RA2A48D40M

**RA2A** 

## **RA2A** 

## **2-pole solid state relays** 

## **Main features** 

- AC switching solid state relay 

- Zero cross switching 

- Back to back thyristor output 

- Direct copper bonding (DCB) technology 

- For resistive and inductive AC loads 

- DC control voltage 

- LED for control presence indication for each independent pole 

- 6.35 mm Faston termination for control and output terminals 

## **Description** 

This 2-pole industrial relay minimises the space requirements in a control cabinet without compromising performance. By applying an input voltage on control A, the corresponding output semiconductor is activated at the first zero crossing of the line voltage. The same applies to control B. 

LEDs indicate the control status of each pole. The optimised design is free of moulding mass to reduce internal mechanical stress. 

The RA2A..M types have been specially customised for demanding inductive loads. 

Specifications are at a surrounding temperature of 25°C unless otherwise specified. 

## **Applications** 

Plastic injection machines, extrusion machines, blow moulding machines, thermoformers, coffee machines, electrical ovens, fryers, shrink tunnels, reflow ovens. 

## **Main functions** 

- 2 independent pole switching solid state relay 

- Zero cross switching 

- Ratings up to 600 VAC, 40 AAC per pole 

- 4.5 - 32 VDC control voltage range 

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## **Order code** 

## **RA2A D** 

Enter the code option instead of . Refer to selection guide section for valid part numbers. 

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Code Option Description Comments<br>R -<br>A - Solid State Relay (RA)<br>2 - 2-pole switching<br>A - Zero cross switching (ZC)<br>23 Rated voltage: 24-265 VAC, 650 Vp<br>48 Rated voltage: 42-530 VAC, 1200 Vp<br>60 Rated voltage: 42-660 VAC, 1200 Vp<br>D Control voltage: 4.5 - 32 VDC<br>25 Rated current: 2 x 25 AAC<br>40 Rated current: 2 x 40 AAC<br>- Type: Resistive load<br>M Type: Inductive load<br>**----- End of picture text -----**<br>


## **Selection guide** 

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Rated voltage,  Maximum rated operational current*<br>Switching mode Control voltage<br>Blocking voltage 2 x 25 AAC 2 x 40 AAC<br>230 VAC, RA2A23D25 RA2A23D40<br>650 Vp RA2A23D25M RA2A23D40M<br>480 VAC, RA2A48D25 RA2A48D40<br>Zero cross 4.5 - 32 VDC<br>1200 Vp RA2A48D25M RA2A48D40M<br>600 VAC, RA2A60D25 RA2A60D40<br>1200 Vp RA2A60D25M RA2A60D40M<br>**----- End of picture text -----**<br>


* With suitable heatsink. 

## **Carlo Gavazzi compatible components** 

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Description Component code Notes<br>**----- End of picture text -----**<br>


|**Description**|**Component code**|**Notes**|
|---|---|---|
||||
|**Graphite thermal pad**|KK071CUT|- Dimensions: 35 x 43 x 0.25 mm<br>- Packing quantity: 50 pcs.|
|**Heatsink**|RHS|Heatsinks and accessories|



## **Carlo Gavazzi further reading** 

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Information Where to find it Notes<br>Datasheet https://gavazziautomation.com/images/PIM/DATASHEET/ Accessories datasheet<br>ENG/SSR_Accessories.pdf<br>https://www.gavazziautomation.com/en-global/products/solid- Online Heatsink selector tool<br>state-relays/heatsink-selector-tool<br>**----- End of picture text -----**<br>


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## **Structure** 

|L1, T1<br>A2-|||B1+<br>L2, T2<br>Green LEDs<br>A1+<br>B2-|B1+<br>L2, T2<br>Green LEDs<br>A1+<br>B2-|L2, T2|
|---|---|---|---|---|---|
||L1, T1|||||
||A2-|||||
|**Element**||**Component**<br>||**Function**||
|**L1, T1**||Power connections||Mains and load connections for pole A||
|**L2, T2**||Power connections||Mains and load connections for pole B||
|**A1+, A2-**||Control connection||Terminals for control voltage for pole A||
|**B2+, B2-**||Control connection||Terminals for control voltage for pole B||
|**Green LEDs**||Control indicator||Indicates presence of control voltage (pole A and pole B)||



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## **Features** 

## **General data** 

|**Material**|Noryl GFN 1, black|Noryl GFN 1, black|
|---|---|---|
|**Mounting**|Panel mount||
|**Base plate**<br>**25, 40 A**<br>**40 A(M type)**|Aluminium, nickel-plated<br>Copper, nickel-plated||
|**Isolation**|Input and Output to Case<br>Input to Output|4000 Vrms<br>4000 Vrms|
|**Weight**|RA2A23..<br>RA2A48.., RA2A60..|approx. 60g<br>approx. 64g|
|**FASTON terminal size**|6.35 x 0.8 mm||
|**Relay**<br>**Mounting screws**<br>**Mounting torque**|M5<br>1.5 - 2.0 Nm||



## **Dimensions** 

Dimensions in mm unless otherwise noted. Tolerances +/- 0.5mm. 

