# SOLID STATE RELAY, 600VAC, 50A, PANEL

![Product image](https://novapart.co/image/farnell:3884149/)

**URL**: https://novapart.co/products/RAM1A60D50/solid-state-relay-600vac-50a-panel
**SKU**: RAM1A60D50
**Manufacturer**: CARLO GAVAZZI
**Price**: €77.6300
**Stock**: 10+
**Lead Time**: 130 days (indicative)

## Description

Contact Configuration:SPST-NO; Load Current:50A; Operating Voltage Max:660VAC; Relay Mounting:Panel Mount; Relay Terminals:Screw; Switching Mode:Zero Crossing; O 93C3768

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (21-Jan-2025) |
| Load Current | 50A |
| Product Range | RAM1A Series |
| Relay Mounting | Panel Mount |
| Switching Mode | Zero Crossing |
| Relay Terminals | Screw |
| Control Voltage Max | 32VDC |
| Control Voltage Min | 4VDC |
| Contact Configuration | SPST-NO |
| Operating Voltage Max | 660VAC |
| Operating Voltage Min | 42VAC |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3884149/)

## **Solid State Relays Industrial, 1-Phase ZS (IO) w. LED Types RAM1A, RAM1B** 

- **Zero switching (RAM1A) or instant-on switching (RAM1B) AC Solid State Relay** 

- **Direct copper bonding (DCB) technology** 

- **LED indication** 

- **Clip-on IP 20 protection cover** 

- **Self-lifting terminals** 

- **Housing free of moulding mass** 

- **2 input ranges: 3-32 * and 20-280 VAC/22-48 VDC** 

- **Operational ratings: Up to 125 AACrms and 690 VACrms** 

- **Blocking voltage: Up to 1600 Vp** 

- **Opto-isolation: > 4000 VACrms** 

- **Integrated overvoltage protection by self switching (suffix “Z” option)** 

**==> picture [7 x 8] intentionally omitted <==**

**----- Start of picture text -----**<br>
s<br>**----- End of picture text -----**<br>


## **Product De scri tion p** 

**Product De scri tion Orderin Ke p g y RAM 1 A 60 D 125 Z** The industrial, 1-phase relay es zero.  The instant-on relay **Solid State Relay** with antiparallel thyristor outwith DC control input can be **Number of poles** put is the most widely used used for phase angle control. **Switching mode** indus trial SSR due to its The built-in snubber secures **Rated operational voltage** multiple application possibiltransient protection. The **Control voltage** —EESSSSOSOEOSSX—SSYXYX— ities. The relay can be used LED indicates the status of ~~—~~ **Rated operational current** ~~is~~ for resis tive, inductive and the control input. The clip-on **Options** capacitive loads. The zero cover secures touch protecswitching relay switches ON tion  (IP 20). Protected output when the sinusoidal curve terminals can handle cables crosses zero and switches up to 16 mm[2] . OFF when the current cross- 

## **T e Selection yp** 

**Switching mode Rated operational Control voltage Rated operational Options voltage current** A: Zero Switching (ZC) 23: 230VACrms A: 20-280 VAC/22-48VDC 25: 25AACrms Z: Overvoltage B: Instant-on switching       60: 600VACrms D: 3 - 32VDC* 50: 50AACrms protection (self(IO)         69: 690VACrms 75: 75AACrms switching) * 4 to 32VDC for RAM1A60..., RAM1A69... 100: 100AACrms * 4 to 32VDC for RAM1B types 125: 125AACrms 

## **Selection Guide - Zero cross switchin g** 

|**Rated**|**Blocking**|**Control**|**Rated op er a tion al current**||||
|---|---|---|---|---|---|---|
|**operational**|**voltage**|**voltage**|**25A**<br>**50A**|**75A**|**100A**|**125A**|
|**voltage**|||||||
|230VACrms|650Vp|3 - 32VDC|RAM1A23D25 RAM1A23D50 RAM1A23D75 RAM1A23D100 RAM1A23D125|RAM1A23D25 RAM1A23D50 RAM1A23D75 RAM1A23D100 RAM1A23D125|RAM1A23D25 RAM1A23D50 RAM1A23D75 RAM1A23D100 RAM1A23D125|RAM1A23D25 RAM1A23D50 RAM1A23D75 RAM1A23D100 RAM1A23D125|
|||20-280VAC/22-48VDC|RAM1A23A25 RAM1A23A50|RAM1A23A75|RAM1A23A100|RAM1A23A125|
|600VACrms|1200Vp|4 - 32VDC|RAM1A60D25 RAM1A60D50 RAM1A60D75 RAM1A60D100 RAM1A60D125|RAM1A60D25 RAM1A60D50 RAM1A60D75 RAM1A60D100 RAM1A60D125|RAM1A60D25 RAM1A60D50 RAM1A60D75 RAM1A60D100 RAM1A60D125|RAM1A60D25 RAM1A60D50 RAM1A60D75 RAM1A60D100 RAM1A60D125|
|||20-280VAC/22-48VDC|RAM1A60A25 RAM1A60A50|RAM1A60A75|RAM1A60A100|RAM1A60A125|
|690VACrms|1600Vp|4-32VDC|-<br>-|RAM1A69D75 RAM1A69D100 RAM1A69D125|RAM1A69D75 RAM1A69D100 RAM1A69D125|RAM1A69D75 RAM1A69D100 RAM1A69D125|
|||20-280VAC/ 22-48VDC|-<br>-|RAM1A69A75|RAM1A69A100|RAM1A69A125|



## **Options** 

**1** Overvoltage protection by self-switching: add suffix Z to include. Example: RAM1A60D25Z. Not applicable for 690 V version. 

**1** 

Specifications are subject to change without notice (10.01.2022) 

**RAM1A, RAM1B** 

## **Selection Guide - Instant on (Random) switching** 

|**Rated**|**Blocking**|**Control**|**Rated op er a tion al current**||||
|---|---|---|---|---|---|---|
|**operational**|**voltage**|**voltage**|**25A**<br>**50A**|**75A**|**100A**|**125A**|
|**voltage**|||||||
|230VACrms   650V|230VACrms   650Vp|4 - 32VDC|RAM1B23D25 RAM1B23D50 RAM1B23D75 RAM1B23D100 RAM1B23D125|RAM1B23D25 RAM1B23D50 RAM1B23D75 RAM1B23D100 RAM1B23D125|RAM1B23D25 RAM1B23D50 RAM1B23D75 RAM1B23D100 RAM1B23D125|RAM1B23D25 RAM1B23D50 RAM1B23D75 RAM1B23D100 RAM1B23D125|
|600VACrms 1200V|600VACrms 1200Vp|4 - 32VDC|RAM1B60D25 RAM1B60D50 RAM1B60D75 RAM1B60D100 RAM1B60D125|RAM1B60D25 RAM1B60D50 RAM1B60D75 RAM1B60D100 RAM1B60D125|RAM1B60D25 RAM1B60D50 RAM1B60D75 RAM1B60D100 RAM1B60D125|RAM1B60D25 RAM1B60D50 RAM1B60D75 RAM1B60D100 RAM1B60D125|
|||20-280VAC/22-48VDC|-<br>-|-|-|RAM1B60A125|



## **General S ec i fi ca tions p** 

||**RAM1.23..**||**RAM1.60..**||**RAM1.69..**|
|---|---|---|---|---|---|
|Operational voltage range||||||
|RAM1A...|24 to 265 VACrms||42 to 660 VACrms||42 to 760 VACrms|
|RAM1B...|42 to 265 VACrms||42 to 660 VACrms||42 to 760 VACrms|
|Blockingvoltage|≥ 650 Vp||≥ 1200 Vp||≥ 1600 Vp|
|Zero voltage turn-on|≤ 10 V||≤ 10 V||≤ 10 V|
|Operational frequencyrange|45 to 65 Hz||45 to 65 Hz||45 to 65 Hz|
|Power factor|> 0.5 @ 230 VACrms||> 0.5 @ 600 VACrms||> 0.5 @ 690 VACrms|
|Approvals|UR, cUR, CSA, VDE*, CCC, EAC||UR, cUR, CSA, VDE*, CCC, EAC||CCC,EAC|
|CE-marking|Yes||Yes**||Yes**|
|UKCA marking|Yes||Yes**||Yes**|
|Isolation||||||
|Input to Output|4000 Vrms||4000 Vrms||4000 Vrms|
|Input and Output to case|4000 Vrms||4000 Vrms||4000 Vrms|



* VDE0660-109 

** Heatsink must be conected to ground 

## **In ut S ecifications p p** 

||**RAM1...D..**||**RAM1...A..**|
|---|---|---|---|
|Control voltage range||||
|RAM1A23...|3-32 VDC||20-280 VAC, 22-48 VDC|
|RAM1A60..., RAM1A69...|4-32 VDC||20-280 VAC, 22-48 VDC|
|RAM1B...|4-32 VDC||20-280 VAC,22-48 VDC|
|Pick-up voltage @ Ta = 25˚C||||
|RAM1A23...|2.5 VDC||18 VAC/DC|
|RAM1A60..., RAM1A69...|3.5 VDC||18 VAC/DC|
|RAM1B...|3.5 VDC||18 VAC/DC|
|Reverse voltage|32 VDC||-|
|Dropout voltage|1.2 VDC||6 VAC/DC|
|Input current @ max input voltage||||
|RAM1A|≤ 12 mA||≤ 20 mA|
|RAM1B|≤ 15 mA||≤ 20 mA|
|Response time pick-up||||
|RAM1A|≤ 1/2 cycle||≤ 12 ms|
|RAM1B|≤ 0.1 ms||≤ 12 ms|
|Response time drop-out||||
|RAM1A|≤ 1/2cycle||≤ 40 ms|
|RAM1B|≤ 1/2cycle||≤ 40 ms|



**2** 

Specifications are subject to change without notice (10.01.2022) 

**RAM1A, RAM1B** 

## **Out ut S ecifications p p** 

||**RAM1...25**||**RAM1...50**||**RAM1...75**||**RAM1...100**||**RAM1...125**|
|---|---|---|---|---|---|---|---|---|---|
|Rated operational current||||||||||
|AC51 @ Ta=25°C|25Arms||50Arms||75Arms||100Arms||125Arms|
|AC53a @ Ta=25°C|5Arms||15Arms||17Arms||20Arms||30Arms|
|Min. operational current|150mA||250mA||400mA||400mA||500mA|
|Rep. overload current t=1 s|< 55AACrms||< 125AACrms||< 130 AACrms||< 150 AACrms||< 200AACrms|
|Non-rep. surge current t=10 ms|325Ap||600Ap||800Ap||1150Ap||1900Ap|
|Off-state leakage current @||||||||||
|rated voltage and frequency|< 3mArms||< 3mArms||< 3mArms||< 3mArms||< 3mArms|
|I2t for fusingt= 10 ms|< 525A2s||< 1800A2s||< 3200A2s||< 6600A2s||<18000A2s|
|Critical dV/dt off-state min.|1000V/µs||1000V/µs||1000V/µs||1000V/µs||1000V/µs|
|Endurance testing acc. to UL 508|100,000 cycles||100,000 cycles||100,000 cycles||100,000 cycles||6,000 cycles|



Note: UL requirement for General Use Endurance Testing is 6,000 cycles 

## **Motor Ratings*: HP (UL508)** 

||**230VAC**||**400VAC**||**480VAC**||**600VAC**|
|---|---|---|---|---|---|---|---|
|**RAM1..25**|1.5HP||3HP||3HP||5HP|
|**RAM1..50**|3HP||5HP||7.5HP||10HP|
|**RAM1..75**|5HP||7.5HP||10HP||15HP|
|**RAM1..100**|7.5HP||15HP||20HP||25HP|
|**RAM1..125**|10HP||15HP||25HP||30HP|



*  with suitable heatsink 

## **Out ut Power Dissi ation p p** 

**==> picture [485 x 268] intentionally omitted <==**

**----- Start of picture text -----**<br>
140<br>RAM..125<br>120<br>RAM..100<br>100<br>RAM..75<br>80<br>60 RAM..50<br>40<br>RAM..25<br>20<br>0<br>0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125<br>Load current per pole in AACrms<br>**----- End of picture text -----**<br>


**3** 

Specifications are subject to change without notice (10.01.2022) 

