H12WD4875KPG

## **H1 SERIES | H12WD** PANEL MOUNT SOLID STATE RELAYS 

## **Features** 

- Ratings from 25A to 125A @ 48-660 VAC 

- 

- SCR output for heavy industrial loads 

- Zero Voltage or instantaneous turn-on outputs 

- UL/CSA/TUV Approved, CE Compliant to EN60950-1 

- Improved SEMS screw and washer 

- Redesigned housing with anti-rotation barriers 

- DC control 

- Direct bond copper substrate 

- EMC Compliant to Level 3 

- Direct power lead frame 

- Epoxy free design 

## **PRODUCT SELECTION** 

|**Control Voltage**|**25 A**<br>**50 A**<br>**75 A**<br>**90 A**<br>**125 A**|
|---|---|
|4-32 VDC|H12WD4825<br>H12WD4850<br>H12WD4875<br>H12WD4890<br>H12WD48125|



## **OUTPUT SPECIFICATIONS[(5)]** 

|**Description**|**25 A**|**50 A**|**75 A**|**90 A**|**125 A**|
|---|---|---|---|---|---|
|Operating Voltage (47-440 Hz) [Vrms]|48-660|48-660|48-660|48-660|48-660|
|Transient Overvoltage [Vpk]|1200|1200|1200|1200|1200|
|Maximum Off-State Leakage Current @ Rated Voltage [mArms]|1.0|1.0|1.0|1.0|1.0|
|Minimum Off-State dv/dt @ Maximum Rated Voltage [V/µsec]|500|500|500|500|500|
|Maximum Load Current [Arms]**(6)(3)**|25|50|75|90|125|
|Minimum Load Current [mArms]|150|150|150|150|150|
|Maximum 1 Cycle Surge Current (50/60 Hz) [Apk]|239/250|597/625|954/1000|1145/1200|1670/1750|
|Maximum On-State Voltage Drop @ Rated Current [Vrms]|1.15|1.15|1.15|1.15|1.15|
|Thermal Resistance Junction to Case (Rjc) [°C/W]|0.8|0.45|0.3|0.27|0.22|
|Maximum 1/2 Cycle I²t for Fusing (50/60 Hz) [A²sec]|285/259|1779/1621|4555/4150|6560/5976|13950/12709|
|Minimum Power Factor (at Maximum Load)**(7)**|0.5|0.5|0.5|0.5|0.5|



## **INPUT SPECIFICATIONS[(5)]** 

|**Description**|**DC Control**|
|---|---|
|Control Voltage Range|4-32 VDC|
|Minimum Turn-On Voltage**(7)**|4.0 VDC|
|Must Turn-OffVoltage|1 .0 VDC|
|Maximum  Reverse voltage|-32 VDC|
|Minimum Input Current|7 mADC|
|Maximum Input Current|12 mADC|
|Nominal Input Impedance|Current Regulated|
|Maximum Turn-On Time  [msec]**(8)**|1/2 Cycle|
|Maximum Turn-OffTime  [msec]|1/2 Cycle|



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## **GENERAL SPECIFICATIONS[(5)]** 

|**Description**|**Parameters**|
|---|---|
|Dielectric Strength, Input/Output/Base (50/60 Hz)|4000 Vrms|
|Minimum Insulation Resistance (@ 500 VDC)|109Ohms|
|Maximum Capacitance, Input/Output|8 pF|
|Ambient Operating Temperature Range|-40 to 80°C|
|Ambient Storage Temperature Range|-40 to 125°C|
|Weight (typical)|2.6 oz (74.9 g)|
|HousingMaterial|94 V-0|
|Baseplate Material|Aluminum|
|Input Terminal Screw Torque Range (lb-in/Nm)|13-15 /1.5-1.7|
|Load Terminal Screw Torque Range (lb-in/Nm)|18-20 / 2.0-2.2|
|SSR Mounting Screw Torque Range (lb-in/Nm)|18-20 / 2.0-2.2|
|Input/Load Terminal Screw Torque Range(lb-in/Nm) **(3)**|w/”K” option 8-10 / 0.9-1.13|
|Input/Output Terminal Screw Thread Size|#6-32 UNC / #8-32 UNC|
|Humidity per IEC60068-2-78|93% non-condensing|
|LED Input Status Indicator|w/”G”option (green)|
|MTBF (Mean Time Between Failures) at 40°C ambient temperature**(9)**|11,641,553 hours(1,328years)|
|MTBF (Mean Time Between Failures) at 60°C ambient temperature**(9)**|7,210,376 hours(823years)|



