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RA4450-D08
Solid State Relay, SPST-NO, 50 A, 480 VAC, Panel Mount, Screw, Zero Crossing
⚠️ 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
- Product type:
- SVHC: No SVHC (21-Jan-2025)
- Load Current: 50A
- Product Range: RA44 Series
- Relay Mounting: Panel Mount
- Switching Mode: Zero Crossing
- Relay Terminals: Screw
- Control Voltage Max: 32VDC
- Control Voltage Min: 3VDC
- Contact Configuration: SPST-NO
- Operating Voltage Max: 480VAC
- Operating Voltage Min: 42VAC
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 103.56 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
## **Solid State Relays Industrial, 1-Phase ZS, Standard Range Types RA 24.. .. 06/RA 44.. .. 08/RA 48.. .. 12** - **AC Solid State Relay** - **Zero switching** - **Direct copper bonding technology** - **Rated operational current: 25, 50 and 90 AACrms** - **Blocking voltage: Up to 1200 Vp** - **Rated operational voltage: Up to 480 VACrms** - **3 input ranges: 3 to 32 VDC, 10 to 90 VAC/DC and 90 to 280 VAC/DC** - **Isolation: OPTO (input-output) 4000 VACrms** **Product De scri tion Orderin Ke p g y RA 24 25 LA 06** The zero switching relay with tive, inductive and capacitive **Solid State Relay** antiparallel thyristor output is loads. The zero switching re - **Switching mode** the most widely used in duslay switch es ON when the **Rated operational voltage** tri al SSR due to its multiple sine curve just cross es zero **Rated operational current** ap pli ca tion possibilities. The and switch es OFF when the **Control voltage** ~~ST~~ relay can be used for re sis - cur rent cross es zero. **Blocking voltage** ## **T e Selection yp** **Switching mode Rated operational Rated operational Control voltage Blocking voltage voltage current** A: Zero switching 24: 230 VACrms 25: 25 AACrms D: 3 to 32 VDC 06: 650 Vp 44: 400 VACrms 50: 50 AACrms LA: 10 to 90 VAC/DC 08: 850 Vp 48: 480 VACrms 90: 90 AACrms HA: 90 to 280 VAC/DC 12: 1200 Vp ## **Selection Guide** **Rated opera- Blocking Control voltage Rated op er a tion al current tional voltage voltage 25 AACrms 50 AACrms 90 AACrms** 3 to 32 VDC **RA 2425 -D 06 RA 2450 -D 06 RA 2490 -D 06** 230 VACrms 650 Vp 10 to 90 VAC/DC **RA 2425 LA 06 RA 2450 LA 06 RA 2490 LA 06** 90 to 280 VAC/DC **RA 2425 HA 06 RA 2450 HA 06 RA 2490 HA 06** 3 to 32 VDC **RA 4425 -D 08 RA 4450 -D 08 RA 4490 -D 08** 400 VACrms 850 Vp 10 to 90 VAC/DC **RA 4425 LA 08 RA 4450 LA 08 RA 4490 LA 08** 90 to 280 VAC/DC **RA 4425 HA 08 RA 4450 HA 08 RA 4490 HA 08** 3 to 32 VDC **RA 4825 -D 12 RA 4850 -D 12 RA 4890 -D 12** 480 VACrms 1200 Vp 10 to 90 VAC/DC **RA 4825 LA 12 RA 4850 LA 12 RA 4890 LA 12** 90 to 280 VAC/DC **RA 4825 HA 12 RA 4850 HA 12 RA 4890 HA 12** **1** Specifications are subject to change without notice (30.09.2019) **RA 24.. .. 