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RAM1A23D50
SSR-INDUSTRIAL MT. SSR ZS 230V 50A
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: CARLO GAVAZZI / PARTNER STOCK
- Product type:
- SVHC: No SVHC (07-Nov-2024)
- Product Range: RAM1A Series
| Delivery and price | |
|---|---|
| Units per pack | 6 |
| Price | 58.47 € |
| Current stock | 25+ |
| Lead time | 30 days |
Datasheet
## **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/22-48VDC**
- **Operational ratings: Up to 125AACrms and 600VACrms**
- **Blocking voltage: Up to 1600Vp**
- **Opto-isolation: > 4000VACrms**
- **Integrated overvoltage protection by self switching (suffix “Z” option)**
## **Ordering Key**
## **Product Description**
es zero. The instant-on relay **Solid State Relay** with DC control input can be **Number of poles** used for phase angle control. **Switching mode** The built-in snubber secures **Rated operational voltage** transient protection. The LED **Control voltage** indicates the status of the **Rated operational current** control input. The clip-on cov- **Options** er secures touch protection (IP 20). Protected output terminals can handle cables up to 16 mm[2] .
The industrial, 1-phase relay with antiparallel thyristor output is the most widely used industrial SSR due to its multiple application possibilities. The relay can be used for resistive, inductive and capacitive loads. The zero switching relay switches ON when the sinusoidal curve crosses zero and switches OFF when the current cross-
## **RAM 1 A 60 D 125 Z**
## **Type Selection**
**==> picture [500 x 79] intentionally omitted <==**
**----- Start of picture text -----**<br>
|||||||
|---|---|---|---|---|---|
|Switching mode|Rated operational|Control voltage|Rated operational|Options|
|voltage|current|
|A: Zero Switching|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-|
|(DC Control only)|69: 690VACrms|75 : 75AACrms|switching)|
|* 4 to 32VDC for RAM1A60..., RAM1A69...|100:100AACrms|
|* 4 to 32VDC for RAM1B types|125:125AACrms|
**----- End of picture text -----**<br>
## **Selection Guide**
**==> picture [510 x 103] intentionally omitted <==**
**----- Start of picture text -----**<br>
|||||||||
|---|---|---|---|---|---|---|---|
|Rated|Blocking|Control|Rated operational current|
|operational|voltage|voltage|25A|50A|75A|100A|125A|
|voltage|
|230VACrms|650Vp|3 - 32VDC|RAM1A23D25|RAM1A23D50|RAM1A23D75|RAM1A23D100|RAM1A23D125|
|20-280VAC/22-48VDC|RAM1A23A25|RAM1A23A50|RAM1A23A75|RAM1A23A100|RAM1A23A125|
|600VACrms|1200Vp|4 - 32VDC|RAM1A60D25|RAM1A60D50|RAM1A60D75|RAM1A60D100|RAM1A60D125|
|20-280VAC/22-48VDC|RAM1A60A25|RAM1A60A50|RAM1A60A75|RAM1A60A100|RAM1A60A125|
|690VACrms|1600Vp|4-32VDC|-|-|RAM1A69D75|RAM1A69D100|RAM1A69D125|
|20-280VAC/ 22-48VDC|-|-|RAM1A69A75|RAM1A69A100|RAM1A69A125|
**----- End of picture text -----**<br>
## **Options**
**1** Overvoltage protection by self-switching: add suffix Z to include. Example: RAM1A60D25Z. Not applicable for 690V version.