## **WIRING DIAGRAM** 

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AC Input Current vs Input Voltage<br>Recommended Wire Sizes<br>V Standard Regulated DC Input<br>Terminals Wire Size Wire Pull-Out 25<br>Load (10) (Solid / Stranded) Strength (lb)[N]<br>20<br>24 AWG (0.2 mm [2] ) / 0.2  [minimum] 10 [44.5]<br>1   (  ) 2   (  ) Input 2 x 12 AWG (3.3 mm [2] ) / 3.3  [maximum] 90 [400] 15<br>20 AWG (0.5 mm [2] ) / 0.518  [minimum] 30 [133] 10<br>1 OUTPUT 2 Output 2 x 10 AWG (5.3 mm [2] ) / 5.3 110 [490] 5<br>S O L I D  S T AT E  R E L AY 2 x 8 AWG (8.4 mm [2] ) / 8.4  [maximum] 90 [400] 0<br>0 5 10 15 20 25 30<br>4 INPUT 3 DC Input Voltage<br>4   (–) 3   (+)<br>Input Current (mA)<br>**----- End of picture text -----**<br>


## **EQUIVALENT CIRCUIT BLOCK DIAGRAM** 

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-DC 4 1 AC<br>(11)<br>Trigger (12)<br>Circuit<br>+DC 3 2 AC<br>Current<br>Limiter<br>**----- End of picture text -----**<br>


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## **MECHANICAL SPECIFICATIONS[(5)]** 

Tolerances: ±0.02 in / 0.5 mm 

All dimensions are in: inches [millimeters] 

## **Screw Termination** 

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1.1<br>0.89<br>[27.9]<br>Mounting  [22.6]<br>0.49 Hole/Slot<br>[12.4] 0.19 [4.9]<br>DIA.<br>1 OUTPUT 2<br>1.88 S O L I D  S T AT E  R E L AY 1.7 2.25<br>[47.6] [43.2] [57.3]<br>4 INPUT 3<br>1.0<br>[25.4]<br>1.75<br>[44.5]<br>**----- End of picture text -----**<br>


**Quick Connect Termination (“F” Option)  -  Up to 25 Amp (2)** 

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1.58<br>[40.2] Faston Terminal 1.31<br>Mounting  0.25 x 0.032  [33.4]<br>Hole/Slot  0.49 (2 places)<br>0.19 [4.9] [12.4]<br>DIA.<br>1 OUTPUT 2<br>1.88 S O L I D  S T AT E  R E L AY 1.7 2.25<br>[47.6] [43.2] [57.3]<br>4 INPUT 3<br>1.40<br>[35.6] Faston Terminal<br>0.187 x 0.020<br>1.75 (2 places) 1.25<br>[44.5] [31.8]<br>**----- End of picture text -----**<br>


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Hex Standoff Termination (“K” Option) (3)<br>1.1<br>[27.9] Mounting  1.04<br>Hole/Slot<br>0.49 [26.4]<br>0.19 [4.9]<br>[12.4] DIA.<br>1 OUTPUT 2<br>1.88 S O L I D  S T AT E  R E L AY 1.70    2.25<br>[47.6] [43.2]  [57.3]<br>4 INPUT 3<br>1.0  0.93<br>[25.4] [23.6]<br>(4 places)<br>1.75<br>[44.5] 1.0<br>[25.4]<br>(2 places)<br>**----- End of picture text -----**<br>


**Quick Connect Termination (“F” Option)  -  Up to 50 Amp (2)** 

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1.58 Faston Terminal<br>[40.2] 0.25 x 0.032  1.31<br>Mounting  0.63 (4 places) [33.4]<br>Hole/Slot<br>[16.0] 0.45<br>0.19 [4.9]<br>DIA. [11.4]<br>(2 places)<br>1 OUTPUT 2<br>1.88 S O L I D  S T AT E  R E L AY 1.7 2.25<br>[47.6] [43.2] [57.3]<br>4 INPUT 3<br>0.49<br>[12.4] Faston Terminal<br>1.40   0.187 x 0.020<br>1.25<br>[35.6] (2 places)<br>[31.8]<br>1.75<br>[44.5]<br>**----- End of picture text -----**<br>


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SURGE CURRENT INFORMATION<br>**----- End of picture text -----**<br>