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## **Performance** 

## **Output specifications** 

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RA2A...25 RA2A...40 RA2A...25M RA2A...40M<br>Max. operational current: AC-51  2 x 25 AACrms 2 x 40 AACrms 2 x 25 AACrms 2 x 40 AACrms<br>Max. operational current: AC-53a  - - 2 x 5 AACrms 2 x 15 AACrms<br>Operational frequency range 45 to 65 Hz<br>Leakage current @<br>< 3 mA<br>rated voltage<br>Power factor<br>  RA2A ≥ 0.95 @ rated voltage<br>  RA2A..M ≥ 0.50 @ rated voltage<br>Minimum operational current 150 mA 250 mA 150 mA 250 mA<br>Non-repetitive surge current<br>325 Ap 600 Ap 325 Ap 600 Ap<br>(ITSM), t=10 ms<br>I²t for fusing (t=10 ms), min. 525 A²s 1800 A²s 525 A²s 1800 A²s<br>Critical dV/dt (@Tj init = 40°C) 500 V/μs<br>**----- End of picture text -----**<br>


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Output voltage specifications<br>RA2A23... RA2A48... RA2A60...<br>Operational voltage range, Ue 24 to 265 VACrms 42 to 530 VACrms 42 to 660 VACrms<br>Blocking voltage 650 Vp 1200 Vp 1200 Vp<br>**----- End of picture text -----**<br>


## **Inputs** 

|**Inputs**||
|---|---|
|**Control voltage range**|4.5 - 32 VDC|
|**Pick-up voltage**|4.25 VDC|
|**Drop-out voltage**|2.0 VDC|
|**Maximum reverse voltage**|32 VDC|
|**Response time pick-up @ 50 Hz**|≤10 ms|
|**Response time drop-out @ 50 Hz**|≤10 ms|
|**Input current per pole @ max. input voltage**|≤10 mA|



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## **Output power dissipation** 

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50<br>45<br>40<br>35<br>30<br>25<br>RA2A…25<br>RA2A…40<br>20<br>15<br>10<br>5<br>0<br>0 5 10 15 20 25 30 35 40 45<br>Load Current per pole in AACrms<br>Power dissipation  per pole in W<br>**----- End of picture text -----**<br>


## **Applications** 

Care must be taken to ensure proper heatsinking when the relay is to be used at high sustained currents. Adequate electrical connection between relay terminals and cable must be ensured. 

## **Thermal characteristics** 

The thermal design of solid state relays is very important. It is essential that the user makes sure that cooling is adequate and that the maximum junction temperature of the relay is not exceeded. 

If the heatsink is placed in a small closed room, control panel or the like, the power dissipation can cause the ambient temperature to rise. The heatsink is to be calculated on the basis of the ambient temperature and the increase in temperature. 

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Heat Flow<br>Rth j-c Rth c-s Rth s-a<br>Junction Case Heatsink Ambient<br>temperature temperature temperature temperature<br>Thermal resistance: Rth c-s = case to heatsink<br>Rth j-c = junction to case Rth s-a = heatsink to ambient<br>**----- End of picture text -----**<br>


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## **Heatsink selection** 

Thermal resistance [°C/W] of RA2A....25/25M 

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Load  Surrounding ambient temperature  [°C]<br>current<br>20 30 40 50 60 70<br>[A]<br>50 1.11 0.94 0.78 0.62 0.46 0.29<br>45 1.36 1.17 0.99 0.80 0.61 0.43<br>40 1.68 1.47 1.25 1.03 0.81 0.60<br>35 2.06 1.80 1.54 1.29 1.03 0.77<br>30 2.5 2.2 1.87 1.56 1.25 0.94<br>25 3.1 2.7 2.3 1.9 1.6 1.17<br>20 4.0 3.5 3.0 2.5 2.0 1.52<br>15 6.0 5.0 4.0 3.5 2.8 2.1<br>10 9.0 8.0 7.0 6.0 4.0 3.3<br>5 18.0 16.0 14.0 12.0 9.0 7.0<br>**----- End of picture text -----**<br>


