RM1A40D50
Solid State Relay, SPST-NO, 50 A, 440 VAC, Panel Mount, Screw, Zero Crossing
- Manufacturer: CARLO GAVAZZI
- Product type:
- SVHC: No SVHC (21-Jan-2025)
- Load Current: 50A
- Product Range: RM1A 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: 440VAC
- Operating Voltage Min: 42VAC
| Delivery and price | |
|---|---|
| Units per pack | 10 |
| Price | 81.92 € |
| Current stock | 10+ |
| Lead time | 30 days |
## **RM1A, RM1BSolid State Relays Industrial, 1-Phase ZS (IO) w. LED and Built-in Varistor Types RM 23, RM 40, RM 48, RM 60**
- **Zero switching (RM1A) or instant-on switching (RM1B) AC Solid State Relay**
- **Direct copper bonding (DCB) technology**
- **LED indication**
- **Built-in varistor**
- **Clip-on IP 20 protection cover**
- **Self-lifting terminals**
- **Housing free of moulding mass**
- **2 input ranges: 3-32* VDC and 20-280VAC/22-48VDC**
## **Product De scri tion p**
The instant-on relay with DC control input can be used for phase control. The builtin varistor secures transient protection for the heavy industrial applications, and the LED indicates the status of the control input. The clip-on cover is securing touch protection to IP 20. Protected output terminals can handle cables up to 16mm[2] .
The industrial, 1-phase relay with antiparallel thyristor output is the most widely used indus trial SSR due to its multiple application possibilities. The relay can be used for resis tive, inductive and capacitive loads. The zero switching relay switches ON when the sinusoidal curve crosses zero and switches OFF when the current crosses zero.
## **• Operational ratings: Up to 100AACrms and 600VACrms • Blocking voltage: Up to 1400Vp • Opto-isolation: > 4000VACrms** s CEAL E © TALES **Orderin Ke g y RM 1 A 23 D 25**
- **Operational ratings: Up to 100AACrms and 600VACrms**
**Solid State Relay Number of poles Switching mode Rated operational voltage Control voltage Rated operational current**
## **T e Selection yp**
|**Type Selection**||||
|---|---|---|---|
|S**witching mode**|**Rated operational**|**Control voltage**|**Rated operational**|
||**voltage**||**current**|
|A: Zero Switching (ZC)|23: 230VACrms|A: 20-280VAC / 22-48VDC|25: 25AACrms|
|B: Instant-on switching (IO)|40: 400VACrms|D: 3-32VDC*|50: 50AACrms|
||48: 480VACrms|*4 to 32VDC for 400, 480 and 600VAC types|75: 75AACrms|
||60: 600VACrms|*4 to 32VDC for RM1B types|100: 100AACrms|
## **Selection Guide**
|**Rated opera-**|**Blocking Control**|**Blocking Control**|**Rated op er a tion al current with suitable heatsink**|**Rated op er a tion al current with suitable heatsink**|**Rated op er a tion al current with suitable heatsink**||
|---|---|---|---|---|---|---|
|**tional voltage,**|**voltage**|**voltage**|**25A**|**50A**|**75A**|**100A**|
|**Switching mode**|||||||
|230VACrms,|650Vp|3 - 32VDC|**RM1A23D25**|**RM1A23D50**|**RM1A23D75**|**RM1A23D100**|
|ZC||20 to 280VAC|**RM1A23A25**|**RM1A23A50**|**RM1A23A75**|**RM1A23A100**|
|||22 to 48VDC|||||