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25 A<br>50 A<br>250<br>600<br>200 500<br>150 400<br>100 300<br>200<br>50<br>100<br>0<br>0.01 0.1 1 10 0<br>Surge Duration (Secs)  0.01 0.1 1 10<br>Surge Duration (Secs)<br>75 A<br>900 90 A<br>800 1200<br>700 1050<br>600 900<br>500 750<br>400<br>600<br>300<br>450<br>200<br>100 300<br>0 150<br>0.01 0.1 1 10 0<br>Surge Duration (Secs)  0.01 0.1 1 10<br>125 A Surge Duration (Secs)<br>1800<br>1600<br>1400<br>1200<br>1000<br>800<br>600<br>400<br>200<br>0<br>0.01 0.1 1 10<br>Surge Duration (Secs)<br>Non repetitive peak surge current at Tj initial 40ºC.<br>THERMAL DERATE INFORMATION<br>25 A 50 A 75 A<br>1.5ºC/W 2ºC/W 3ºC/W 0.7ºC/W 1ºC/W 1.5ºC/W 2ºC/W 0.5ºC/W 0.7ºC/W 1ºC/W 1.5ºC/W<br>25 50 75<br>20 40 60<br>15 30 45<br>10 20 30<br>5 10 15<br>0 0 0<br>20 30 40 50 60 70 80 20 30 40 50 60 70 80 20 30 40 50 60 70 80<br>Ambient Temperature (ºC) Ambient Temperature (ºC) Ambient Temperature (ºC)<br>90 A 125 A<br>0.5ºC/W 0.7ºC/W 1ºC/W 1.5ºC/W 0.5ºC/W 0.7ºC/W 1ºC/W<br>90 120<br>80<br>70 100<br>60 80<br>50<br>60<br>40<br>30 40<br>20<br>20<br>10<br>0 0<br>20 30 40 50 60 70 80 20 30 40 50 60 70 80<br>Ambient Temperature (ºC) Ambient Temperature (ºC)<br>Surge Current (Amp)<br>Surge Current (Amp)<br>Surge Current (Amp)<br>Surge Current (Amp)<br>Surge Current (Amp)<br>Load Current (Amps) Load Current (Amps) Load Current (Amps)<br>Load Current (Amps) Load Current (Amps)<br>**----- End of picture text -----**<br>


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## **AGENCY APPROVALS & CERTIFICATIONS** 

Designed in accordance with the requirements of IEC 62314 IEC 61000-4-2 : Electrostatic Discharge – Level 3 IEC 61000-4-4 : Electrically Fast Transients – Level 3 IEC 61000-4-5 : Electrical Surges – Level 3 IEC 600068-2-6: Vibration 0.33mm and 0.75mm Amplitude over 10-55 Hz IEC 600068-2-27: Shock Resistance 15g/11ms 

E116949 (25, 50, 75 and 90A) E116950 (125A) 

LR81689 

## **ACCESORIES** 

## **Protective Cover & Hardware Kits** 

**Protective Cover** Part number: KS101 ; 

Clear plastic cover compatible with all new S1 designs. Safety covers provide added protection from electric shock when installing or checking equipment. 

**Hardware Kit** Part number: HK4 

Bag with 2 square brass accessories and 2 screw 8-32 x 5/8 for output. Used to mount TRM1 lug terminals. 

|||**Recommended Accessories**|**Recommended Accessories**|||
|---|---|---|---|---|---|
|**Cover**|**Hardware**<br>**Kit**<br>2)|**Heat Sink**<br>**Part No.**<br>**Thermal Resistance**<br>**[ºC/W]**<br>~~e~~||**Lug Terminal**|**Thermal Pad**<br>Oo|
|KS101|HK1<br>HK4|HS501DR<br>HS301 / HS301DR<br>HS251<br>HS202 / HS202DR<br>HS201 / HS201DR<br>HS172<br>HS151 / HS151DR<br>HS122 / HS122DR<br>HS103 / HS103DR<br>HS101<br>HS073<br>HS072<br>HS053<br>HS033<br>HS023|5.0<br>3.0<br>2.5<br>2.0<br>2.0<br>1.7<br>1.5<br>1.2<br>1.0<br>1.0<br>0.7<br>0.7<br>0.5<br>0.36<br>0.25|TRM1<br>TRM6|HSP-1<br>HSP-2|



