RK2A60D50C

**RK** 

## **RK** 

## **2-pole solid state relays** 

## **Benefits** 

- **Space savings.** The RK series consists of two solid state relays contained in one housing having a product width of 45 mm. 

- **Fast installation.** The RK solid state relay is ready for mounting to panel chassis or heatsink as the backplate is equipped with a pre-attached thermal interface. 

- **Easy wiring.** The RK..P models are equipped with a pluggable spring terminal for easy and fast wiring of control connections. 

- **Low equipment downtime.** The output of each pole is protected against over-voltages with an integrated transil. 

## **Description** 

The RK series consists of 2-pole solid state relays contained in one housing with the possibility to control each pole independently (RKD2.. models) or both poles together (RK2.. models). Ratings for both versions go up to 600 VAC, 75 AAC per pole. 

- **Long lifetime.** Wire bonding technology reduces thermal and mechanical stresses of the output chips allowing a larger number of operational cycles compared to other assembly technologies. 

- **User friendly.** LED indication per pole for visual indication of control status. 

- The RK 

- **Food & Beverage certification conformance.** is certified for 100,000 cycle endurance test according to UL508. 

The RK..C models have control termination through a 2.54 mm pitch connector. Terminated cables to mate with the RK..C are available and have to be ordered separately. The RK..P models have control termination with a 5.08 mm pitch plug connector. In this case, the control plug is shipped with the solid state relay. 

## **Applications** 

Plastic extrusion machines, thermoforming machines, blow moulding machines, coffee machines, electrical ovens, vending machines, soldering ovens, dryers, climatic chambers, air handling units, plastic sealing machines, shrink tunnels, etc. 

## **Main features** 

- 2-pole AC solid state relay with either independent control for each pole or common control 

- Zero cross or instant on switching 

- 4-32 VDC control voltage 

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## **RK** 

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## **References** 

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Order code<br>RK   2   D<br>Enter the code option instead of  . Refer to the selection guide section for valid part numbers.<br>Code Option Description Comments<br>RK - Solid State Relay (RK)<br>D Dual control (independent control for each pole)<br>- Common control for the two poles<br>2 - 2-pole<br>A Switching mode: zero cross (ZC)<br>B Switching mode: instant on (IO) For RK..60 only<br>23 Rated voltage: 230 VAC (24-265 VAC) 50/60 Hz For RKD2A only<br>60 Rated voltage: 600 VAC (42-660 VAC) 50/60 Hz<br>D -<br>50 Rated current / pole (with heatsink): 50 AAC<br>51 Rated current / pole (with heatsink): 50 AAC high l [2] t For RK..A only<br>75 Rated current / pole (with heatsink): 75 AAC For RK..60 only<br>C Control termination: 2.54 mm pitch connector pins<br>P Control termination: 5.08 mm pitch plug connector<br>X30 Bulk packaging Optional<br>**----- End of picture text -----**<br>


## **Selection guide: RKD2** 

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Rated output  Rated operational current (I²t)<br>Control Control<br>voltage,  50 AAC 50 AAC 75 AAC<br>voltage termination<br>Switching mode (1500 A [2] s) (3000 A [2] s) (9800 A [2] s)<br>Connector pins RKD2A23D50C RKD2A23D51C -<br>230 VAC, ZC 4-32 VDC Plug RKD2A23D50P RKD2A23D51P -<br>Connector pins RKD2A60D50C RKD2A60D51C RKD2A60D75C<br>600 VAC, ZC 4-32 VDC<br>Plug RKD2A60D50P RKD2A60D51P RKD2A60D75P<br>Connector pins RKD2B60D50C - RKD2B60D75C<br>600 VAC, IO 4-32 VDC Plug RKD2B60D50P - RKD2B60D75P<br>**----- End of picture text -----**<br>


## **Selection guide: RK2** 

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Rated output  Rated operational current (I²t)<br>Control Control<br>voltage,  50 AAC 50 AAC 75 AAC<br>voltage termination<br>Switching mode (1500 A [2] s) (3000 A [2] s) (9800 A [2] s)<br>Connector pins RK2A60D50C RK2A60D51C RK2A60D75C<br>600 VAC, ZC 4-32 VDC<br>Plug RK2A60D50P RK2A60D51P RK2A60D75P<br>600 VAC, IO 4-32 VDC Plug RK2B60D50P - RK2B60D75P<br>**----- End of picture text -----**<br>