|400VACrms,|800Vp|4 - 32VDC|**RM1A40D25**|**RM1A40D50**|**RM1A40D75**|**RM1A40D100**|
|ZC||20 to 280VAC|**RM1A40A25**|**RM1A40A50**|**RM1A40A75**|**RM1A40A100**|
|||22 to 48VDC|||||
|480VACrms,|1200Vp|4 - 32VDC|**RM1A48D25**|**RM1A48D50**|**RM1A48D75**|**RM1A48D100**|
|ZC||20 to 280 VAC|**RM1A48A25**|**RM1A48A50**|**RM1A48A75**|**RM1A48A100**|
|||22 to 48VDC|||||
|600VACrms,|1400Vp|4 - 32VDC|**RM1A60D25**|**RM1A60D50**|**RM1A60D75**|**RM1A60D100**|
|ZC||20 to 280VAC|**RM1A60A25**|**RM1A60A50**|**RM1A60A75**|**RM1A60A100**|
|||22 to 48VDC|||||
**1**
Specifications are subject to change without notice (31.01.2023)
**RM1A, RM1B**
## **Selection Guide**
|**Rated opera-**|**Blocking Control**|**Blocking Control**|**Rated op er a tion al current with suitable heatsink**|**Rated op er a tion al current with suitable heatsink**|**Rated op er a tion al current with suitable heatsink**||
|---|---|---|---|---|---|---|
|**tional voltage,**|**voltage**|**voltage**|**25A**|**50A**|**75A**|**100A**|
|**Switching mode**|||||||
|230VACrms, IO 650V|230VACrms, IO 650Vp|4 - 32VDC|**RM1B23D25**|**RM1B23D50**|**RM1B23D75**|**RM1B23D100**|
|||20 - 280VAC/|**RM1B23A25**|**RM1B23A50**|**RM1B23A75**|**RM1B23A100**|
|||22 - 48VDC|||||
|400VACrms,IO 800V|IO 800Vp|4 - 32VDC|**RM1B40D25**|**RM1B40D50**|**RM1B40D75**|**RM1B40D100**|
|480VACrms, IO 1200V|480VACrms, IO 1200Vp|4 - 32VDC|**RM1B48D25**|**RM1B48D50**|**RM1B48D75**|**RM1B48D100**|
|600VACrms, IO 1400V|600VACrms, IO 1400Vp|4-32VDC|**RM1B60D25**|**RM1B60D50**|**RM1B60D75**|**RM1B60D100**|
|||20 - 280VAC/|**RM1B60A25**|**RM1B60A50**|**RM1B60A75**|**RM1B60A100**|
|||22 - 48VDC|||||
Note: For AC control, IO switching part numbers will be created on request
## **General S ec i fi ca tions p**
||**RM1.23...**||**RM1.40...**||**RM1.48...**||**RM1.60...**|
|---|---|---|---|---|---|---|---|
|**Operational voltage range**||||||||
|RM1A...|24 to 265VACrms||42 to 440VACrms||42 to 530VACrms||42 to 660VACrms|
|RM1B...|42 to 265VACrms||42 to 440VACrms||42 to 530VACrms||42 to 660VACrms|
|**Blocking voltage**|650Vp||800Vp||1200Vp||1400Vp|
|**Zero voltage turn-on**|≤ 10V||≤ 10V||≤ 10V||≤ 10V|
|**Operational frequency range**45 to 65Hz|45 to 65Hz||45 to 65Hz||45 to 65Hz||45 to 65Hz|
|**Power factor**|> 0.5 @ 230VACrms||> 0.5 @ 400VACrms|> 0.5 @ 400VACrms|> 0.5 @ 480VACrms||> 0.5 @ 600VACrms|
|**Approvals**|UR, cUR, CSA, CCC, EAC||UR, cUR, CSA, CCC, EAC||UR, cUR, CSA, CCC, EAC||UR, cUR, CSA, CCC, EAC|
|**CE-marking**|Yes||Yes||Yes||Yes *|
|**UKCA Marking**|Yes||Yes||Yes||Yes *|
|**Isolation**||||||||
|**Input to Output**|4000 Vrms||4000 Vrms||4000 Vrms||4000 Vrms|
|**input and Output to case**|4000 Vrms||4000 Vrms||4000 Vrms||4000 Vrms|
* Heatsink must be connected to ground
## **In ut S ecifications p p**
||**RM1...D..**||**RM1...A..**|
|---|---|---|---|
|**Control voltage range**||||
|RM1A23...|3 - 32VDC||20 - 280VAC, 22 - 48VDC|
|RM1A40... RM1A48... RM1A60...|4 - 32VDC||20 - 280VAC, 22 - 48VDC|
|RM1B...|4 - 32VDC||20 - 280VAC,22 - 48VDC|
