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


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Overview of RH1B-UDC24V

The RH1B-UDC24V is a general-purpose miniature power relay with a 24VDC coil. It is designed for use in various control and automation applications, providing reliable switching of electrical circuits.


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

  • A1: Coil terminal 1
  • A2: Coil terminal 2
  • 11: Normally open contact
  • 12: Common contact
  • 14: Normally closed contact

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the RH1B-UDC24V power relay for a visual representation.

Key Features

  • Miniature Power Relay: Compact design suitable for space-constrained applications.
  • 24VDC Coil: Operates with a 24VDC control signal, compatible with standard control systems.
  • High Switching Capacity: Capable of switching high-current electrical loads for various industrial and commercial applications.
  • Long Electrical Life: Provides long-term reliability with a high number of operating cycles.
  • Quick Response: Offers fast response times for efficient control and switching operations.

Note: For detailed technical specifications, please refer to the RH1B-UDC24V datasheet.


  • Control Systems: Ideal for use in control panels and automation systems for switching and control of electrical loads.
  • Industrial Machinery: Suitable for integration into industrial equipment and machinery for reliable power switching.
  • Home Automation: Used in home automation systems for controlling lighting, heating, and other electrical appliances.


The RH1B-UDC24V power relay enables the controlled switching of electrical circuits in various applications, providing reliable and efficient operation.

Usage Guide

  • Coil Connection: Connect terminals A1 and A2 to the 24VDC power supply for coil operation.
  • Contact Connections: Use terminals 11, 12, and 14 for the normally open, common, and normally closed contacts respectively.

Frequently Asked Questions

Q: Is the RH1B-UDC24V suitable for automotive applications?
A: While the RH1B-UDC24V can handle high currents, it's essential to verify its compatibility with automotive requirements and environmental conditions.


For similar functionalities, consider these alternatives to the RH1B-UDC24V:

  • G2R-1A-E-DC24: A similar power relay from Omron with compatible features for various control applications.
  • HK4100F-DC24V-SHG: This power relay from Songle provides comparable performance and is suitable for similar control and switching tasks.


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 VDC
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 750 Ohms Coil Current 32 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 Unit Weight 0.892167 oz

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