A2H1ASQ24VDC1.6D

Relay Automotive Overview

The A2H1ASQ24VDC1.6D is an automotive relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It features a single-pole single-throw normally open (SPST-NO) contact configuration, also known as Form A. The device operates with a 24VDC coil voltage and supports a maximum rated contact current of 40A. It utilizes quick-connect terminals for mounting and is fully sealed to protect against environmental factors. The relay is certified under cURus standards and complies with RoHS3 regulations, ensuring suitability for automotive and industrial environments requiring reliable power control.

Relay Automotive Feature Summary

• High switching capacity up to 40A for demanding loads
• Fully sealed construction for environmental protection
• Quick-connect terminal style for efficient installation

Relay Automotive Applications

• Automotive lighting circuits
• Vehicle accessory power management
• Industrial control systems

Relay Automotive Procurement Notes

Verify the specific pinout and terminal orientation against the official datasheet before integration. Confirm that the 24VDC coil voltage matches the system supply. Ensure the enclosure provides adequate sealing for the intended operating environment. Check for any required socket compatibility if base-mounted installation is planned. Validate compliance requirements such as RoHS3 and cURus for the target market.

Relay Automotive Selection Notes

Select this component when a robust, high-current relay is needed for 24VDC automotive or industrial systems. The SPST-NO configuration is ideal for simple on/off control of heavy loads like motors or lights. Consider the quick-connect interface for ease of assembly. Evaluate the sealed design benefits against the operational environment's exposure to moisture or dust compared to unsealed alternatives.

Relay Automotive Part Context

This part belongs to the CIT A2 series of automotive relays, which are characterized by their compact size and high current handling capabilities. The series is widely used in vehicle electrical architectures where reliability and space efficiency are critical. The A2H1ASQ variant specifically denotes the 24VDC coil version with quick-connect terminals, distinguishing it from other coil voltages or mounting styles within the same family.

Relay Automotive Replacement Considerations

Direct substitutes may include other CIT A2 series relays with identical 24VDC coils and SPST-NO contacts, such as A2S1ASQ24VDC1.6D if available. Verify mechanical dimensions and terminal spacing to ensure interchangeability. Cross-reference with other manufacturers' automotive relays offering 40A SPST-NO specifications, ensuring coil voltage and contact rating match exactly.