Thermal resistance [°C/W] of RA2A....40 

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Load  Surrounding ambient temperature  [°C]<br>current<br>20 30 40 50 60 70<br>[A]<br>80 0.68 0.56 0.44 0.32 0.19 0.07<br>72 0.87 0.73 0.59 0.45 0.31 0.17<br>64 1.10 0.94 0.78 0.62 0.45 0.29<br>56 1.41 1.22 1.03 0.83 0.64 0.45<br>48 1.8 1.6 1.36 1.13 0.90 0.67<br>40 2.3 2.0 1.7 1.4 1.1 0.86<br>32 3.0 2.6 2.2 1.9 1.5 1.1<br>24 4.0 4.0 3.0 2.6 2.0 1.5<br>16 6.0 6.0 5.0 4.0 3.0 2.4<br>8 13.0 12.0 10.0 8.0 7.0 5.0<br>**----- End of picture text -----**<br>


Thermal resistance [°C/W] of RA2A....40M 

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Load  Surrounding ambient temperature  [°C]<br>current<br>20 30 40 50 60 70<br>[A]<br>100 0.41 0.32 0.23 0.13 0.04 -<br>90 0.55 0.44 0.34 0.23 0.13 0.02<br>80 0.72 0.60 0.48 0.35 0.23 0.11<br>70 0.95 0.80 0.66 0.52 0.37 0.23<br>60 1.25 1.08 0.90 0.73 0.56 0.39<br>50 1.7 1.5 1.25 1.04 0.83 0.61<br>40 2.2 1.9 1.6 1.4 1.1 0.82<br>30 3.0 2.7 2.3 1.9 1.5 1.14<br>20 5.0 4.0 4.0 2.9 2.3 1.8<br>10 10.0 9.0 7.0 6.0 5.0 3.6<br>5 20.0 17.0 15.0 12.0 10.0 7.0<br>**----- End of picture text -----**<br>


Note: Add the currents of both poles and compare with datasheets for proper heatsink. Each pole can handle up to the maximum current specified. 

Example: Each pole of the RA2A23D25 can handle a maximum of 25 A. 

## **Thermal data** 

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RA2A...25. RA2A...40 RA2A...40M<br>Junction temperature ≤ 125°C ≤ 125°C ≤ 125°C<br>Rth junction to case<br>  1 pole 1°C/W 1°C/W 0.92°C/W<br>  2 pole 0.5°C/W 0.5°C/W 0.46°C/W<br>Rth junction to ambient ≤ 20°C/W ≤ 20°C/W ≤ 20°C/W<br>**----- End of picture text -----**<br>


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## **Compatibility and conformance** 

|**Approvals**<br>~~CE~~Ads & AL|**Approvals**<br>~~CE~~Ads & AL|**Approvals**<br>~~CE~~Ads & AL|**Approvals**<br>~~CE~~Ads & AL|
|---|---|---|---|
|**Standards compliance**<br>LVD:<br>EMCD:<br>UR:<br>cUR:<br>CSA:<br>EN 60947-4-3<br>EN 60947-4-3<br>UL508 Recognized (E80573), NRNT2<br>C22.2 No. 14 (E80573), NRNT8<br>C22.2 No. 14 (204075)<br>**UL short circuit current rating**<br>65 kArms (refer to short circuit current section, Type 1 – UL508)<br>~~a~~||||
||**Electromagnetic compatibility (EMC) - Immunity**|||
||**Electrostatic discharge (ESD)**<br>EN/IEC 61000-4-2<br>8 kV air discharge, 4 kV contact (PC2)|||
||**Radiated radio frequency**<br>EN/IEC 61000-4-3<br>10 V/m, from 80 MHz to 1 GHz (PC1)<br>10 V/m, from 1.4 to 2 GHz (PC1)<br>3 V/m,from 2 to 2.7 GHz(PC1)|||
||**Electrical fast transient (burst)**<br>EN/IEC 61000-4-4<br>Output: 2 kV, 5 kHz (PC2)<br>Input: 1 kV,5 kHz(PC1)|||
||**Conducted radio frequency**<br>EN/IEC 61000-4-6<br>10 V/m,from 0.15 to 80 MHz(PC1)|||
||**Electrical surge**<br>EN/IEC 61000-4-5<br>Output, line to line: 1 kV (PC2)<br>Output, line to earth: 1 kV (PC2)<br>Output, line to earth: 2 kV (PC2) with external varistor<br>Input, line to line: 1 kV (PC2)<br>Input, line to earth: 2 kV(PC2)|||
||**Voltage dips**<br>EN/IEC 61000-4-11<br>0% for 0.5, 1 cycle (PC2)<br>40% for 10 cycles (PC2)<br>70% for 25 cycles (PC2)<br>80% for 250 cycles(PC2)|||
||**Voltage interruptions**<br>EN/IEC 61000-4-11<br>0% for 5000 ms(PC2)|||
|||||
||**Electromagnetic compatibility (EMC) - Emissions**|||
||**Radio interference field**<br>**emission (radiated)**<br>EN/IEC 55011<br>Class A: from 30 to 1000 MHz|||
||**Radio interference voltage**<br>**emissions (conducted)**<br>EN/IEC 55011<br>Class A (Industrial) with external filters: from 0.15 to 30 MHz|||