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## **Selection guide: RK2D..X30** 

|**Rated output**|**Control**|**Control**|**Rated operational current (I²t)**|
|---|---|---|---|
|**voltage,**<br>**Switching mode**|**voltage**|**termination**|**50 AAC**<br>**(3000 A2s)**|
|**600 VAC, ZC**|4-32 VDC|Connector pins|**RKD2A60D50CX30**|



## **Selection guide: RK2..X30** 

|**Rated output**<br>**voltage,**<br>**Switching mode**|**Control**<br>**voltage**|**Control**<br>**termination**|**Rated operational current (I²t)**|
|---|---|---|---|
||||**50 AAC**<br>**(3000 A2s)**|
|**600 VAC, ZC**|4-32 VDC|Connector pins|**RK2A60D50CX30**|
|||Plug|**RK2A60D50PX30**|



## **Carlo Gavazzi compatible components** 

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Description Component code Notes<br>Control plugs RK4MT, RK2MT Spring plugs for RK..P, packing qty.: 10 pcs.<br>Cables RCK4-100-1 RCK2-100-1 Cable accessory for RK..C<br>Heatsinks RHS Heatsinks and fans<br>Screw kits SRWKITM5X10MM Packing qty.: 20 pcs.<br>Fork terminals RM635FK, RM635FKP Packing qty.: 10 pcs.<br>Touch protection covers RKIP20 Packing qty.: 10 pcs.<br>**----- End of picture text -----**<br>


## **Further reading** 

|**Further reading**||
|---|---|
|**Information**|**Where to fnd it**|
|Online heatsink selector tool|https://gavazziautomation.com/nsc/HQ/EN/solid_state_relays|



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**RK** 

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## **Structure** 

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RK..C RK..P<br>1/L1<br>3/L2<br>A1(+)<br>LEDs<br>A2(-)<br>B1(+)<br>B2(-)<br>2/T1<br>4/T2<br>**----- End of picture text -----**<br>


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Function<br>Element Component<br>RKD2 RK2<br>1/L1 Mains connection for Pole A<br>2/T1 Load connection for Pole A<br>Power connection<br>3/L2 Mains connection for Pole B<br>4/T2 Load connection for Pole B<br>A1(+) Control signal for Pole A Control signal for Pole A & B<br>A2(-) Ground for Pole A Ground for Pole A & B<br>Control connection<br>-<br>B1(+) Control signal for Pole B<br>B2(-) Ground for Pole B -<br>LEDs LED indicators LED ON when control input is applied<br>**----- End of picture text -----**<br>


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**RK** 

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## **Features** 

## **General data** 

|**Material**|PA66, RAL7035|PA66, RAL7035|
|---|---|---|
|**Weight**|RK..C:<br>RKD2..P:<br>RK2..P:|approx. 101 g<br>approx. 106 g<br>approx. 102 g|
|**Touch protection**|IP20||
|**Overvoltage category**|III, 6 kV (1.2/50 μs) rated impulse withstand voltage||
|**Isolation**|Input to Output:<br>Input and Output to Case:|4000 Vrms<br>4000 Vrms|
|**LED indication**|Continously ON Green LED when control input is applied||



Note: in the case of the RKD2 models, the two LED indications represent the control status of each independent control. In the case of the RK2 models, the two LEDs represent the status of the common control input and hence both LEDs are ON when the control input is applied to the RK2 and both LEDs are OFF when the control input is removed. 

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**RK** 

## **Dimensions** 

**Fig. 1** _RKD2..C_ 

**Fig. 2** _RKD2..P_ 

Dimensions in mm unless otherwise noted. Tolerances +/- 0.5 mm. 