**RAM1A, RAM1B** 

## **Electroma netic Com atibilit g p y** 

|**Immunity**|EN60947-4-3|**Radiated Radio Frequency**||
|---|---|---|---|
|**Electrostatic Discharge (ESD)**<br>**Immunity**<br>Air discharge, 8kV<br>Contact, 4kV|IEC/EN 61000-4-2<br>Performance Criteria 2<br>Performance Criteria 2|**Immunity**<br>10V/m, 80 - 1000 MHz<br>10V/m, 1.4 - 2.0GHz<br>3 V/m, 2.0 - 2.7GHz<br>**Conducted Radio Frequency**|IEC/EN 61000-4-3<br>Performance Criteria 1<br>Performance Criteria 1<br>Performance Criteria 1|
|**Electrical Fast Transient**||**Immunity**|IEC/EN 61000-4-6|
|**(Burst) Immunity**|IEC/EN 61000-4-4|10V/m, 0.15 - 80 MHz|Performance Criteria 1|
|Output: 2kV, 5kHz|Performance Criteria 1|**Voltage Dips Immunity**|IEC/EN 61000-4-11|
|Input: 1kV, 5kHz<br>**Electrical Surge Immunity**|Performance Criteria 1<br>IEC/EN 61000-4-5|0% for 0.5, 1 cycle<br>40% for 10 cycles<br>70% for 25 cycles|Performance Criteria 2<br>Performance Criteria 2<br>Performance Criteria 2|
|Output, line to line, 1kV|Performance Criteria 2|80% for 250 cycles|Performance Criteria 2|
|Output, line to earth, 1kV|Performance Criteria 2|**Voltage Interruptions Immunity**|IEC/EN 61000-4-11|
|Output, line to earth, 2kV|Performance Criteria 2|0% for 5000ms|Performance Criteria 2|
||with external varistor|||
|Input, line to line, 1kV|Performance Criteria 2|||
|Input, line to earth, 2kV|Performance Criteria 2|||
|||||
|**EMC Emission**<br>EN60947-4-3<br>**Radio Interference**<br>**Voltage Emission (Conducted)**<br>IEC/EN 55011<br>**0.15 - 30MHz**<br>Class A (industrial) with filters<br>~~|~~||**Radio Interference**<br>**Field Emission (Radiated)**<br>**30 - 1000MHz**|IEC/EN 55011<br>Class B|



Notes: - Use of AC solid state relays may, according to the application and the load current, cause conducted radio interferences. Use of mains filters may be necessary for cases where the user must meet E.M.C requirements. The capacitor values given inside the filtering specification tables should be taken only as indications, the filter attenuation will depend on the final application. 

- The control terminals shall be supplied by a power limited (short-circuit rating limit <1500VA)secondary circuit, if not then additional suppression may be required. 

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

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

- Performance Criteria 2: 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: Temporary loss of function is allowed, provided the function can be restored by manual operation of the controls. 

**4** 

Specifications are subject to change without notice (10.01.2022) 

**RAM1A, RAM1B** 

## **Housin S ecifications g p** 

|**Weight**||**Relay**||
|---|---|---|---|
|25A, 50A|Approx. 60g|Mounting screws|M5|
|75A,100A,125A|Approx. 100g|Mountingtorque|1.5-2.0Nm|
|**Housing material**|Noryl,black|||
|**Baseplate**||||
|25A, 50A|Aluminium|||
|75A, 100A, 125A|Copper, nickel-plated|||



## **Connection S ecifications p** 

**Connection terminals L1, T1 A1, A2** 

|**Connection terminals**||||**L1, T1**<br>~~a~~||**A1, A2**<br>est HES||
|---|---|---|---|---|---|---|---|
|Strippinglength(X)||||12 mm||8 mm||
|Connection Type||||~~M~~5 screw with~~cap~~tivated washer||M3 screw with captivated washer||
|Rigid (solid & stranded)|||X|||||
|UR rated data||||1x   2.5 - 6.0 mm²|2x  2.5 - 6.0 mm²|1x  0.5 - 2.5 mm²|2x  0.5 - 2.5 mm²|
|||||1x  14 - 10 AWG|2x  14 - 10 AWG|1x  1~~8 - 1~~2 AWG|2x  18 - 12 AWG|
|Flexible with end sleeve|||||2x  1.0 - 2.5 mm²|||
||LB|||~~1x  1~~.~~0 - 4.0~~mm²<br>1x  18 - 12 AWG|2x  2.5 - 4.0 mm²<br>2x  18 - 14 AWG|1x  0.5 - 2.5 mm²<br>1x  18 - 12 AWG|2x  0.5 - 2.5 mm²<br>2x  18 - 12 AWG|
||||||2x  14 - 12 AWG|||
|Flexible without end sleeve|||||2x  1.0 - 2.5 mm²|||
||Sy|||1x  1.0 - 6.0 mm²<br>1x  18 - 10 AWG|2x  2.5 - 6.0 mm²<br>2x  18 - 14 AWG|||
||||||2~~x  1~~4 - 10 AWG|||
|Torque specification<br>Aperture for termination lug<br>~~a~~||||Pozidrive 2<br>2.4 Nm(21.2 lb-in)<br>12 mm||Pozidrive 1<br>0.5 Nm(4.4 lb-in)<br>7.5 mm||



**5** 

Specifications are subject to change without notice (10.01.2022) 

**RAM1A, RAM1B** 

**==> picture [452 x 231] intentionally omitted <==**

**----- Start of picture text -----**<br>
Functional Diagramgram Dimensions<br>f a<br>A1(+~) REGULATION T1<br>* ZC<br>IO<br>A2(-~) L1<br>LED APPLY<br>HEATSINK<br>COMPOUND<br>* Varistor across input applies to AC control versions only. All dimensions in mm.<br>**----- End of picture text -----**<br>


## **ram Functional Diagramgram** 

## **Connection Dia ram g** 

**==> picture [389 x 187] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||
|---|---|
|L1|
|L2/N|
|*|
|LOAD|
|it|f|
|og|
|cow|
|(   )~-|(   )~+|
|* Depends on system requirements|Control Input|

**----- End of picture text -----**<br>


**6** 

Specifications are subject to change without notice (10.01.2022) 

**RAM1A, RAM1B** 

## **Heatsink Dimensions (load current versus ambient temperature)** 

|**RAM..25**|**RAM..25**|||||||||**RAM..50**|**RAM..50**|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Load|||Thermal resistance|||||||Load|||Thermal resistance|||||||
|current[A]|||[°C/W]|||||||current[A]|||[°C/W]|||||||
|||||||||||||||||||||
|25.0|3.23|2.80|2.37|1.94||1.51|1.09|0.66||50.0|1.25|1.07|0.88|0.70||0.52|0.34|0.16||
|22.5|3.70|3.21|2.73|2.24||1.75|1.26|0.78||45.0|1.46|1.25|1.04|0.84||0.63|0.42|0.21||
|20.0|4.30|3.74|3.17|2.61||2.05|1.49|0.92||40.0|1.73|1.49|1.25|1.01||0.77|0.52|0.28||
|17.5|5.07|4.41|3.76|3.10||2.44|1.78|1.12||35.0|2.08|1.80|1.51|1.23||0.94|0.66|0.37||
|15.0|6.12|5.33|4.54|3.75||2.96|2.17|1.38||30.0|2.56|2.22|1.87|1.53||1.18|0.84|0.49||
|12.5|7.58|6.61|5.64|4.66||3.69|2.72|1.75||25.0|3.24|2.81|2.38|1.95||1.52|1.09|0.66||
|10.0|9.80|8.55|7.30|6.05||4.80|3.55|2.30||20.0|4.26|3.71|3.15|2.59||2.03|1.47|0.92||
|7.5|13.5|11.80|10.09|8.37||6.66|4.94|3.23||15.0|5.99|5.22|4.45|3.67||2.90|2.12|1.35||
|5.0|-|18.3|15.7|13.04||10.39|7.74|5.09||10.0|9.49|8.27|7.06|5.85||4.64|3.43|2.22||
|2.5|-|-|-|-||-|16.2|10.7||5.0|-|17.5|15.0|12.4||9.91|7.39|4.86||
||20|30|40|50||60|70|80|TA||20|30|40|50||60|70|80|TA|
||||||||Ambient temp. [°C]|Ambient temp. [°C]|||||||||Ambient temp. [°C]|Ambient temp. [°C]||



Junction to ambient thermal resistance, Rth j-a  < 20.0  °C/W Junction to ambient thermal resistance, Rth j-a  < 20.0  °C/W Junction to case thermal resistance, Rth j-c < 0.80 °C/W Junction to case thermal resistance, Rth j-c < 0.50 °C/W Case to heatsink thermal resistance, Rth c-s < 0.20 °C/W Case to heatsink thermal resistance, Rth c-s < 0.20 °C/W Maximum allowable case temperature 100 °C Maximum allowable case temperature 100 °C ~~——=2~~ Maximum allowable junction temperature 125 °C Maximum allowable junction temperature 125 °C 