06, RA 44.. .. 08, RA 48.. .. 12** ## **General S ec i fi ca tions p** ||**RA 24.. .. 06 RA 44.. .. 08 RA 48.. .. 12**|**RA 24.. .. 06 RA 44.. .. 08 RA 48.. .. 12**|**RA 24.. .. 06 RA 44.. .. 08 RA 48.. .. 12**|**RA 24.. .. 06 RA 44.. .. 08 RA 48.. .. 12**|**RA 24.. .. 06 RA 44.. .. 08 RA 48.. .. 12**| |---|---|---|---|---|---| |Operational voltage range 24 to 280 VACrms|24 to 280 VACrms 42 to 480 VACrms|42 to 480 VACrms|42 to 480 VACrms 42 to 530 VACrms|42 to 530 VACrms|42 to 530 VACrms| |Blockingvoltage ≥ 650 V|e ≥ 650 Vp ≥ 850 V|≥ 850 V|≥ 850 Vp ≥ 1200 V|≥ 1200 V|≥ 1200 Vp| |Zero voltage turn-on ≤ 20 V ≤ 40 V ≤ 40 V|e turn-on ≤ 20 V ≤ 40 V ≤ 40 V|e turn-on ≤ 20 V ≤ 40 V ≤ 40 V|e turn-on ≤ 20 V ≤ 40 V ≤ 40 V|e turn-on ≤ 20 V ≤ 40 V ≤ 40 V|e turn-on ≤ 20 V ≤ 40 V ≤ 40 V| |Operational frequencyrange 45 to 65 Hz 45 to 65 Hz 45 to 65 Hz|45 to 65 Hz 45 to 65 Hz 45 to 65 Hz|45 to 65 Hz 45 to 65 Hz 45 to 65 Hz|45 to 65 Hz 45 to 65 Hz 45 to 65 Hz|45 to 65 Hz 45 to 65 Hz 45 to 65 Hz|45 to 65 Hz 45 to 65 Hz 45 to 65 Hz| |Power factor ≥ 0.5 @ 230 VACrms ≥ 0.5 @ 400 VACrms ≥ 0.5 @ 480 VACrms|Power factor ≥ 0.5 @ 230 VACrms ≥ 0.5 @ 400 VACrms ≥ 0.5 @ 480 VACrms|Power factor ≥ 0.5 @ 230 VACrms ≥ 0.5 @ 400 VACrms ≥ 0.5 @ 480 VACrms|Power factor ≥ 0.5 @ 230 VACrms ≥ 0.5 @ 400 VACrms ≥ 0.5 @ 480 VACrms|Power factor ≥ 0.5 @ 230 VACrms ≥ 0.5 @ 400 VACrms ≥ 0.5 @ 480 VACrms|Power factor ≥ 0.5 @ 230 VACrms ≥ 0.5 @ 400 VACrms ≥ 0.5 @ 480 VACrms| |Approvals CE, cURus, CSA, EAC CE, cURus, CSA, EAC CE, cURus, CSA, EAC|CE, cURus, CSA, EAC CE, cURus, CSA, EAC CE, cURus, CSA, EAC|CE, cURus, CSA, EAC CE, cURus, CSA, EAC CE, cURus, CSA, EAC|CE, cURus, CSA, EAC CE, cURus, CSA, EAC CE, cURus, CSA, EAC|CE, cURus, CSA, EAC CE, cURus, CSA, EAC CE, cURus, CSA, EAC|CE, cURus, CSA, EAC CE, cURus, CSA, EAC CE, cURus, CSA, EAC| ## **Out ut S ec i fi ca tions p p** |**RA..25 .. .. **||**RA ..50 .. ..**||**RA ..90 .. ..