**1**
Specifications are subject to change without notice (28.02.2007)
**RAM1A, RAM1B**
## **General Specifications**
||**RAM1.23..**||**RAM1.60..**||**RAM1.69..**|
|---|---|---|---|---|---|
|Operational voltage range||||||
|RAM1A...|24 to 265VACrms||42 to 660VACrms||42 to 760VACrms|
|RAM1B...|42 to 265VACrms||42 to 660VACrms||42 to 760VACrms|
|Blockingvoltage|≥650Vp||≥1200Vp||≥1600Vp|
|Zero voltage turn-on|≤10V||≤10V||≤10V|
|Operational frequencyrange|45 to 65Hz||45 to 65Hz||45 to 65Hz|
|Power factor|> 0.5@230VACrms||> 0.5@600VACrms||> 0.5@690VACrms|
|Approvals|UL,cUL,CSA,VDE*||UL,cUL,CSA,VDE*||-|
|CE-marking|Yes||Yes**||Yes**|
- VDE0805
** Heatsink must be conected to ground
## **Input Specifications**
||**RAM1...D..**||**RAM1...A..**|
|---|---|---|---|
|Control voltage range||||
|RAM1A23...|3-32VDC||20-280VAC, 22-48VDC|
|RAM1A60..., RAM1A69...|4-32VDC||20-280VAC, 22-48VDC|
|RAM1B...|4-32VDC||-|
|Pick-up voltage @ Ta = 25˚C||||
|RAM1A23...|2.5VDC||18VAC/DC|
|RAM1A60..., RAM1A69...|3.5VDC||18VAC/DC|
|RAM1B...|3.5VDC||-|
|Reverse voltage|32VDC||-|
|Dropout voltage|1.2VDC||6VAC/DC|
|Input current @ max input voltage||||
|RAM1A|≤12mA||≤20mA|
|RAM1B|≤15mA||-|
|Response time pick-up||||
|RAM1A|≤1/2 cycle||≤12ms|
|RAM1B|≤0.1ms||-|
|Response time drop-out|≤1/2 cycle||≤40ms|
## **Output Specifications**
||**RAM1...25**||**RAM...50**||**RAM1...75**||**RAM1...100**||**RAM...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|< 520A2s||< 1800A2s||< 3200A2s||< 6600A2s||<18000A2s|
|On-state voltage drop|≤1.6Vrms||≤1.6Vrms||≤1.6Vrms||≤1.6Vrms||≤1.6Vrms|
|Critical dV/dt off-state min.|1000V/µs||1000V/µs||1000V/µs||1000V/µs||1000V/µs|
**2**
Specifications are subject to change without notice (28.02.2007)
**RAM1A, RAM1B**
## **Housing Specifications**
Weight 25A, 50A Approx. 60g 75A, 100A, 125A Approx. 100g Housing material Noryl, black Baseplate 25A, 50A Aluminium 75A, 100A, 125A Copper, nickel-plated
Relay Mounting screws M5 Mounting torque 1.5-2.0Nm Control terminal Mounting screws M3 x 9 Mounting torque 0.5Nm Power terminal Mounting screws M5 x 9 Mounting torque 2.4Nm
## **Functional Diagram**
## **Dimensions**
**==> picture [443 x 139] intentionally omitted <==**
**----- Start of picture text -----**<br>
A1( )+~ REGULATION T1<br>ZC<br>IO<br>A2( )-~ L1<br>LED APPLY<br>HEATSINK<br>COMPOUND<br>All dimensions in mm.<br>**----- End of picture text -----**<br>
## **Heatsink Dimensions (load current versus ambient temperature)**
**==> picture [235 x 227] intentionally omitted <==**
**----- Start of picture text -----**<br>
RAM..25<br>Load Thermal resistance Power<br>current [A] [K/W] dissipation [W]<br>25.0 3.23 2.80 2.37 1.94 1.51 1.09 0.66 23<br>22.5 3.70 3.21 2.73 2.24 1.75 1.26 0.78 21<br>Pf | Ff tT<br>20.0 4.30 3.74 3.17 2.61 2.05 1.49 0.92 18<br>ee ee ee<br>17.5 5.07 4.41 3.76 3.10 2.44 1.78 1.12 15<br>PF | [| | | ft ff<br>15.0 6.12 5.33 4.54 3.75 2.96 2.17 1.38 13<br>ee ee ee<br>12.5 7.58 6.61 5.64 4.66 3.69 2.72 1.75 10<br>ee ee ee<br>10.0 9.80 8.55 7.30 6.05 4.80 3.55 2.30 8<br>ee<br>7.5 13.5 11.80 10.09 8.37 6.66 4.94 3.23 6<br>Pf EEeeETee<br>5.0 - 18.3 15.7 13.04 10.39 7.74 5.09 4<br>ee ee ee<br>2.5 - - - - - 16.2 10.7 2<br>ee<br>20 30 40 50 60 70 80 TA<br>Ambient temp. [°C]<br>**----- End of picture text -----**<br>