|**Pick-up voltage @ Ta = 25˚C**||||
|RM1A23...|2.5VDC||18VAC/DC|
|RM1A40... RM1A48... RM1A60...|3.5VDC||18VAC/DC|
|RM1B ...|3.5VDC||18VAC/DC|
|**Reverse voltage**|32VDC||-|
|**Drop out voltage**|1.2VDC||6VAC/DC|
|**Input current @ max input voltage**||||
|RM1A|≤12 mA||≤ 20mA|
|RM1B|≤15 mA||≤ 20mA|
|**Response time pick-up**||||
|RM1A|≤1/2 cycle||≤ 12ms|
|RM1B|≤0.1ms||≤ 12ms|
|**Response time drop-out**||||
|RM1A|≤1/2 cycle||≤ 40ms|
|RM1B|≤1/2 cycle||≤ 40ms|
**2**
Specifications are subject to change without notice (31.01.2023)
**RM1A, RM1B**
## **Out ut S ecifications p p**
||**RM1....25**||**RM....50**||**RM1....75**||**RM1....100**|
|---|---|---|---|---|---|---|---|
|**Rated operational current**||||||||
|AC51 @ Ta=25°C|25Arms||50Arms||75Arms||100Arms|
|AC53a @ Ta=25°C|5Arms||15Arms||20Arms||30Arms|
|**Min. operational current**|150mA||250mA||400mA||500mA|
|**Rep. overload current t=1 s**|< 55AACrms||< 125AACrms||< 150AACrms||< 200AACrms|
|**Non-rep. surge current t=10 ms**|325Ap||600Ap||1150Ap||1900Ap|
|**Off-state leakage current @**||||||||
|**rated voltage and frequency**|< 3mArms||< 3mArms||< 3mArms||< 3mArms|
|**I2t for fusing t=10 ms**|< 525A2s||< 1800A2s||< 6600A2s||<18000A2s|
|**Critical dV/dt off-state min.**|1000V/µs||1000V/µs||1000V/µs||1000V/µs|
|**Endurance testing acc. to UL508**|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**|
|---|---|---|---|---|---|---|---|
|**RM1..25**|1.5HP||3HP||3HP||5HP|
|**RM1..50**|3HP||5HP||7.5HP||10HP|
|**RM1..75**|5HP||10HP||10HP||15HP|
|**RM1..100**|7.5HP||15HP||20HP||25HP|
* with suitable heatsink
## **Electroma netic Com atibilit g p y**
|**EMC 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<br>IEC/EN 61000-4-6|
|**Electrical Fast Transient**||**Immunity**||
|**(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, 2kV|Performance Criteria 2|**Voltage Interruptions Immunity**|IEC/EN 61000-4-11|
|Input, line to line, 1kV|Performance Criteria 2|0% for 5000ms|Performance Criteria 2|
|Input, line to earth, 2kV|Performance Criteria 2|||
|||||
|**EMC Emission**|EN60947-4-3|**Radio Interference**||
|**Radio Interference**||**Field Emission (Radiated)**|IEC/EN 55011|
|**Voltage Emission (Conducted)**|IEC/EN 55011|**30 - 1000MHz**|Class B|
|**0.15 - 30MHz**|Class A (industrial) with external|Class A (industrial) with external||
||filters|||
**3**
Specifications are subject to change without notice (31.01.2023)
**RM1A, RM1B**
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 A1, A2 (RM1..A) shall be supplied by a secondary circuit where power is limited by a transformer, rectifier, voltage divider, or similar device that derives power from a primary circuit, and where the short-circuit limit between conductors of the secondary circuit or between conductors and ground is 1500 VA or less. The short-circuit volt ampere limit is the product of the open circuit voltage and the short circuit ampere.
- 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.