**| |---|---|---|---|---| |Rated operational current AC 51 25 Arms||50 Arms||90 Arms| |AC 53a 5 Arms||15 Arms||20 Arms| |Minimum operational current 150 mArms||250 mArms||400 mArms| |Rep. overload current t=1 s ≤ 55 Arms||≤ 125 Arms||≤ 150 Arms| |Non-rep. surge current t=10 ms 325 Ap||600 Ap||1150 Ap| |Off-state leakage current||||| |@ rated voltage and frequency≤ 3 mArms||≤ 3 mArms||≤ 3 mArms| |I2t for fusingt=10 ms<br>≤ 525 A2s||≤ 1800 A2s||≤ 6600 A2s| |On-state voltage drop||||| |@ rated current<br>≤ 1.6 Vrms||≤ 1.6 Vrms||≤ 1.6 Vrms| |Critical dV/dt commutating≥ 500 V/µs||≥ 500 V/µs||≥ 500 V/µs| |Critical dV/dt off-state<br>≥ 500 V/µs||≥ 500 V/µs||≥ 500 V/µs| ## **In ut S ec i fi ca tions p p** ||**RA .... -D .. RA .... LA .. RA .... HA ..**|**RA .... -D .. RA .... LA .. RA .... HA ..**|**RA .... -D .. RA .... LA .. RA .... HA ..**|**RA .... -D .. RA .... LA .. RA .... HA ..**|**RA .... -D .. RA .... LA .. RA .... HA ..**| |---|---|---|---|---|---| |<br>Control voltage range 3 to 32 VDC|e 3 to 32 VDC 10 to 90 VAC/DC|10 to 90 VAC/DC|10 to 90 VAC/DC 90 to 280 VAC/DC|90 to 280 VAC/DC|90 to 280 VAC/DC| |Pick-upvoltage ≤ 3 VDC|e ≤ 3 VDC ≤ 10 VAC/DC|≤ 10 VAC/DC|≤ 10 VAC/DC ≤ 90 VAC/DC|≤ 90 VAC/DC|≤ 90 VAC/DC| |Drop-out voltage ≥ 1 VDC|e ≥ 1 VDC ≥ 1 VAC/DC|≥ 1 VAC/DC|≥ 1 VAC/DC ≥ 10 VAC/DC|≥ 10 VAC/DC|≥ 10 VAC/DC| |Reverse voltage ≤ 32 VDC|≤ 32 VDC||||| |Input impedance 1.5 kΩ 5.4 kΩ 44 kΩ|edance 1.5 kΩ 5.4 kΩ 44 kΩ|edance 1.5 kΩ 5.4 kΩ 44 kΩ|edance 1.5 kΩ 5.4 kΩ 44 kΩ|edance 1.5 kΩ 5.4 kΩ 44 kΩ|edance 1.5 kΩ 5.4 kΩ 44 kΩ| |Response timepick-up ≤ 1/2 c|≤ 1/2 cycle ≤ 1 c|cle ≤ 1 c|cle ≤ 1 cycle ≤ 1 c|cle ≤ 1 c|cle ≤ 1 cycle| |Controlpulse width ≥ 0.5 ms ≥ 0.5 ms ≥ 0.5 ms|ulse width ≥ 0.5 ms ≥ 0.5 ms ≥ 0.5 ms|ulse width ≥ 0.5 ms ≥ 0.5 ms ≥ 0.5 ms|ulse width ≥ 0.5 ms ≥ 0.5 ms ≥ 0.5 ms|ulse width ≥ 0.5 ms ≥ 0.5 ms ≥ 0.5 ms|ulse width ≥ 0.5 ms ≥ 0.5 ms ≥ 0.5 ms| |Response time drop-out ≤ 1/2 cycle ≤ 1/2 cycle|Response time drop-out ≤ 1/2 cycle ≤ 1/2 cycle|Response time drop-out ≤ 1/2 cycle ≤ 1/2 cycle|Response time drop-out ≤ 1/2 cycle ≤ 1/2 cycle ≤ 1/2 cycle|≤ 1/2 cycle|≤ 1/2 cycle| **2** Specifications are subject to change without notice (30.09.2019) **RA 24.. .. 06, RA 44.. .. 08, RA 48.. .. 12** ## **Isolation** |**Isolation**|| |---|---| |Rated isolation voltage|| |Input to output ≥ 4000 VACrms|≥ 4000 VACrms| |Rated isolation voltage|| |Output to case ≥4000 VACrms|≥4000 VACrms| |Insulation resistance|| |Input to output ≥ 10|≥ 1010 Ω| |Insulation resistance|| |Ouput to case ≥ 10|ut to case ≥ 1010 Ω| |Insulation capacitance|| |Input to output ≤ 8|≤ 8pF| |Insulation capacitance|| |Output to case ≤ 100 pF|≤ 100 pF| ## **Housin S ecifications g p** |Weight A|ht Approx. 