**==> picture [37 x 8] intentionally omitted <==**
**----- Start of picture text -----**<br>
RAM..50<br>**----- End of picture text -----**<br>
|Load|Power<br>Thermal resistance<br>Load|Power<br>Thermal resistance<br>Load||
|---|---|---|---|
|dissipation [W]<br>[K/W]<br>current [A]||||
|||||
|**50.0**|**1.25**<br>**1.07**<br>**0.88**<br>**0.70**<br>**0.52**<br>**0.34**<br>**0.16**||**55**|
|**45.0**<br>**40.0**<br>**35.0**<br>**30.0**<br>**25.0**<br>**20.0**<br>**15.0**<br>**10.0**<br>**5.0**|**1.46**<br>**1.25**<br>**1.04**<br>**0.84**<br>**0.63**<br>**0.42**<br>**0.21**<br>**1.73**<br>**1.49**<br>**1.25**<br>**1.01**<br>**0.77**<br>**0.52**<br>**0.28**<br>**2.08**<br>**1.80**<br>**1.51**<br>**1.23**<br>**0.94**<br>**0.66**<br>**0.37**<br>**2.56**<br>**2.22**<br>**1.87**<br>**1.53**<br>**1.18**<br>**0.84**<br>**0.49**<br>**3.24**<br>**2.81**<br>**2.38**<br>**1.95**<br>**1.52**<br>**1.09**<br>**0.66**<br>**4.26**<br>**3.71**<br>**3.15**<br>**2.59**<br>**2.03**<br>**1.47**<br>**0.92**<br>**5.99**<br>**5.22**<br>**4.45**<br>**3.67**<br>**2.90**<br>**2.12**<br>**1.35**<br>**9.49**<br>**8.27**<br>**7.06**<br>**5.85**<br>**4.64**<br>**3.43**<br>**2.22**<br>**-**<br>**17.5**<br>**15.0**<br>**12.4**<br>**9.91**<br>**7.39**<br>**4.86**<br>Pf<br>|<br>cfhtt<br>ee<br>ee ee<br>PF<br>|<br>|<br>|<br>[|<br>ft fl<br>ee<br>ee<br>ee<br>ee ee<br>**P**f<br>**|**<br>t**f** **c**t fT<br>F<br>|<br>v<br>E|]<br>ee<br>Ft<br>|<br>|<br>|<br>[| {Cd||**48**<br>**41**<br>**35**<br>**29**<br>**23**<br>**18**<br>**13**<br>**8**<br>**4**|
||**20**<br>**30**<br>**40**<br>**50**<br>**60**<br>**70**<br>**80**||**TA**|
||Ambient temp. [°C]|||
**3**
Specifications are subject to change without notice (28.02.2007)
**RAM1A, RAM1B**
## **Heatsink Dimensions (cont.)**
## **RAM..75**
## **RAM..100**
**==> picture [487 x 211] intentionally omitted <==**
**----- Start of picture text -----**<br>
||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Load|Thermal resistance|Power|Load|Thermal resistance|Power|
|current [A]|[K/W]|dissipation [W]|current [A]|[K/W]|dissipation [W]|
|75.0|0.94|0.82|0.70|0.58|0.47|0.35|0.23|85|100.0|0.60|0.52|0.43|0.34|0.26|0.17|0.09|117|
|67.5|1.10|0.96|0.82|0.69|0.55|0.41|0.27|73|90.0|0.74|0.64|0.54|0.44|0.34|0.24|0.14|101|
|||||||||||||||||||||ft|
|60.0|1.30|1.14|0.98|0.81|0.65|0.49|0.33|61|80.0|0.91|0.79|0.68|0.56|0.45|0.33|0.22|87|
||||||||||||||||||||TT|
|52.5|1.57|1.38|1.18|0.98|0.79|0.59|0.39|51|70.0|1.09|0.96|0.82|0.68|0.55|0.41|0.27|73|
|||||||||||||||||||||||||||
|45.0|1.95|1.70|1.46|1.22|0.97|0.73|0.49|41|60.0|1.33|1.16|1.00|0.83|0.66|0.50|0.33|60|
|ee|ee|ee|
|37.5|2.48|2.17|1.86|1.55|1.24|0.93|0.62|32|50.0|1.66|1.45|1.24|1.04|0.83|0.62|0.41|48|
|aa|
|30.0|3.32|2.90|2.49|2.07|1.66|1.24|0.83|24|40.0|2.16|1.89|1.62|1.35|1.08|0.81|0.54|37|
|a|
|22.5|4.75|4.15|3.56|2.97|2.37|1.78|1.19|17|30.0|3.01|2.64|2.26|1.88|1.51|1.13|0.75|27|
|||a|
|15.0|7.68|6.72|5.76|4.80|3.84|2.88|1.92|10|20.0|4.73|4.14|3.55|2.96|2.37|1.78|1.18|17|
|7.5|||-|||14.59|||12.50|||10.42|TT||8.34|||6.25|4.17|5|10.0|P|a|9.94|||8.70|||7.45|Tl|6.21|TT|4.97|3.73|2.48|8|
|PT|pF|||||
|20|30|40|50|60|70|80|TA|20|30|40|50|60|70|80|TA|
|Ambient temp. [°C]|Ambient temp. [°C]|
**----- End of picture text -----**<br>
## **RAM..125**
**==> picture [243 x 275] intentionally omitted <==**
**----- Start of picture text -----**<br>
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|Load|Thermal resistance|Power|
|current [A]|[K/W]|dissipation [W]|
|125.0|0.63|0.55|0.47|0.40|0.32|0.24|0.16|126|
|112.5|0.73|0.64|0.54|0.45|0.36|0.27|0.18|110|
|H+} ++|
|||||||||||
|100.0|0.84|0.74|0.63|0.53|0.42|0.32|0.21|95|
|||||||hv|||TT|
|87.5|0.99|0.87|0.74|0.62|0.50|0.37|0.25|81|
|Pot|||||||
|75.0|a|1.20|1.05|0.90|0.75|0.60|0.45|0.30|67|
|62.5|1.48|1.30|1.11|0.93|0.74|0.56|0.37|54|
|a|
|50.0|1.92|1.68|1.44|1.20|0.96|0.72|0.48|42|
|||ee|
|37.5|2.65|2.32|1.98|1.65|1.32|0.99|0.66|30|
|||||||||||||
|25.0|4.12|3.60|3.09|2.57|2.06|1.54|1.03|19|
|||||||||||||
|12.5|8.55|||7.48|||6.41|5.34|4.27|3.21|2.14|9|
|PF|||||hv||||hr]|
|20|30|40|50|60|70|80|TA|
|Ambient temp. [°C]|
|Thermal Specifications|
|Operating temperatureStorage temperature|--4040°° to +80 to +100°C (°C (-40-40˚ to +176˚ to +212˚F)˚F)|
|Junction temperature|≤|125˚C (257˚F)|
**----- End of picture text -----**<br>
## **Heatsink Selection**
**==> picture [237 x 190] intentionally omitted <==**
**----- Start of picture text -----**<br>
||||
|---|---|---|
|Carlo Gavazzi Heatsink|Thermal|for power|
|(see Accessories)|resistance...|dissipation|
|No heatsink required|---|N/A|
|RHS 300|5.00 K/W|> 0 W|
|RHS 100|3.00 K/W|> 25 W|
|RHS 45C|2.70 K/W|> 55 W|
|RHS 45B|2.00 K/W|> 60 W|
|RHS 90A|1.35 K/W|> 60 W|
|RHS 45C plus fan|1.25 K/W|> 0 W|
|RHS 45B plus fan|1.20 K/W|> 0 W|
|RHS 112A|1.10 K/W|> 100 W|
|RHS 301|0.80 K/W|> 80 W|
|RHS 90A plus fan|0.45 K/W|> 0 W|
|RHS 112A plus fan|0.40 K/W|> 0 W|
|RHS 301 plus fa|0.25 K/W|> 0 W|
|Consult your distribution|> 0.25 K/W|N/A|
|Infinite heatsink - No solution|---|N/A|
**----- End of picture text -----**<br>
## **Isolation**
**==> picture [194 x 32] intentionally omitted <==**
**----- Start of picture text -----**<br>
||||
|---|---|---|
|Rated isolation voltage|
|Input to output|≥|4000VACrms|
|Output to case|≥|4000VACrms|
**----- End of picture text -----**<br>
**4**
Specifications are subject to change without notice (28.02.2007)
**RAM1A, RAM1B**
## **Faston terminals**
- Faston tabs
- Tab dimensions according to DIN 46342 part 1
- • Pure tin-plated brass
## **Ordering Key**
**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 ** * RM48 F4 in packs of 20 RS, RM Solid State Relay Tab orientation** —
*** 0: Flat (0º) 4: Angled (45º) ** 48: 4.8mm faston for input 63: 6.3mm faston for output**
## **Fork Terminals**
- Terminal adaptors for 35mm[2] cable **Ordering Key RM635FK P**
- • Type RM635FK **RM terminal adaptor**
- • Pack size: 20 pieces ~~OO~~ **Touch protected (optional)**
## **Other Accessories**
- Heatsinks and fans
- Type RHS....
- 0.25 to 5.00 k/W
- Touch safety cover
- Type RMIP20
- IP20 protection degree
- Single and dual • Pack size: 20 pieces relay types
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.
**5**
Specifications are subject to change without notice (28.02.2007)
Updated at June 10, 2026
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