## Note: 

- The power circuit to this component may require external suppression to be connected across the power terminals. 

- Control input lines must be installed together to maintain products’ susceptability to Radio Frequency interference. 

- Performance Criteria 1 (PC1): No degradation of performance or loss of function is allowed when the product is operated as intended. 

- Performance Criteria 2 (PC2): During the test, degradation of performance or partial loss of function is allowed. However when the test is complete the product should return operating as intended by itself. 

- Performance Criteria 3 (PC3): Temporary loss of function is allowed, provided the function can be restored by manual operation of the controls. 

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## **Environmental specifications** 

|**Operating temperature**|-20°C to +70°C(-4°F to +158°F)|
|---|---|
|**Storage temperature**|-20°C to +80°C(-4°F to +212°F)|
|**Relative humidity**|95% non-condensing @40°C|
|**Pollution degree**|2|
|**EU RoHS compliant**|Yes|
|**China RoHS**|25|



The declaration in this section is prepared in compliance with People’s Republic of China Electronic Industry Standard SJ/ T11364-2014: Marking for the Restricted Use of Hazardous Substances in Electronic and Electrical Products. 

||**Toxic or Harardous Substances and Elements**|**Toxic or Harardous Substances and Elements**|**Toxic or Harardous Substances and Elements**|**Toxic or Harardous Substances and Elements**|**Toxic or Harardous Substances and Elements**|**Toxic or Harardous Substances and Elements**|
|---|---|---|---|---|---|---|
|**Part Name**|Lead<br>(Pb)|Mercury<br>(Hg)|Cadmium<br>(Cd)|Hexavalent<br>Chromium<br>(Cr(Vl))|Polybrominat-<br>ed biphenyls<br>(PBB)|Polybromi-<br>nated diphenyl<br>ethers (PBDE)|
|**Power Unit**<br>**Assembly**|x|O|O|O|O|O|
|O: Indicates that said hazardous substance contained in homogeneous materials fot this part are below the limit<br>requirement of GB/T 26572.<br>X: Indicates that said hazardous substance contained in one of the homogeneous materials used for this part is above<br>the limit requirement of GB/T 26572.|||||||



## 这份申明根据中华人民共和国电子工业标准 

## SJ/T11364-2014：标注在电子电气产品中限定使用的有害物质 

|零件名称|有毒或有害物质与元素|有毒或有害物质与元素|有毒或有害物质与元素|有毒或有害物质与元素|有毒或有害物质与元素|有毒或有害物质与元素|
|---|---|---|---|---|---|---|
||铅<br>(Pb)|汞<br>(Hg)|镉<br>(Cd)|六价铬<br>(Cr(Vl))|多溴化联苯<br>(PBB)|多溴联苯醚<br>(PBDE)|
|功率单元|x|O|O|O|O|O|
|O:此零件所有材料中含有的该有害物低于GB/T 26572的限定。<br>X: 此零件某种材料中含有的该有害物高于GB/T 26572的限定。|||||||



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## **Short circuit protection** 

## **Protection Co-ordination, Type 1 vs Type 2:** 

Type 1 protection implies that after a short circuit, the device under test will no longer be in a functioning state. In type 2 coordination the device under test will still be functional after the short circuit. In both cases, however, the short circuit has to be interrupted. The fuse between enclosure and supply shall not open. The door or cover of the enclosure shall not be blown open. There shall be no damage to conductors of terminals and the conductors shall not separate from terminals. Therese shall be no breakage or cracking of insulating bases to the extent that the integrity of the mounting of live parts is impaired. Discharge of parts or any risk of fire shall not occur. 