110g| |---|---| |Housingmaterial Nor|material Noryl GFN 1,black| |Base plate 25, 50 A Aluminium, nickel-plated|Base plate 25, 50 A Aluminium, nickel-plated| |90 A Co|90 A Copper,nickel-plated| |Pottingcompound Pol|Polyurethane| |Relay|| |Mounting screws M5|M5| |Mountingtorque ≤ 1.5 Nm|ue ≤ 1.5 Nm| |Control terminal|| |Mounting screws M3 x 6|M3 x 6| |Mountingtorque ≤ 0.5 Nm|ue ≤ 0.5 Nm| |Power terminal|| |Mounting screws M5 x 6|M5 x 6| |Mounting torque ≤ 2.4 Nm|Mounting torque ≤ 2.4 Nm| ## **Functional Di a gram** ## **Dimensions** **==> picture [462 x 177] intentionally omitted <==** **----- Start of picture text -----**<br> **<br>Mains input/load output<br>: Ete) (=~<br>28<br>I<br>L+/L@)— ae O 2XM5<br>Control<br>input<br>wl + COMPOUND<br>@)<br>Load output/mains input H el) e y<br>** = ± 0.4 mm ** os<br>*** = ± 0.5 mm<br>All dimensions in mm<br>*** ***<br>*** ***<br>**----- End of picture text -----**<br> ## **Connection Dia ram g** **==> picture [216 x 16] intentionally omitted <==** **----- Start of picture text -----**<br> Control<br>Line/load<br>input | eect [>pee | |<br>**----- End of picture text -----**<br> **3** Specifications are subject to change without notice (30.09.2019) **RA 24.. .. 06, RA 44.. .. 08, RA 48.. .. 12** ## **Heatsink Dimensions (load current versus ambient temperature)** |**RA ..25 .. ..**|||**RA ..50 .. ..**|**RA ..50 .. ..**||| |---|---|---|---|---|---|---| |Load<br>current [A]<br>Thermal resistance<br>[oC/W]|Power<br>dissipation [W]||Power<br>dissipation [W]<br>Thermal resistance<br>[oC/W]<br>Load<br>current [A]|||dissipation [W]| |||||||| |2 1.7 1.4 1 0.71 0.40 32<br>2.5 2.1 1.8 1.4 1 0.66 27<br>3.1 2.7 2.3 1.9 1.4 1 23<br>4. 3.5 3 2.5 2 1.4 20<br>4.9 4.3 3.7 3.1 2.5 1.9 16<br>6.2 5.4 4.6 3.9 3.1 2.3 13<br>8.1 7.1 6.1 5.1 4 3 10<br>11.3 9.9 8.5 7.1 5.6 4.2 7<br>- 15.6 13.3 11.1 8.9 6.7 5<br>- - - - 18.7 14 2<br>20 30 40 50 60 70<br>25<br>22.5<br>20<br>17.5<br>15<br>12.5<br>10<br>7.5<br>5<br>2.5<br>~~pd~~<br>~~ee~~<br>~~ee eee~~<br>ee<br>ee<br>~~rT TP~~<br>~~ee~~<br>~~re~~<br>~~TTF~~<br>a||1 0.71 0.40 32<br>1 0.66 27<br>1 23<br>20<br>16<br>13<br>3 10<br>7<br>5<br>2<br>TA|0.92 0.76 0.60 0.45 0.29<br>1.2<br>1.5 1.3 1.1<br>1.9 1.6 1.4 1.1<br>2.4 2.1 1.8 1.5 1.2<br>3<br>3.9 3.5 3<br>5.5 4.8 4.1 3.4 2.7 2.1<br>8.6 7.5 6.4 5.4 4.3 3.2<br>17.9 15.6 13.4 11.2<br>20<br>50<br>45<br>40<br>35<br>30<br>25<br>20<br>15<br>10<br>5|0.92 0.76 0.60 0.45 0.29 - 63<br>1.2 0.99 0.80 0.62 0.44 0.26 55<br>1.5 1.3 1.1 0.85 0.63 0.42 47<br>1.9 1.6 1.4 1.1 0.89 0.63 40<br>2.4 2.1 1.8 1.5 1.2 0.91 33<br>3 2.7 2.3 1.9 1.5 1.1 26<br>3.9 3.5 3 2.5 2 1.5 20<br>5.5 4.8 4.1 3.4 2.7 2.1 15<br>8.6 7.5 6.4 5.4 4.3 