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IDEC RH Series Power Relays Brochure

Summary

Discover the RH Series miniature power relays, engineered for reliable high-capacity switching up to 10A contacts in a compact footprint. This manual provides comprehensive technical specifications and setup guidelines for various models (SPDT through 4PDT), covering diverse AC/DC coil voltages and terminal options like plug-in and PC board mounts. Ideal for professional engineers and industrial automation designers, the resource details compatibility across multiple series, ensuring precise selection for your critical electrical control systems.

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RH Series Power Relays SPDT through 4PDT, 10A contacts Midget power relays The RH series are miniature power relays with a large capac- ity. The RH relays feature 10A contact capacity as large as the RR series and the same size as IDEC’s miniature relays. The compact size saves space. Standard Mark Approval Organization / File No.

UL recognized, File No. E55996

UL508

No. E66043

CSA C22.2 No.14 CSA File No. LR35144

EN61810-1

EU Low Voltage Directive

SPDT DPDT

Termination Style

Part No. Coil Voltage Code ∗ Part No. Coil Voltage Code ∗ RH1B-U∗ RH2B-U∗

Basic

RH1B-UW∗ RH2B-UW∗ RH1B-UL∗ RH2B-UL∗

With Indicator AC6, AC12, AC24, AC50, AC6, AC12, AC24, AC50,

RH1B-ULW∗ RH2B-ULW∗

AC100, AC110, AC115, AC120, AC100-110, AC110-120,

With Check Button AC200, AC220, AC230, AC240 RH2B-UC∗ AC200-220, AC220-240

DC6, DC12, DC24, DC48, DC6, DC12, DC24, DC48,

With Indicator and

DC100, DC110 RH2B-ULC∗ DC100-110

Plug-in Check Button

Terminal

RH1B-UT∗ RH2B-UT∗

Top Bracket Mounting

RH1B-UTW∗ RH2B-UTW∗

With Diode RH1B-UD∗ DC6, DC12, DC24, DC48, RH2B-UD∗ (DC coil only) RH1B-UDW∗ DC100, DC110 RH2B-UDW∗

DC6, DC12, DC24, DC48, DC100-110With Indicator and

RH1B-ULD∗ RH2B-ULD∗

Diode

RH1B-ULDW∗ RH2B-ULDW∗

(DC coil only)

AC6, AC12, AC24, AC50, AC100, AC110, AC115, AC120, AC6, AC12, AC24, AC50,

RH1V2-U∗ RH2V2-U∗

Basic AC200, AC220, AC230, AC240 AC100-110, AC110-120,

RH1V2-UW∗ RH2V2-UW∗

DC6, DC12, DC24, DC48, AC200-220, AC220-240

PC Board DC100, DC110 DC6, DC12, DC24, DC48, Terminal DC100-110

RH2V2-UL∗

With Indicator

RH2V2-ULW∗

With Diode RH1V2-UD∗ DC6, DC12, DC24, DC48, RH2V2-UD∗ DC6, DC12, DC24, DC48, (DC coil only) RH1V2-UDW∗ DC100 RH2V2-UDW∗ DC100-110

• Part number ending with W is cadmium free.

Part No. Development When ordering, specify the Part No. and coil voltage code. (Example)  RH2B-U AC100-110

Part No. Coil Voltage Code

Page Summary Contents For IDEC RH Series Power Relays Brochure

Page 1 RH Series Power Relays SPDT through 4PDT, 10A contacts Midget power relays The RH series are miniature power relays with a large capac- ity. The RH relays feature 10A contact capacity as large as the ...
Page 2 RH Series Power Relays 3PDT 4PDT Termination Style Part No. Coil Voltage Code ∗ Part No. Coil Voltage Code ∗ RH3B-U∗ RH4B-U∗ Basic RH3B-UW∗ RH4B-UW∗ Relays AC6, AC12, AC24, RH4B-UL∗ AC6, AC12, AC24, A...
Page 3 RH Series Power Relays Contact Ratings Maximum Contact Capacity UL Ratings (cadmium free) Allowable Contact Power Rated Load Resistive General use Horse Power Rating Continuous Contact Resistive Induc...
Page 4 RH Series Power Relays Internal Connection (Bottom View) Basic With Check Button SPDT DPDT 3PDT 4PDT Relays Pushbutton Contacts can be operated by press- ( – ) ( + ) ing the check button. Press the bu...
Page 5 RH Series Power Relays Lo ad ur re nt Characteristics (Reference Data) Maximum Switching Capacity Li fe 0, op er at io ns Li fe 0, op er at io ns Li fe 0, op er at io ns (RH1) (RH2/RH3/RH4) 10.0 10.0 ...
Page 6 RH Series Power Relays Continuous Load Current vs. Operating Temperature Curve (Basic, With Check Button, and Top Bracket Mounting) Note: The rated voltage is Note: The rated voltage is pe ra tin em p...
Page 7 RH Series Power Relays SPDT Plug-in Terminal (Top Bracket Mounting) DPDT Plug-in Terminal (Top Bracket Mounting) RH1B-UT RH2B-UT ø2.6 hole ø2.6 hole 3.5 5.42 3.5 14.5 35.6 max. 6.4 21.5 35.6 max. 6.4 ...

Manual Details

Brand IDEC
Pages 7
File Size 439.21 KB
Published June 05, 2026
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Frequently Asked Questions

What is the contact capacity of the RH Series relays?

The RH relays feature a 10A contact capacity.

Which series offer plug-in terminal options?

RH1B (UT) and RH2B (UT) are available with Plug-in Terminal option for top bracket mounting.

What is the operating temperature range?

The operating temperature range is 0.5 to 47°C.

Are there options for different coil voltages?

Coil voltage codes specify various AC and DC options, such as AC100-110 or DC6-DC24.