SHENZHEN GANGXINLI ELECTRONICS CO.,LTD

SHENZHEN GANGXINLI ELECTRONICS CO.,LTD

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2026/4/1

Introduction to PR4-24V-450-1A

.Overview of product

The PR4-24V-450-1A is a high-performance power relay produced by Same Sky (Formerly CUI Devices), belonging to the PR4 series, with strong load capacity and stable switching performance, widely used in various power control scenarios.

 

.Core parameter

Category:Relays,Power Relays, Over 2 Amps

Mfr:Same Sky (Formerly CUI Devices)

Series:PR4

Packaging:Box

Part Status:Active

Mounting Type:Through Hole

Coil Voltage:24VDC

Contact Form:SPST-NO (1 Form A)

Contact Rating (Current):5 A

Switching Voltage:277VAC, 30VDC - Max

Load - Max Switching:1385VA, 150W

Coil Current:18.8 mA

Termination Style:PC Pin

Must Operate Voltage:16.8 VDC

Must Release Voltage:2.4 VDC

Operate Time:10 ms

Release Time:5 ms

Operating Temperature:-40°C ~ 85°C

Contact Material:Silver Alloy

Coil Resistance:1.28 kOhms

 

.Main characteristics

High Load Capacity:Boasts a contact rating of 5A and a maximum switching load of 1385VA/150W, capable of handling high-power electrical loads stably without easy damage.

Stable Coil Performance:Features a 24VDC coil voltage, 18.8mA coil current, and 1.28kOhms coil resistance, ensuring low power consumption and reliable coil activation and deactivation.

Fast Switching Speed: Has an operate time of 10ms and a release time of 5ms, enabling quick response to control signals and meeting the needs of high-efficiency switching scenarios.

Wide Voltage Adaptation:Supports a maximum switching voltage of 277VAC and 30VDC, compatible with both AC and DC power systems, expanding its application scope.

Durable Contact Material:Adopts silver alloy contact material, which has excellent electrical conductivity, wear resistance and corrosion resistance, extending the service life of the relay.

 

.Application field

Home Appliance Control:Used in household air conditioners and electric water heaters to control the on/off of high-power heating or cooling components, ensuring safe and stable operation.

Industrial Equipment:Applied in small industrial pumps and conveyor belts, switching the power supply of the equipment to realize automatic start-stop control in production lines.

Lighting Systems:Used in commercial LED panel lights and street lamp controllers, controlling the switching of lighting circuits to achieve energy-saving and intelligent management.

Power Supply Modules:Integrated into AC-DC power adapters and UPS backup power supplies, switching between main power and backup power to ensure uninterrupted power supply.

Automotive Auxiliaries:Used in automotive rear window defrosters and car air blowers, controlling the power supply of these auxiliaries to improve driving comfort and safety.

 

.Summary

The PR4-24V-450-1A power relay integrates high load capacity, stable performance and wide adaptability, with reliable switching and durable structure. It provides a safe and efficient power control solution for home appliances, industrial equipment, lighting systems and other fields, and is a cost-effective choice for power control applications.