3.2 9<br>17.9 15.6 13.4 11.2 8,9 6.7 4<br>20 30 40 50 60 70<br>P| TT<br>rs<br>PF t|<br>|<br>ct mE<br>P|<br>|<br>ft tt<br>P|<br>|<br>dt rT<br>~~PF TE~~<br>~~P|~~ ~~TE~~<br>Pf ff ET<br>Pf<br>|TT<br>pot<br>|t~~T~~|- 63<br>0.99 0.80 0.62 0.44 0.26 55<br>0.85 0.63 0.42 47<br>0.89 0.63 40<br>0.91 33<br>26<br>20<br>15<br>9<br>4|TA| ||Ambient temp. [°C]|||Ambient temp. [°C]||Ambient temp. [°C]| ## **RA ..25 .. ..** ## **RA ..90 .. ..** |0.63 0.53 0.42 0.32<br>0.81 0.69 0.57 0.45 0.33<br>1 0.89 0.75 0.61 0.47 0.33 71<br>1.3 1.2 1 0.83 0.66 0.49 59<br>1.7 1.5 1.3 1.1<br>2.2 1.9 1.7 1.4 1.1<br>3.1 2.7 2.3 1.9 1.5 1.2<br>4.8 4.2 3.6<br>10 8.8 7.5 6.3<br>90<br>80<br>70<br>60<br>50<br>40<br>30<br>20<br>10|FT<br>|~~TE~~|FT<br>|~~TE~~|FT<br>|~~TE~~|~~TE~~|~~TE~~|~~TE~~|- - 97<br>- 84<br>1 0.89 0.75 0.61 0.47 0.33 71<br>1.3 1.2 1 0.83 0.66 0.49 59<br>0.85 0.64 47<br>0.83 36<br>26<br>17<br>8<br>ET<br>ee| |---|---|---|---|---|---|---|---| ||0.63 0.53 0.42 0.32<br>FT<br>Pot|0.63 0.53 0.42 0.32<br>FT<br>|<br>Pot<br>||0.63 0.53 0.42 0.32<br>|~~TE~~<br>|<br>||0.63 0.53 0.42 0.32 - - 97<br>~~TE~~<br>||- - 97<br>~~TE~~|- - 97<br>~~TE~~|| ||0.81 0.69 0.57 0.45 0.33<br>FT<br>Pot<br>PT|0.81 0.69 0.57 0.45 0.33<br>FT<br>|<br>Pot<br>|<br>PT|0.81 0.69 0.57 0.45 0.33<br>|~~TE~~<br>|<br>|<br>ee|0.81 0.69 0.57 0.45 0.33<br>~~TE~~<br>|<br>ee|0.81 0.69 0.57 0.45 0.33 - 84<br>~~TE~~|- 84<br>~~TE~~|| ||1 0.89 0.75 0.61 0.47 0.33 71<br>Pot<br>ee<br>PT|1 0.89 0.75 0.61 0.47 0.33 71<br>Pot<br>|<br>ee<br>PT|1 0.89 0.75 0.61 0.47 0.33 71<br>|<br>|<br>ee<br>ee|1 0.89 0.75 0.61 0.47 0.33 71<br>|<br>ee<br>ee|1 0.89 0.75 0.61 0.47 0.33 71<br>ee|1 0.89 0.75 0.61 0.47 0.33 71<br>ee|| ||1.3 1.2 1 0.83 0.66 0.49 59<br>ee<br>PT|1.3 1.2 1 0.83 0.66 0.49 59<br>ee<br>PT<br>||1.3 1.2 1 0.83 0.66 0.49 59<br>ee<br>ee<br>|ET|1.3 1.2 1 0.83 0.66 0.49 59<br>ee<br>ee<br>ET|1.3 1.2 1 0.83 0.66 0.49 59<br>ee<br>ET|1.3 1.2 1 0.83 0.66 0.49 59<br>ee<br>ET|| ||1.7 1.5 1.3 1.1<br>PT<br>ee<br>P||1.7 1.5 1.3 1.1<br>PT<br>|<br>ee<br>P||1.7 1.5 1.3 1.1<br>ee<br>|ET<br>ee<br>ee|1.7 1.5 1.3 1.1 0.85 0.64 47<br>ee<br>ET<br>ee<br>eeee|0.85 0.64 47<br>ET<br>ee<br>ee|0.85 0.64 47<br>ET<br>ee<br>ee|| ||2.2 1.9 1.7 1.4 1.1<br>ee<br>ee<br>P||2.2 1.9 1.7 1.4 1.1<br>ee<br>ee<br>P|<br>tT|2.2 1.9 1.7 1.4 1.1<br>ee<br>ee<br>ee<br>tT|2.2 1.9 1.7 1.4 1.1<br>ee<br>ee<br>eeee<br>|2.2 1.9 1.7 1.4 1.1 0.83 36<br>ee<br>ee<br>ee<br>|0.83 36<br>ee<br>ee<br>ee<br>|| ||3.1 2.7 2.3 1.9 1.5 1.2<br>P|<br>Pf|3.1 2.7 2.3 1.9 1.5 1.2<br>P|<br>tT<br>Pf<br>||3.1 2.7 2.3 1.9 1.5 