## **Housin S ecifications g p**
|**Weight**||**Relay**||
|---|---|---|---|
|25A, 50A|Approx. 60g|Mounting screws|M5|
|75A,100A|Approx. 100g|Mounting torque|1.5-2.0Nm|
|**Baseplate**||||
|25A, 50A|Aluminium|||
|75A,100A|Copper,nickel-plated|||
|**Potting compound**|None|||
## **Connection S ecifications p**
|Strippinglength(X)<br>**Connection terminals**|||12 mm<br>**L1, T1**<br>~~e~~o|12 mm<br>**L1, T1**<br>~~e~~o|12 mm<br>**L1, T1**<br>~~e~~o|12 mm<br>**L1, T1**<br>~~e~~o|12 mm<br>**L1, T1**<br>~~e~~o|12 mm<br>**L1, T1**<br>~~e~~o|12 mm<br>**L1, T1**<br>~~e~~o||8 mm<br>**A1, A2**|8 mm<br>**A1, A2**|8 mm<br>**A1, A2**|8 mm<br>**A1, A2**|8 mm<br>**A1, A2**|8 mm<br>**A1, A2**|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Connection Type|||M5 screw with captivated washer||||M5 screw with captivated washer||M5 screw with captivated washer<br>M3 screw with captivated washer|||||||||M3 screw with captivated washer||M3 screw with captivated washer|||
|Rigid (solid & stranded)<br>UR rated data|1x 2.5 - 6.0 mm²<br>1x 14 - 10 AWG<br>X<br>oh||||||||||2x 2.5 - 6.0 mm²<br>1x 0.5 - 2.5 mm²<br>2x 14 - 10 AWG<br>1x 18 - 12 AWG|||||||||||2x 0.5 - 2.5 mm²<br>2x 18 - 12 AWG|
|Flexible with end sleeve|||||||||||2x 1.0 - 2.5 m~~m~~²||||||||||||
||||~~1x 1~~.0- 4.0mm²||||||||2x 2.5 - 4.0 mm²<br>1x 0.5 - 2.5 mm²||||||||1x 0.5 - 2.5 mm²|||2x 0.5 - 2.5 mm²|
||N@y||1x 18 - 12 AWG|||||1x 18 - 12 AWG|||2x 18 - 14 AWG<br>1x 18 - 12 AWG<br>2x 14 - 12 AWG|||||||||||2x 18 - 12 AWG|
|Flexible without end slee~~ve~~|||||||||||2x 1.0 - 2.5 mm²||||||||||||
||\@e||1x 1.0 - 6.0 mm²<br>1x 18 - 10 AWG||||||||2x 2.5 - 6.0 mm²<br>2x 18 - 14 AWG||||||||||||
||||||||||||2x 14 - 10 AWG||||||||||||
|Torque specification<br>Pozidrive 2<br>Pozidrive 1<br>2.4 Nm(21.2 lb-in)<br>0.5 Nm(4.4 lb-in)<br>~~re~~|||||||||||||||||||||||
|Aperture for termination lug|||12 mm||||||||7.5 mm|||||7.5 mm|||||||
**4**
Specifications are subject to change without notice (31.01.2023)
**RM1A, RM1B**
## **Functional Diagram**
## **Dimensions**
**==> picture [465 x 624] intentionally omitted <==**
**----- Start of picture text -----**<br>
A1(+~) REGULATION T1<br>* ZC<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>Connection Dia ram<br>g<br>L1<br>L2/N<br>*<br>LOAD<br>a<br>Rima<br>( )~-~- ( )~+~+<br>* Depends on system requirements Control Input<br>ut Power Dissi ation<br>p p<br>120<br>RM..100<br>100<br>RM..75<br>80 PEEL ELT EEE ae<br>RM..50<br>60 EEE RM.60..50 eer<br>BEDezae<br>40<br>eer<br>RM..25<br>20 estZATE<br>0 eet—— TTT EEE EE<br>0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100<br>Load current per pole in AACrms<br>Power dissipation in W<br>**----- End of picture text -----**<br>
- Varistor across input applies to AC control versions only.