The product variants listed in the table hereunder are suitable for use on a circuit capable of delivering not more than 65,000 Arms Symmetrical Amperes, 600 Volts maximum when protected by fuses. Tests at 65,000 A were performed with Class J, fast acting: please refer to the table below for maximum allowed ampere rating of the fuse. Use fuses only. 

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Protection co-ordination Type 1 according to UL 508<br>Prospective short<br>Part No. Max. fuse size [A] Class Voltage [VAC]<br>circuit current [kArms]<br>RA2A..25.. 30 J / CC<br>65 40 J Max. 600<br>RA2A..40..<br>20 HSJ20 (Mersen)<br>Protection co-ordination Type 2 (IEC/EN 60947-4-3)<br>Prospective short circuit  Ferraz Shawmut (Mersen)<br>Part No. Voltage [VAC]<br>current [kArms] Max. fuse size [A] Part number<br>RA2A..25.. 25 6.9 gRC 10- 25<br>10 Max. 600<br>RA2A..40.. 40 6.9xx CP gRC 14x51/40<br>**----- End of picture text -----**<br>


xx= 00 without fuse trip indication 

xx = 21 with fuse trip indication 

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Protection co-ordination Type 2 with Minature Circuit Breakers (M.C.B.s)<br>Solid State Relay type ABB Model no. for Z - type  ABB Model no. for B - type  Wire cross sectional area  Minimum length of Cu<br>M. C. B. (rated current) M. C. B. (rated current) [mm [2] ] wire conductor [m] [1]<br>**----- End of picture text -----**<br>


|**Protection co-ordination Type 2 with Minature Circuit Breakers(M.C.B.s)**|**Protection co-ordination Type 2 with Minature Circuit Breakers(M.C.B.s)**|**Protection co-ordination Type 2 with Minature Circuit Breakers(M.C.B.s)**|**Protection co-ordination Type 2 with Minature Circuit Breakers(M.C.B.s)**|**Protection co-ordination Type 2 with Minature Circuit Breakers(M.C.B.s)**|
|---|---|---|---|---|
|**Solid State Relay type**|**ABB Model no. for Z - type**<br>**M. C. B.(rated current)**|**ABB Model no. for B - type**<br>**M. C. B.(rated current)**|**Wire cross sectional area**<br>**[mm2]**|**Minimum length of Cu**<br>**wire conductor[m]1**|
||||||
|RA2A..25<br>(525 A2s)|1-pole<br>S201 - Z4 (4A)<br>S201 - Z6 UC (6A)|S201 - B2 (2A)<br>S201 - B2 (2A)|1.0<br>1.0<br>1.5|21.0<br>21.0<br>31.5|
|RA2A..40<br>(1800 A2s)|1-pole<br>S201 - Z10 (10A)|S201 - B4 (4 A)|1.0<br>1.5<br>2.5|7.6<br>11.4<br>19.0|
||S201 - Z16 (16A)|S201 - B6 (6 A)|1.0<br>1.5<br>2.5<br>4.0|5.2<br>7.8<br>13.0<br>20.8|
||S201 - Z20 (20A)|S201 - B10 (10 A)|1.5<br>2.5|12.6<br>21.0|
||S201 - Z25 (25A)|S201 - B13 (13 A)|2.5<br>4.0|25.0<br>40.0|
||2-pole<br>S202 - Z25 (25A)|S202 - B13 (13 A)|2.5<br>4.0|19.0<br>30.4|



1. Between MCB and Load (including return path which goes back to the mains) 

Note: A prospective current of 6 kA and a 230 / 400 V power supply is assumed for the above suggested specifications. For cables with different cross section than those mentioned above please consult Carlo Gavazzi's Technical Support Group. S201 models refer to 1-pole M.C.B., S202 models refer to 2-poles M.C.B. 

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## **Functional diagram** 

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(+) Regulation T1<br>ZC<br>Control  Output A<br>input A<br>(-) L1<br>(+) Regulation T2<br>ZC<br>Control  Output B<br>input B<br>(-) L2<br>**----- End of picture text -----**<br>


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## **Connection Diagram** 

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**----- Start of picture text -----**<br>
A single two pole relay in a three phase application. A single two pole relay in a three phase application.  A two pole relay and a single pole relay connected on a A two pole relay and a single pole relay connected on a<br>Star and Delta (Economy switch) Star and Delta (Economy switch) three phase application. Delta, star and star with a neutral three phase application. Delta, star and star with a neutral<br>point.<br>point.<br>L1<br>L2<br>L3<br>N<br>**----- End of picture text -----**<br>


COPYRIGHT ©2025 Content subject to change. Download the PDF: https://gavazziautomation.com 

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