1.2<br>ee<br>tTE<br>|<br>ET|3.1 2.7 2.3 1.9 1.5 1.2<br>eeee<br>E<br>ET|3.1 2.7 2.3 1.9 1.5 1.2<br>ee<br>ET<br>ET|3.1 2.7 2.3 1.9 1.5 1.2 26<br>ee<br>T|| ||4.8 4.2 3.6<br>P|<br>Pf|4.8 4.2 3.6<br>P|<br>tT<br>Pf<br>||4.8 4.2 3.6 3<br>ee<br>tTE<br>|<br>ET<br>ee|3 2.4 1.8<br>eeee<br>E<br>ET<br>ee|2.4 1.8<br>ee<br>ET<br>ET|2.4 1.8 17<br>ee<br>T|| ||10 8.8 7.5 6.3<br>Pf<br>e|10 8.8 7.5 6.3<br><br>Pf<br>|<br>e|10 8.8 7.5 6.3<br>E<br>|<br>ET<br>ee<br>ee|10 8.8 7.5 6.3 5<br>E<br>ET<br>e<br>ee|5 3.8<br>ET<br>ET<br>e|3.8 8<br>T<br>e|| ## **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: http://www.productselection.net/PDF/UK/ssr_accessories.pdf ## Heatsink Selector Tool: http://www.productselection.net/heatsink/heatsinkselector.php?LANG=UK **4** Specifications are subject to change without notice (30.09.2019) **RA 24.. .. 06, RA 44.. .. 08, RA 48.. .. 12** ## **A lications pp** This relay is designed for use tant. It is essential that the user in applications in which it is makes sure that cooling is ad - exposed to high surge con di - e quate and that the maximum tions. Care must be taken to junction tem per a ture of the re - ensure proper heatsinking lay is not ex ceed ed. when the relay is to be used at high sustained currents. AdeIf the heatsink is placed in a quate electrical con nec tion small closed room, control between relay terminals and panel or the like, the power cable must be ensured. ## Direct bonding In the design of the outputpower sem i con duc tor di rect Irms = ItONON[2] + tx tOFFON bonding of the copper layer and the ceramic substrate has been applied. This is to en - sure uninhibited heat transfer Ex: RA 24 50 -D 06: and high thermal fa tigue Load current = 45 A strength. tON = 30 s t OFF = 15 s The relay has been designed for applications requiring large numbers of load cycles. 45[2] x 30 Power dissipation Irms = 30 + 15 The power dissipation for in - ter mit tent use is calculated according to the following for - The rms current will be 36.7 A. If the heatsink is placed in a small closed room, control and high thermal fa tigue panel or the like, the power strength. dissipation can cause the ambient temperature to rise. The relay has been designed The heatsink is to be calfor applications requiring larculated on the basis of the ge numbers of load cycles. ambient temperature and the increase in temperature. ## **Thermal characteristics** The thermal design of Solid State Relays is very im por - The power dissipation for in - ter mit tent use is calculated according to the