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**ORDERING OPTIONS** 

**Example: H12WD4825KPGH-10** 

|**Serires**||**H1**|**2WD**<br>**48**<br>**25**<br>**K**<br>**P**<br>**G**<br>**H**<br>**-10**|**2WD**<br>**48**<br>**25**<br>**K**<br>**P**<br>**G**<br>**H**<br>**-10**|**2WD**<br>**48**<br>**25**<br>**K**<br>**P**<br>**G**<br>**H**<br>**-10**|**2WD**<br>**48**<br>**25**<br>**K**<br>**P**<br>**G**<br>**H**<br>**-10**|**2WD**<br>**48**<br>**25**<br>**K**<br>**P**<br>**G**<br>**H**<br>**-10**|**2WD**<br>**48**<br>**25**<br>**K**<br>**P**<br>**G**<br>**H**<br>**-10**|**2WD**<br>**48**<br>**25**<br>**K**<br>**P**<br>**G**<br>**H**<br>**-10**|**2WD**<br>**48**<br>**25**<br>**K**<br>**P**<br>**G**<br>**H**<br>**-10**|**-10**|**-10**||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||||||||||||||
|||||||||||||||
|**H1**||||||||||||||
|**Transient**|**Overvoltage**|||||||||||||
|**2WD:**120|0 Vpk|||||||||||||
|**Operating**|**Voltage**|||||||||||||
|**48:**48-660|VAC|||||||||||||
|**Rated Loa**|**d Current**|||||||||||||
|**25:**25 Am<br>**50:**50 Am<br>**75:**75 Am|ps**90:**90 Amps<br>ps**125:**125 Amps<br>ps|||||||||||||
|**Terminatio**|**n**|||||||||||||
|**Blank:**Sc<br>**F:**Quick C<br>**K:**Hex sta|rew<br>onnect (Up to 50 Amps only)(1)<br>ndofs(2)|||||||||||||
|**Overvoltag**|**e Protection**|||||||||||||
|**Blank:**No<br>**P:**Include|t Included<br>d(3)|||||||||||||
|**Input Statu**|**s LED**|||||||||||||
|**Blank:**No<br>**G:**Include|t Included<br>d|||||||||||||
|**Thermal P**|**ad**|||||||||||||
|**Blank:**No<br>**H:**Include|t Included<br>d|||||||||||||
|**Note:**Not all part number combinations are available.<br>Contact Technical support for information on<br>the availability of a specifc part number.<br>Required for valid part number<br>For options only and not<br>required for valid part number<br>**Switching Type**<br>Blank:Zero Voltage Turn-On<br>**-10:**Instantaneous Turn-On(4)|**T**|||||||||||||



## **GENERAL NOTES** 

> **(1)** Single pair (up to 25A) Double pair* (50A model only). ***Caution:** User must connect to both pairs 

**(2)** Option “K” is designed and tested for use with printed circuit boards or ring/fork terminals having a thickness between 0.031 and 0.093 inches (0.79 to 2.36 mm), and loads rated up to 50 Amps. For higher load currents, the “K” standoff temperature must not exceed 105°C. For additional application assistance please contact Technical Support. 

**(3)** Output will self trigger between 900-1200Vpk, Min. power factor 0.7 or higher, not suitable for capacitive loads. 

**(4)** Instantaneous turn-on version is not recomended for capacitive loads. Use zero turn-on only. 

**(5)** 

**(6)** Heat sinking required, see derating curves. 

**(7)** Increase minimum voltage by 1V for operations from -20 to -40°C. 

**(8)** Turn-on time for Instantaneous turn-on versions is 0.02 msec. 

**(9)** All parameters at 50% power rating and 100% duty cycle. 

> **(10)** Load can be wired to either SSR output terminal 1 or 2. 

**(11)** Elective Input Status LED, “G” option. 

**(12)** Elective Overvoltage Protection, “P” option. 

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**WARNINGS** 

Page 6 

RISK OF MATERIAL DAMAGE AND HOT ENCLOSURE 

- The product’s side panels may be hot, allow the product to cool before touching. 

- Follow proper mounting instructions including torque values. 

- Do not allow liquids or foreign objects to enter this product. 

**Failure to follow these instructions can result in serious injury, or equipment damage.** 

HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH 

- Disconnect all power before installing or working with this equipment. 

- Verify all connections and replace all covers before turning on power. **Failure to follow these instructions will result in death or serious injury.** 

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## **CONTACT US** 

## **Americas** 

+1 (800) 350 2727 sales.crydom@sensata.com 

**Europe, Middle East & Africa** 

+44 (1202) 416170 ssr-info.eu@sensata.com 

## 

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Mailing Address: Sensata Technologies, Inc., 529 Pleasant Street, Attleboro, MA 02703, USA. 

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Rev. 03/28/2025