## **Connection Dia ram g**
**==> picture [380 x 188] intentionally omitted <==**
**----- Start of picture text -----**<br>
L1<br>L2/N<br>*<br>LOAD<br>a<br>Rima<br>( )~-~- ( )~+~+<br>* Depends on system requirements Control Input<br>**----- End of picture text -----**<br>
## **Out ut Power Dissi ation p p**
**5**
Specifications are subject to change without notice (31.01.2023)
**RM1A, RM1B**
## **Heatsink Dimensions (load current versus ambient temperature)**
## **RM..25**
## **RM..50**
|**RM..25**|||||||||**RM..50**|**RM..50**||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Load|Thermal resistance||||||||Load||Load|||Thermal resistance||||||
|current[A]|[°C/W]||||||||current[A]|||||[°C/W]||||||
|||||||||||||||||||||
|**25.0**<br>2.70<br>2.34|1.98<br>1.61||1.25<br>0.89||||||**50.0**||1.03||0.86|0.70<br>0.53<br>0.37||0.20||||
|**22.5**<br>3.10<br>2.69|2.28<br>1.86||1.45<br>1.04||||||**45.0**||1.27||1.32|0.90<br>0.71<br>0.52||0.33||||
|**20.0**<br>3.61<br>3.13|2.65<br>2.18||1.70<br>1.23||||||**40.0**||1.54||1.59|1.10<br>0.89<br>0.67||0.45||||
|**17.5**<br>4.26<br>3.70|3.14<br>2.59||2.03<br>1.47||||||**35.0**||1.85||1.95|1.34<br>1.08<br>0.82||0.57||||
|**15.0**<br>5.14<br>4.47|3.80<br>3.14||2.47<br>1.80||||||**30.0**||2.26||2.47|1.65<br>1.34<br>1.03||0.72||||
|**12.5**<br>6.38<br>5.56|4.73<br>3.91||3.09<br>2.27||||||**25.0**||2.85||3.24|2.08<br>1.70<br>1.32||0.94||||
|**10.0**<br>8.25<br>7.19|6.14<br>5.08||4.02<br>2.97||||||**20.0**||3.73||3.24|2.75<br>2.26<br>1.77||1.27||||
|**7.5**<br>11.4<br>9.94|8.49<br>7.04||5.59<br>4.14||||||**15.0**||5.22||4.54|3.86<br>3.19<br>2.51||1.83||||
|**5.0**<br>17.7<br>15.4|13.2<br>11.0||8.74<br>6.51||||||**10.0**||8.21||7.16|6.11<br>5.05<br>4.00||2.95||||
|**2.5**<br>-<br>-|-<br>-||18.2<br>13.6||||||**5.0**||17.2||15.0|12.9<br>10.7<br>8.51||6.33||||
|**20**<br>**30**|**40**<br>**50**||**60**<br>**70**||TA||||||**20**||**30**|**40**<br>**50**<br>**60**||**70**||TA||
||||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>< 0.80 °C/W<br>Case to heatsink thermal resistance,Rth c-s2< 0.20 °C/W<br>Maximum allowable case temperature<br>100<br>Maximum allowable junction temperature<br>125<br>~~SSS~~||||< 20.0 °C/W<br>< 0.80 °C/W<br>< 0.20 °C/W<br>°C<br>°C|||||Junction to ambient thermal resistance,Rth j-a< 20.0 °C/W<br>Junction to case thermal resistance,Rth j-c<br>< 0.50 °C/W<br>Case to heatsink thermal resistance,Rth c-s2< 0.20 °C/W<br>Maximum allowable case temperature<br>100<br>°C<br>Maximum allowable junction temperature<br>125<br>°C<br>~~ee~~|||||||||||
|**RM1.60..50**|||||||||**RM..75**|||||||||||
|Load|Thermal resistance||||||||Load|||||Thermal resistance||||||
|current[A]|[°C/W]||||||||current[A]|||||[°C/W]||||||
|||||||||||||||||||||
|**50.0**<br>0.99<br>0.81|0.63<br>0.44||0.26<br>0.08||||||**75.0**||0.91||0.78|0.65<br>0.52<br>0.39||0.26||||
|**45.0**<br>1.28<br>1.07|0.86<br>0.65||0.44<br>0.23||||||**67.5**||1.10||0.96|0.81<br>0.66<br>0.51||0.36||||
|**40.0**<br>1.64<br>1.40|1.15<br>0.91||0.67<br>0.42||||||**60.0**||1.34||1.17|1.00<br>0.83<br>0.66||0.49||||
|**35.0**<br>2.11<br>1.82|1.54<br>1.25||0.96<br>0.67||||||**52.5**||1.60||1.40|1.20<br>1.00<br>0.80||0.60||||
|**30.0**<br>2.60<br>2.25|1.90<br>1.55||1.20<br>0.85||||||**45.0**||1.93||1.68|1.44<br>1.20<br>0.96||0.72||||
|**25.0**<br>3.30<br>2.86|2.43<br>1.99||1.55<br>1.11||||||**37.5**||2.38||2.08|1.78<br>1.49<br>1.19||0.89||||
|**20.0**<br>4.36<br>3.79|3.22<br>2.65||2.08<br>1.51||||||**30.0**||3.06||2.68|2.30<br>1.91<br>1.53||1.15||||
|**15.0**<br>6.1<br>5.4|4.6<br>3.77||2.97<br>2.18||||||**22.5**||4.21||3.68|3.16<br>2.63<br>2.10||1.58||||
|**10.0**<br>9.76<br>8.52|7.3<br>6.0||4.8<br>3.54||||||**15.0**||6.51||5.70|4.88<br>4.07<br>3.26||2.44||||
|**5.0**<br>--<br>--|15.47<br>12.85||10.24<br>7.6||||||**7.5**||13.5||11.77|10.09<br>8.41<br>6.73||5.04||||
|**20**<br>**30**|**40**<br>**50**||**60**<br>**70**||||TA||||**20**||**30**|**40**<br>**50**<br>**60**||**70**|||TA|
||||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>< 0.72 °C/W<br>Case to heatsink thermal resistance,Rth c-s2< 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-s2< 0.10 °C/W<br>Maximum allowable heatsink temperature<br>100<br>°C<br>Maximum allowable junction temperature<br>125<br>°C<br>~~SS~~||||||||||||||||||||
**6**
Specifications are subject to change without notice (31.01.2023)
**RM1A, RM1B**
## **Heatsink Dimensions (load current versus ambient temperature) (cont.)**
|**RM..100**|||||||
|---|---|---|---|---|---|---|
|Load||Thermal resistance|||||
|current[A]||[°C/W]|||||
|**100.0**<br>0.54<br>0.45<br>0.36<br>0.27<br>0.18<br>0.09<br>**90.0**<br>0.68<br>0.58<br>0.47<br>0.37<br>0.27<br>0.17<br>**80.0**<br>0.86<br>0.74<br>0.62<br>0.50<br>0.38<br>0.26<br>**70.0**<br>1.08<br>0.94<br>0.80<br>0.66<br>0.52<br>0.38<br>**60.0**<br>1.37<br>1.20<br>1.03<br>0.85<br>0.68<br>0.51<br>**50.0**<br>1.70<br>1.49<br>1.28<br>1.06<br>0.85<br>0.64<br>**40.0**<br>2.21<br>1.93<br>1.66<br>1.38<br>1.10<br>0.83<br>**30.0**<br>3.06<br>2.68<br>2.30<br>1.91<br>1.53<br>1.15<br>**20.0**<br>4.78<br>4.18<br>3.59<br>2.99<br>2.39<br>1.79<br>**10.0**<br>9.98<br>8.73<br>7.49<br>6.24<br>4.99<br>3.74<br>**20**<br>**30**<br>**40**<br>**50**<br>**60**<br>**70**<br>~~po |~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~po |~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~pot~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~po |~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~po |~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~pf~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~po |~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~po |~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~pf~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~ee~~||||TA|Junction to ambient thermal resistance,Rth j-a< 20.0 °C/W<br>Junction to case thermal resistance,Rth j-c<br>< 0.30 °C/W<br>Case to heatsink thermal resistance,Rth c-s2< 0.10 °C/W<br>Maximum allowable heatsink temperature<br>100<br>Maximum allowable junction temperature<br>125|< 20.0 °C/W<br>< 0.30 °C/W<br>< 0.10 °C/W<br>°C<br>°C|
|||Ambient temp. [°C]|Ambient temp. [°C]||||
2. Thermal resistance case to heatsink valves are applicable upon application of a fine layer of silicon based thermal paste HTS02S from Electrolube between SSR and heatsink.