following for - mu la: **==> picture [242 x 121] intentionally omitted <==** **----- Start of picture text -----**<br> 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> **==> picture [54 x 26] intentionally omitted <==** **----- Start of picture text -----**<br> ON<br>OFF<br>ton toff<br>**----- End of picture text -----**<br> ## **Thermal S ec i fi ca tions p** |**RA ..25 .. ..**|**RA ..25 .. ..**||**RA ..50 .. .. **||**RA ..90 .. ..**| |---|---|---|---|---|---| |Operating temperature -20|Operating temperature -20o to +70°C||-20o to +70°C||-20o to +70°C| ||(-4° to +158°F)||(-4° to +158°F)||(-4° to +158°F)| |Storage temperature -40|Storage temperature -40o to +100°C||-40o to +100°C||-40o to +100°C| ||(-40° to +212°F)||(-40° to +212°F)||(-40° to +212°F)| |Junction temperature ≤ 125|erature ≤ 125oC(≤257°F)||≤ 125oC(≤257°F)≤ 125|≤ 125|≤ 125oC(≤ 257°F)| |Rth junction to case ≤ 1.25|unction to case ≤ 1.25oC/W||≤ 0.65oC/W||≤ 0.3oC/W| |Rthjunction to ambient ≤ 12|junction to ambient ≤ 12oC/W||≤ 12oC/W||≤ 12oC/W| ## **Environmental S ecifications p** |Pollution degree|2(non-conductivepollution withpossibilites of condensation)| |---|---| |EU RoHS compliant|Yes| |China RoHS compliant|Refer to Environmental Information(Page 6)| **5** Specifications are subject to change without notice (30.09.2019) **RA 24.. .. 06, RA 44.. .. 08, RA 48.. .. 12** ## **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|Toxic or Harardous Substances and Elements|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. |(Pb)|(Hg)|(Cd)|(Cr(Vl))|(PBB)|(PBDE)| |---|---|---|---|---|---| |x|O|O|O|O|O| **==> picture [52 x 40] intentionally omitted <==** **----- Start of picture text -----**<br> 25<br>**----- End of picture text -----**<br> **6** Specifications are subject to change without notice (30.09.2019) **RA 24.. .. 06, RA 44.. .. 08, RA 48.. .. 12** ## **Accessories** - Graphite thermal pad with adhesive on one side - Type KK071CUT - Dimensions: 35 x 43 x 0.25 mm - Packing quantity: 50 pcs. All accessories can be ordered pre-assembled with Solid State Relays. Other accessories include DIN rail adaptors and varistors For futher information refer to Accessories datasheets at: www.productselection.net/PDF/UK/SSR_Accessories.pdf **7** Specifications are subject to change without notice (30.09.2019)
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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Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 540,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →