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General Purpose Relays Relay Plug-In SPDT 10A 24VAC


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Overview of RH1B-UAC24V

The RH1B-UAC24V is a miniature power relay with a 24V AC coil voltage.It is designed for small-scale electrical control applications requiring reliable switching capabilities.


(Note:The pin configuration below is a general representation.Refer to the specific datasheet for precise details.)

  • NO:Normally Open Contact
  • COM:Common Contact
  • NC:Normally Closed Contact
  • A1:Coil Terminal 1
  • A2:Coil Terminal 2
  • +24V:24V AC Power Supply

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the RH1B-UAC24V relay for a visual representation.

Key Features

  • Miniature Size:The RH1B-UAC24V relay features a compact design,ideal for applications with limited space.
  • Reliable Operation:Ensures dependable switching performance for various electrical control applications.
  • 24V AC Coil Voltage:Designed to operate with a 24V AC power supply,commonly found in industrial and commercial environments.
  • Long Electrical Life:Offers a high number of switching cycles for extended operational longevity.
  • Plug-In Type:Allows for easy installation and replacement in compatible relay sockets.

Note:For detailed technical specifications,please refer to the RH1B-UAC24V datasheet.


  • Industrial Control Systems:Suitable for use in industrial automation systems for controlling motors,solenoids,and lighting.
  • HVAC Systems:Commonly employed in heating,ventilation,and air conditioning systems for switching various components.
  • Automation Equipment:Ideal for integrating into automation equipment to control sequential operations.


The RH1B-UAC24V relay is designed to provide reliable switching of electrical circuits with a 24V AC coil voltage.It offers a compact and efficient solution for control applications requiring electrical isolation.

Usage Guide

  • Coil Connections:Connect terminals A1 and A2 of the relay coil to the 24V AC power supply.
  • Contact Connections:Utilize the NO, COM, and NC contacts for switching the load circuit based on the relay operation.
  • Socket Installation:Insert the RH1B-UAC24V relay into a compatible relay socket for secure and convenient mounting.


For similar functionalities,consider these alternatives to the RH1B-UAC24V relay:

  • OMRON G2R-1-E:Another miniature power relay with 24V AC coil voltage and reliable switching performance.
  • Panasonic JS1a-24V-F:Compact relay suitable for industrial control applications with a 24V AC coil.


The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category General Purpose Relays RoHS True
REACH Details Product Power Relays
Type Compact Coil Voltage 24 VAC
Relay Contact Form 1 Form C (SPDT-NO, NC) Contact Current Rating 10 A
Contact Termination Plug In Mounting Style Panel Mount
Switching Voltage 220 VAC, 30 VDC Coil Type Non-Latching
Coil Resistance 300 Ohms Coil Current 42 mA
Contact Material Silver Cadmium Oxide (AgCdO) Series RH
Length 27.5 mm Width 14 mm
Height 35.6 mm Brand IDEC
Contact Rating 10 A Power Consumption 800 mW
Product Type General Purpose Relays Factory Pack Quantity 1
Subcategory Relays

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