## **Thermal S ecifications p**
||**RM1...25**||**RM1...50**||**RM1.60.50**||**RM1...75**||**RM1...100**|
|---|---|---|---|---|---|---|---|---|---|
|**Operating temperature range**|-20° to 70°C||-20° to 70°C||-20° to 70°C||-20° to 70°C||-20° to 70°C|
|**Storage temperature range **|-40° to 100°C||-40° to 100°C||-40° to 100°C||-40° to 100°C||-40° to 100°C|
|**Junction temperature**|≤ 125°C||≤ 125°C||≤ 125°C||≤ 125°C||≤ 125°C|
|**Rth junction to case**|≤ 0.80°C/W||≤ 0.50°C/W||≤ 0.72°C/W||≤ 0.35°C/W||≤ 0.30°C/W|
|**Rth junction to ambient**|≤ 20.0°C/W||≤ 20.0°C/W||≤ 20.0°C/W||≤ 20.0°C/W||≤ 20.0°C/W|
## **Heatsink Selection**
## **Orderin Ke g y**
**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: https://gavazziautomation.com/images/PIM/DATASHEET/ENG/SSR_Accessories.pdf
Heatsink Selector Tool:
https://gavazziautomation.com/nsc/hq/en/solid_state_relays
**7**
Specifications are subject to change without notice (31.01.2023)
**RM1A, RM1B**
## **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 size [A]**|**Class/ Model**|**Voltage [VAC]**|
|---|---|---|---|---|
||**circuit current [kArms]**||||
|RM1..25..|65|30|J or CC|600|
|RM1..50..|65|30|J|600|
|||20|HSJ20(Mersen*)|600|
|RM1..75..|65|80|J|600|
|||60|HSJ60(Mersen*)|600|
|RM1..100..|65|80|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]**||||
|RM1.xx.25..(xx = 23,40 or 48)|10|25|Mersen*|6.9gRB 10-25|10.3 x 38|
|RM1.60.25..|10|20|Mersen*|6.9gRB 10-20|10.3 x 38|
|RM1.xx.50..(xx = 23 or 40)|10|50|Mersen*|6.9zz CPgRC 14x51/50|14 x 51|
|RM1.xx.50..(xx = 48 or 60)|10|50|Mersen*|6.9zz CPgRC 22x58/50|22 x 58|
|RM1.xx.75..(xx = 23,40,48 or 60)|10|63|Mersen*|6.9zz CPgRC 22x58/63|22 x 58|
|RM1.xx.100.. (xx = 23, 40, 48 or 60)|10|100|Mersen*|6.9zz CP gRC 22x58/100|22 x 58|
zz = 00, without fuse trip indication zz = 21, with fuse trip indication
* Formerly Ferraz Shawmut
**8**
Specifications are subject to change without notice (31.01.2023)
**RM1A, RM1B**
## **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)**|||
|**RM1..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|
|**RM1..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-pole||||
||S202-Z25 (25A)|S202-B13 (13A)|2.5|19.0|
||||4.0|30.4|
|**RM1..75..**|**1-pole**||||
||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-pole||||
||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|
|**RM1..100..**|**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.
**9**
Specifications are subject to change without notice (31.01.2023)
**RM1A, RM1B**
## **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。 ~~en~~ 25 O
**10**
Specifications are subject to change without notice (31.01.2023)
**RM1A, RM1B**
## **FASTON terminals**
- Faston tabs
- Tab dimensions according to DIN 46342 part 1
- Pure tin-plated brass
## **Orderin Ke g y**
**Screw mounted** * **Faston terminals RM1A48D25 F 4** | RS, RM 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 ~~ee~~
* 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>
- Terminal adaptors for 35mm[2] cable **Ordering Key RM635FK P** • Type RM635FK RM terminal adaptor
- • Pack size: 10 pieces Touch protected (optional)
- + ~~—~~ **Other Accessories** • Graphite thermal pad • Touch safety cover with adhesive on one • Type RMIP20 side • IP20 protection degree
- IP20 protection degree
- 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: https://gavazziautomation.com/images/PIM/DATASHEET/ENG/SSR_Accessories.pdf
**11**
Specifications are subject to change without notice (31.01.2023)
Updated at June 10, 2026
Founded in Milan in 1931, Carlo Gavazzi is a globally recognized leader in the design and manufacture of high-quality automation components. For nearly a century, the company has driven technological innovation in the industrial and building automation markets. With ISO 9001-certified production facilities across Europe and Asia, Carlo Gavazzi delivers state-of-the-art solutions tailored for demanding applications, including HVAC, renewable energy, semiconductor manufacturing, and electric vehicle charging infrastructure. Our extensive portfolio of Carlo Gavazzi components focuses heavily on their industry-leading switching and sensing technologies. We carry a comprehensive selection of solid state relays, contactors, and power relays engineered for exceptional reliability and thermal performance. Alongside these robust switching solutions, our range features a wide array of precision sensors, with a strong emphasis on proximity switches and light sensors that are critical for automated manufacturing processes, mobile equipment, and access control systems. Beyond core sensing and switching, the Carlo Gavazzi lineup extends into essential power management, circuit protection, and control devices. This includes highly efficient AC/DC converters, thermal magnetic circuit breakers, and advanced panel instrumentation designed to monitor and optimize energy efficiency. From current sensing transformers to motor starters, engineers consistently trust Carlo Gavazzi to provide competitive, dependable, and forward-thinking components for their most complex automation challenges.
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