## **RAM..75** 

|**RAM..75**||||**RAM..100**|||||
|---|---|---|---|---|---|---|---|---|
|Load|Thermal resistance|||Load|Thermal resistance||||
|current[A]|[°C/W]|||current[A]|[°C/W]||||
||||||||||
|75.0<br>0.94<br>0.82|0.70<br>0.58<br>0.47|0.35<br>0.23||100.0<br>0.60|0.52<br>0.43<br>0.34<br>0.26|0.17||0.09|
|67.5<br>1.10<br>0.96|0.82<br>0.69<br>0.55|0.41<br>0.27||90.0<br>0.74|0.64<br>0.54<br>0.44<br>0.34|0.24||0.14|
|60.0<br>1.30<br>1.14|0.98<br>0.81<br>0.65|0.49<br>0.33||80.0<br>0.91|0.79<br>0.68<br>0.56<br>0.45|0.33||0.22|
|52.5<br>1.57<br>1.38|1.18<br>0.98<br>0.79|0.59<br>0.39||70.0<br>1.09|0.96<br>0.82<br>0.68<br>0.55|0.41||0.27|
|45.0<br>1.95<br>1.70|1.46<br>1.22<br>0.97|0.73<br>0.49||60.0<br>1.33|1.16<br>1.00<br>0.83<br>0.66|0.50||0.33|
|37.5<br>2.48<br>2.17|1.86<br>1.55<br>1.24|0.93<br>0.62||50.0<br>1.66|1.45<br>1.24<br>1.04<br>0.83|0.62||0.41|
|30.0<br>3.32<br>2.90|2.49<br>2.07<br>1.66|1.24<br>0.83||40.0<br>2.16|1.89<br>1.62<br>1.35<br>1.08|0.81||0.54|
|22.5<br>4.75<br>4.15|3.56<br>2.97<br>2.37|1.78<br>1.19||30.0<br>3.01|2.64<br>2.26<br>1.88<br>1.51|1.13||0.75|
|15.0<br>7.68<br>6.72|5.76<br>4.80<br>3.84|2.88<br>1.92||20.0<br>4.73|4.14<br>3.55<br>2.96<br>2.37|1.78||1.18|
|7.5<br>-<br>14.59|12.50<br>10.42<br>8.34|6.25<br>4.17||10.0<br>9.94|8.70<br>7.45<br>6.21<br>4.97|3.73||2.48|
|20<br>30|40<br>50<br>60|TA<br>70<br>80||20|30<br>40<br>50<br>60|70||TA<br>80|
|||Ambient temp. [°C]|Ambient temp. [°C]|||Ambient temp. [°C]||Ambient temp. [°C]|
|Junction to ambient thermal resistance,Rth j-a< 20.0  °C/W<br>Junction to case thermal resistance,Rth j-c<br>< 0.35 °C/W<br>Case to heatsink thermal resistance,Rth c-s<br>< 0.10 °C/W<br>Maximum allowable heatsink temperature<br>100<br>°C<br>Maximum allowable junction temperature<br>125<br>°C<br>Junction to ambient thermal resistance,Rth j-a< 20.0  °C/W<br>Junction to case thermal resistance,Rth j-c<br>< 0.35 °C/W<br>Case to heatsink thermal resistance,Rth c-s<br>< 0.10 °C/W<br>Maximum allowable heatsink temperature<br>100<br>°C<br>Maximum allowable junction temperature<br>125<br>°C<br>~~ee~~|||||||||
|Note:The thermal resistance values, Rth c-s, indicated in the tables above are applicable if a fine layer of thermal paste, HTS02S, is applied between heatsink|||The thermal resistance values, Rth c-s, indicated in the tables above are applicable if a fine layer of thermal paste, HTS02S, is applied between heatsink||||||
|and SSR.|||||||||



**7** 

Specifications are subject to change without notice (10.01.2022) 

**RAM1A, RAM1B** 

## **Heatsink Dimensions (cont.)** 

**RAM..125** 

**==> picture [239 x 283] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||||||||
|---|---|---|---|---|---|---|---|
|Load|Thermal resistance|
|current [A]|[°C/W]|
|125.0|0.63|0.55|0.47|0.40|0.32|0.24|0.16|
|||||||||||fT|ff|
|112.5|0.73|0.64|0.54|0.45|0.36|0.27|0.18|
|po|||||||||||
|100.0|0.84|0.74|0.63|0.53|0.42|0.32|0.21|
||||||||||ff|
|87.5|0.99|0.87|0.74|0.62|0.50|0.37|0.25|
||||||||||ff|
|75.0|1.20|1.05|0.90|0.75|0.60|0.45|0.30|
|po|||||||||||
|62.5|1.48|1.30|1.11|0.93|0.74|0.56|0.37|
|po|||||||||||
|50.0|1.92|1.68|1.44|1.20|0.96|0.72|0.48|
|||||||||||fT|ft|
|37.5|2.65|2.32|1.98|1.65|1.32|0.99|0.66|
|po|||||||||||
|25.0|4.12|3.60|3.09|2.57|2.06|1.54|1.03|
|po|||||||||||
|12.5|8.55|7.48|6.41|5.34|4.27|3.21|2.14|
|||||||||tT|TA|
|20|30|40|50|60|70|80|
|Ambient temp. [°C]|
|Junction to ambient thermal resistance, Rth j-a  < 20.0  °C/W|
|Junction to case thermal resistance, Rth j-c|< 0.30 °C/W|
|Case to heatsink thermal resistance, Rth c-s|< 0.10 °C/W|
|Maximum allowable heatsink temperature|100|°C|
|Maximum allowable junction temperature|125|°C|

**----- End of picture text -----**<br>


## **Thermal S ecifications p** 

**==> picture [243 x 35] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||
|---|---|---|
|Operating temperature|-40° to +80°C (-40˚ to +176˚F)|
|Storage temperature|-40° to +100°C (-40˚ to +212˚F)|
|Junction temperature|≤ 125˚C (257˚F|)|

**----- End of picture text -----**<br>


## **Heatsink Selection** 

**==> picture [93 x 15] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||
|---|---|
|Orderin|Ke|
|g|y|

**----- End of picture text -----**<br>


## **RHS..** 

- Heatsinks and fans 

- 5.40[o] C/W to 0.12[o] C/W thermal resistance 

- DIN, panel or thru wall mounting 

- Single or multiple SSR mounting 

Heatsink Range Overview: http://cga.pub/?39eb59 

Heatsink Selector Tool: https://gavazziautomation.com/nsc/HQ/EN/solid_state_relays 

**8** 

Specifications are subject to change without notice (10.01.2022) 

**RAM1A, RAM1B** 

## **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 co-ordination 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 65,000A rms Symmetrical Amperes, 600Volts maximum when protected by fuses. Tests at 65,000A were performed with Class J, fast acting: please refer to the table below for maximum allowed ampere rating of the fuse. Use fuses only. 

## **Co-ordination Type 1 (UL508)** 

|**Part No.**|**Prospective short**|**Max. fuse**|**Class**|**Voltage [VAC]**|
|---|---|---|---|---|
||**circuit current [kArms]**|**size [A]**|||
|RAM1..25..|65|30|J / CC|600|
|RAM1..50..|65|30|J|600|
|||20|HSJ20(Mersen*)|600|
|RAM1..75..|65|100|J|600|
|RAM1..100..|65|80|J|600|
|||60|HSJ60(Mersen*)|600|
|RAM1..125..|65|125|J|600|
|||60|HSJ60 (Mersen*)|600|



## **Co-ordination Type 2 (IEC/EN60947-4-3)** 

|**Part No.**|**Prospective short**|**Max. fuse**|**Brand**|**Model**|**Size**|
|---|---|---|---|---|---|
||**circuit current [kArms]**|**size [A]**||||
|RAM1.23..25..|10|25|Mersen*|6.9gRB 10-25|10.3 x 38|
|RAM1.60..25..|10|20|Mersen*|6.9gRB 10-20|10.3 x 38|
|RAM1.23..50..|10|50|Mersen*|6.9zz CPgRC 14x51/50|14 x 51|
|RAM1.60..50..|10|50|Mersen*|6.9zz CPgRC 22x58/50|22 x 58|
|RAM1.xx.75..(xx = 23 or 60)|10|63|Mersen*|6.9zz CPgRC 22x58/63|22 x 58|
|RAM1.23.100..|10|100|Mersen*|6.9zz CPgRC 22x58/100|22 x 58|
|RAM1.60.100..|10|80|Mersen*|6.9zz CPgRC 22x58/80|22 x 58|
|RAM1.xx.125.. (xx = 23 or 60)|10|125|Mersen*|6.921 CP URGD 27x60/125|27 x 60|



zz = 00, without fuse trip indication 

zz = 21, with fuse trip indication 

* Formerly Ferraz Shawmut 

**9** 

Specifications are subject to change without notice (10.01.2022) 

## **RAM1A, RAM1B** 

## **Type 2 Protection with Miniature Circuit Breakers (M.C.B.s)** 

|**Solid State Relay**|**ABB Model no. for**|**ABB Model no. for**|**Wire cross**|**Minimum length of**|
|---|---|---|---|---|
|**type**|**Z - type M. C. B.**|**B - type M. C. B.**|**sectional area [mm2] **|**Cu wire conductor [m]***|
||**(rated current)**|**(rated current)**|||
|**RAM..25..**|**1-pole**||||
||S201-Z4 (4A)|S201-B2 (2A)|1.0|21.0|
||S201-Z6 UC (6A)|S201-B2 (2A)|1.0|21.0|
||||1.5|31.5|
|**RAM..50..**|**1-pole**||||
||S201-Z10 (10A)|S201-B4 (4A)|1.0|7.6|
||||1.5|11.4|
||||2.5|19.0|
||S201-Z16 (16A)|S201-B6 (6A)|1.0|5.2|
||||1.5|7.8|
||||2.5|13.0|
||||4.0|20.8|
||S201-Z20 (20A)|S201-B10 (10A)|1.5|12.6|
||||2.5|21.0|
||S201-Z25 (25A)|S201-B13 (13A)|2.5|25.0|
||||4.0|40.0|
||2-poles||||
||S202-Z25 (25A)|S202-B13 (13A)|2.5|19.0|
||||4.0|30.4|
|**RAM..75..**|**1-pole**||||
|**RAM..100..**|||||
||S201-Z20 (20A)|S201-B10 (10A)|1.5|4.2|
||||2.5|7.0|
||||4.0|11.2|
||S201-Z32 (32A)|S201-B16 (16A)|2.5|13.0|
||||4.0|20.8|
||||6.0|31.2|
||**2-poles**||||
||S202-Z20 (20A)|S202-B10 (10A)|1.5|1.8|
||||2.5|3.0|
||||4.0|4.8|
||S202-Z32 (32A)|S202-B16 (16A)|2.5|5.0|
||||4.0|8.0|
||||6.0|12.0|
||||10.0|20.0|
||S202-Z50 (50A)|S202-B25 (25A)|4.0|14.8|
||||6.0|22.2|
||||10.0|37.0|
|**RAM..125..**|1-pole||||
||S201-Z50 (50A)|S201-B25 (25A)|4.0|4.8|
||||6.0|7.2|
||||10.0|12.0|
||||16.0|19.2|
||S201-Z63 (63A)|S201-B32 (32A)|6.0|7.2|
||||10.0|12.0|
||||16.0|19.2|



*  Between MCB and Load (including return path which goes back to the mains). Note: A prospective current of 6kA and a 230/400V power supply system 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. 

**10** 

Specifications are subject to change without notice (10.01.2022) 

**RAM1A, RAM1B** 

## **Environmental Information** 

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. Part Name Toxic or Harardous Substances and Elements Lead Mercury Cadmium Hexavalent Polybrominated Polybrominated (Pb) (Hg) (Cd) Chromium biphenyls (PBB) diphenyl ethers (Cr(Vl)) (PBDE) Power Unit Assembly x O O O O O O: Indicates that said hazardous substance contained in homogeneous materials fot this part are below the limit requirement of GB/T 26572. X: Indicates that said hazardous substance contained in one of the homogeneous materials used for this part is above the limit requirement of GB/T 26572. **环境特性** 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 铅 汞 镉 六价铬 多溴化联苯 多溴联苯醚 (Pb) (Hg) (Cd) (Cr(Vl)) (PBB) (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。 ~~[a]~~ X: 此零件某种材料中含有的该有害物高于GB/T 26572的限定。 ~~an~~ 25 re) 

**11** 

Specifications are subject to change without notice (10.01.2022) 

**RAM1A, RAM1B** 

## **FASTON Terminals** 

- Faston tabs 

- Tab dimensions according to DIN 46342 part 1 

- Pure tin-plated brass 

## **Orderin Ke g y** 

**Screw mounted Faston terminals RAM1A60D25  F 4** RAM Solid State Relay Faston terminals Tab orientation ~~__=~~ Input Tab width: 4.8mm Output Tab width: 6.3mm 

**Faston terminals in packs of 20 RM48      F4** RS, RM Solid State Relay Tab orientation ~~_FT~~ 

**RM48      F4** 

- 0: Flat (0º) 4: Angled (45º) 

- ** 48: 4.8mm faston for input 

- 63: 6.3mm faston for output 

**==> picture [106 x 12] intentionally omitted <==**

**----- Start of picture text -----**<br>
Fork Terminals<br>**----- End of picture text -----**<br>


## **Other Accessories** 

- Terminal adaptors for 35mm[2] cable **Ordering Key RM635FK     P** • Type RM635FK RM terminal adaptor 

- •  Pack size: 10 pieces Touch protected (optional) ~~OO~~ 

- • Graphite thermal pad • Touch safety cover with adhesive on one • Type RMIP20 side • IP20 protection degree 

- Graphite thermal pad with adhesive on one side 

   - Pack size: 20 pieces 

- Type KK071CUT 

- Dimensions: 35 x 43 x 0.25mm 

- Packing quantity: 50pcs. 

All accessories can be ordered pre-assembled with Solid State Relays. Other accessories include DIN rail adaptors, fuses, varistors and spacers. 

For futher information refer to Accessories datasheets at: http://cga.pub/?39eb59 

**12** 

Specifications are subject to change without notice (10.01.2022) 



## Links

- [View this product on Novapart](https://novapart.co/products/RAM1A60D50/solid-state-relay-600vac-50a-panel)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/carlo-gavazzi/ram1a60d50/solid-state-relay-600vac-50a-panel/dp/3884149)
---

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