms. Key electrical parameters include a maximum switching voltage of 75VDC, a maximum switching power of 1120W, and an initial contact resistance of less than 30 milliohms. The device utilizes AgSnO2/In2O3 contact materials and offers quick connect terminal styles for chassis mounting.

Relay Automotive Feature Summary

• Sealed construction ensures environmental protection for automotive use
• High current capacity supports heavy-duty switching loads up to 80A
• SPDT configuration provides versatile circuit control options
• Quick connect terminals facilitate rapid installation and maintenance

Relay Automotive Applications

• Automotive lighting systems
• Heavy-duty accessory circuits
• Industrial control panels
• Lamp accessories

Relay Automotive Procurement Notes

Verify the specific ordering suffix against the manufacturer's official catalog to confirm terminal style and internal component variations. Ensure the selected variant matches the required coil voltage and contact arrangement for the target application. Cross-reference the datasheet revision date to confirm compliance with current RoHS standards and manufacturing certifications.

Relay Automotive Selection Notes

Select this model for applications requiring robust sealing and high current handling in automotive environments. Confirm that the 24VDC coil voltage aligns with the system power supply. Evaluate the physical dimensions and chassis mounting requirements against the available space. Consider the 75VDC switching limit when designing circuits with higher voltage transients.

Relay Automotive Part Context

This component belongs to the A3 series of automotive relays from CIT Relay and Switch. The series is characterized by large switching capacities and compact form factors suitable for vehicle integration. The A3M1CSQ24VDC2 specifically denotes a 24VDC coil variant with SPDT contacts and quick-connect terminals, distinguishing it from other pin or bracket-mounted versions within the same family.

Relay Automotive Replacement Considerations

Direct substitutes may include other CIT A3 series relays with matching 24VDC coils and SPDT configurations. Verify compatibility with existing PCB layouts or wiring harnesses due to potential differences in terminal spacing. Consult the manufacturer's cross-reference guide for approved alternative part numbers.