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## **Performance** 

## **Output specifications** 

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RK..23..50 RK..60..50 RK..23..51 RK..60..51 RK..60..75<br>Operational voltage range,<br>24 - 265 VAC 42 - 660 VAC 24 - 265 VAC 42 - 660 VAC 42 - 660 VAC<br>Ue<br>Max. operational current per<br>50 AAC 75 AAC<br>pole [1] : AC-51 rating<br>Max. operational current per<br>12 AAC<br>pole [1] : AC-53a rating<br>Operational frequency range 45 - 65 Hz<br>Blocking voltage 600 Vp 1200 Vp 600 Vp 1200 Vp 1200 Vp<br>Output protection Integrated transil<br>Latching voltage<br> ≤ 20V<br>(across L-T)<br>Leakage current @ rated<br> ≤ 3 mAAC<br>voltage<br>Minimum operational current 250 mAAC 400 mAAC<br>Repetitive overload current<br>< 125 AAC < 130 AAC < 150 AAC<br>(t=1s)<br>Non-repetitive surge current<br>550 Ap 775 Ap 1400 Ap<br>(t=10ms)<br>I [2] t for fusing (t=10ms), min. 1500 A [2] s 3000 A [2] s 9800 A [2] s<br>Power factor [2] > 0.5 @ rated voltage<br>Critical dV/dt<br>1000 V/μs<br>(@ Tj init = 40˚C)<br>Endurance testing acc. to<br>100,000 cycles<br>UL508<br>**----- End of picture text -----**<br>


Notes: 

1. Max. rated current with suitable heatsink. Refer to heatsink selection tables. 

2. Transient voltages exceeding the SSR rated blocking voltage will cause the SSR output to switch ON even if control signal is OFF. This occurrence will last as long as the transient voltage level is higher than the specified blocking voltage of the SSR. 

## **Input specifications** 

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RKD2 RK2<br>Control voltage range: A1-A2, B1-B2 4 - 32 VDC<br>Pick-up voltage 3.8 VDC<br>Drop-out voltage 1.0 VDC<br>Maximum reverse voltage 32 VDC<br>1/2 cycle (RK A)<br>Max. response time pick-up<br>0.1 ms (RK B)<br>Response time drop-out 1/2 cycle<br>Maximum input current < 12 mA per pole < 24 mA<br>**----- End of picture text -----**<br>


Note: control range below -25°C is 5.5 - 32 VDC 

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## **Input current vs. input voltage** 

## **RKD2..** 

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12<br>11<br>10<br>9<br>8<br>7<br>6<br>4 6 8 10 12 14 16 18 20 22 24 26 28 30 32<br>Input voltage (VDC)Input voltage (VDC)<br>Input current (mADC)<br>Input current (mADC)<br>**----- End of picture text -----**<br>


**Fig. 3** _RKD2 input current vs. input voltage_ 

## **RK2..** 

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24<br>22<br>20<br>18<br>16<br>14<br>12<br>10<br>8<br>6<br>4 6 8 10 12 14 16 18 20 22 24 26 28 30 32<br>Input voltage (VDC)Input voltage (VDC)<br>Input current (mADC)<br>Input current (mADC)<br>**----- End of picture text -----**<br>


**Fig. 4** _RK2 input current vs. input voltage_ 

## **Output power dissipation** 

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80<br>RK..75<br>70<br>60<br>RK..50<br>RK..51<br>50<br>40<br>30<br>20<br>10<br>0<br>0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75<br>Load current per pole in AACrms<br>Power dissipation per pole in W<br>**----- End of picture text -----**<br>


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**RK** 

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## **Heatsink selection** 

Thermal resistance [°C/W] of RK..50.. 

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Load  Ambient temperature [°C]<br>current<br>per pole<br>AC-51,  20 30 40 50 60 70 80<br>[A]<br>50 0.72 0.61 0.50 0.39 0.28 0.18 -<br>45 0.87 0.74 0.61 0.48 0.36 0.25 0.13<br>40 1.0 0.91 0.75 0.61 0.47 0.33 0.19<br>35 1.3 1.1 0.95 0.77 0.60 0.44 0.27<br>30 1.7 1.4 1.2 1.0 0.7 0.58 0.39<br>25 2.2 1.9 1.6 1.3 1.0 0.80 0.55<br>20 3.2 2.7 2.3 1.9 1.5 1.1 0.81<br>15 5.3 4.4 3.6 2.9 2.3 1.7 1.2<br>10 12.4 9.6 7.5 5.8 4.4 3.3 2.3<br>5 nh nh nh nh 17.8 11.0 6.9<br>**----- End of picture text -----**<br>


Thermal resistance [°C/W] of RK..51.. 

Thermal resistance [°C/W] of RK..75.. 

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Load  Ambient temperature [°C] Load  Ambient temperature [°C]<br>current  current<br>per pole  per pole<br>AC-51,  20 30 40 50 60 70 80 AC-51,  20 30 40 50 60 70 80<br>[A] [A]<br>50 0.85 0.73 0.61 0.49 0.38 0.27 0.16 75.0 0.53 0.45 0.38 0.30 0.23 0.15 -<br>45 1.0 0.87 0.73 0.59 0.46 0.34 0.21 67.5 0.64 0.55 0.46 0.37 0.28 0.20 0.12<br>40 1.2 1.0 0.88 0.72 0.57 0.42 0.28 60.0 0.78 0.67 0.56 0.46 0.36 0.26 0.16<br>35 1.5 1.2 1.0 0.90 0.71 0.53 0.36 52.5 0.96 0.83 0.70 0.58 0.45 0.34 0.22<br>30 1.9 1.6 1.3 1.1 0.91 0.69 0.48 45.0 1.2 1.0 0.89 0.74 0.59 0.44 0.30<br>25 2.5 2.1 1.8 1.5 1.2 0.92 0.65 37.5 1.5 1.3 1.1 0.97 0.78 0.60 0.42<br>20 3.5 3.0 2.5 2.0 1.6 1.2 0.92 30.0 2.2 1.9 1.6 1.3 1.0 0.83 0.60<br>15 5.7 4.8 3.9 3.2 2.5 1.9 1.4 22.5 3.4 2.9 2.4 2.0 1.6 1.2 0.91<br>10 13.4 10.3 8.0 6.1 4.7 3.5 2.4 15.0 6.5 5.4 4.4 3.5 2.8 2.1 1.5<br>5 nh nh nh nh 18.7 11.4 7.1 7.5 nh nh 16.0 11.3 8.1 5.7 3.9<br>**----- End of picture text -----**<br>


Notes: 

- The indicated thermal resistance values are applicable only for the RK with the pre-attached thermal interface. 

- ‘nh’ means no heatsink necessary. The SSR should still be tightened to a surface to ensure optimal thermal dissipation. 

## **Thermal data** 

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RK..50 RK..51 RK..75<br>Operating temperature -40°C to 80°C (-40°F to 176°F)<br>Storage temperature -40°C to 100°C (-40°F to 212°F)<br>Max. junction temperature < 120°C (248°F) < 115°C (239°F)<br>Junction to heatsink thermal resistance,<br>2-poles: 0.25 °C/W 2-poles: 0.2 °C/W 2-poles: 0.16 °C/W<br>Rthjs (including pre-attached thermal  1-pole: 0.5 °C/W 1-pole: 0.4 °C/W 1-pole: 0.32 °C/W<br>interface)<br>**----- End of picture text -----**<br>


Note: the indicated thermal resistance Rthjs (2-poles) is applicable when both poles are utilised. If only one of the poles is used, the applicable Rthjs is the Rthjs indicated for 1-pole. 

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## **Applications** 

Thermal stress will reduce the lifetime of the solid state relay. It is hence necessary to select an appropriate heatsink to ensure that the maximum junction temperature of the solid state relay is not exceeded. Surrounding temperature, load current and duty cycle have to be taken into account. The Heatsink Selection tables as well as the Online Heatsink Selector tool on https://gavazziautomation.com/nsc/HQ/EN/solid_state_relays provide indications of the heatsink size necessary to avoid thermal overload. 

Further checks can be done in the application by verification of the heatsink temperature. The maximum allowed heatsink temperature can be calculated as follows: 

Th = Tj - (2 * Pd * Rthjs 2-poles) or Th = Tj - (Pd * Rthjs 1-pole) 

## Where, 

Th = max. heatsink temperature 

Tj = max. junction temperature 

Pd = output power dissipation per pole 

Rthjs = thermal resistance junction to heatsink (including thermal interface), Rthjs 1-pole = 2 * Rthjs 2-poles 

## Example 1: load current through the two poles is identical. 

SSR utilised is the RKD2A60D50P with a load current of 40Arms per pole. The maximum heatsink temperature shall not exceed: 

Th = Tj - (2 * Pd * Rthjs 2-poles) 

Th = 120°C - (2 * 43W * 0.25°C/W) 

Th = 98.5°C 

## Example 2: load current through the two poles is different. 

SSR utilised is the RKD2A60D50P with a load current of 40Arms through pole 1 and 10Arms through pole 2. In this case, since the load current through the two poles differ, each pole has to be calculated separately (Rthjs 2-poles cannot be utilised). The max. heatsink temperature is the lower heatsink temperature obtained when the calculation is done for each pole independently. Th = Tj - (Pd * Rthjs 1-pole) 

Thpole1 = 120°C - (43W * 0.5°C/W) = 98.5°C 

Th = Tj - (Pd * Rthjs 1-pole) 

Thpole2 = 120°C - (9W * 0.5°C/W) = 115.5°C 

Hence, in this case the max. heatsink temperature shall not exceed 98.5°C. 

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**RK** 

**Compatibility and conformance** > **Approvals** ~~CEAL G B~~ LVD: EN/IEC 60947-4-3 EMCD: EN/IEC 60947-4-3 EE: EN 60947-4-3 **Standards compliance** EMC: EN 60947-4-3 cURus: UL508 recognized (E80573), NRNT2, NRNT8 CSA: C22.2 No.14 (204075) VDE: VDE 0660-109 

|**Electromagnetic compatibility (EMC) - Immunity**|**Electromagnetic compatibility (EMC) - Immunity**|
|---|---|
|**Electrostatic discharge (ESD)**|EN/IEC 61000-4-2<br>8 kV air discharge(PC2), 4 kV contact(PC1)|
|**Radiated radio frequency**|EN/IEC 61000-4-3<br>10 V/m, from 80 MHz to 1 GHz (PC1)<br>10 V/m, from 1.4 to 2 GHz (PC1)<br>3 V/m,from 2 to 2.7 GHz(PC1)|
|**Electrical fast transient (burst)**|**Electrical fast transient (burst)**<br>EN/IEC 61000-4-4<br>Output: 2 kV, 5 kHz (PC2)<br>Input: 1 kV, 5 kHz (PC1)|
|**Conducted radio frequency**|EN/IEC 61000-4-6<br>10 V/m,from 0.15 to 80 MHz(PC1)|
|**Electrical surge**|EN/IEC 61000-4-5<br>Output, line to line: 1 kV (PC2)<br>Output, line to earth: 2 kV (PC2)<br>Input, line to line: 500 V (PC2)<br>Input, line to earth: 500 V(PC2)|
|**Voltage dips**|EN/IEC 61000-4-11<br>0% for 0.5, 1 cycle (PC2)<br>40% for 10 cycles (PC2)<br>70% for 25 cycles (PC2)<br>80% for 250 cycles(PC2)|
|**Voltage interruptions**|EN/IEC 61000-4-11<br>0% for 5000 ms(PC2)|



Notes: 

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

- 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. 

- Performance Criteria 1 (PC1):  No degradation of performance or loss of function is allowed when the product is operated as intended. 

- Performance Criteria 2 (PC2):   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 (PC3): Temporary loss of function is allowed, provided the function can be restored by manual operation of the controls. 

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## **Filter connection diagram (per pole)** 

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**----- Start of picture text -----**<br>
L T<br>Phase<br>SSR<br>**----- End of picture text -----**<br>


Phase / Neutral 

## **Filtering** 

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**----- Start of picture text -----**<br>
Part number Suggested filter for EN 55011 Class A  Maximum heater current [AAC]<br>compliance (per pole)<br>no filter needed 9<br>RK(D)2A23D50 150nF / 275V / X1 25<br>330nF / 275V / X1 50<br>no filter needed 10<br>RK(D)2A23D51 150nF / 275V / X1 25<br>330nF / 275V / X1 50<br>no filter needed 7.5<br>RK(D)2A60D50 150nF / 760V / X1 25<br>330nF / 760V / X1 40<br>no filter needed 5<br>RK(D)2A60D51 220nF / 760V / X1 30<br>220nF / 760V / X1 40<br>no filter needed 5<br>RK(D)2A60D75 330nF / 760V / X1 25<br>470nF / 760V / X1 40<br>220nF / 760V / X1 25<br>RK(D)2B60D50<br>330nF / 760V / X1 40<br>330nF / 760V / X1 25<br>RK(D)2B60D75<br>470nF / 760V / X1 40<br>**----- End of picture text -----**<br>


For class B compliance contact your Carlo Gavazzi representative. 

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## **Environmental specifications** 

**Relative humidity** 95% non-condensing @ 40°C **Pollution degree** 2 (non-conductive pollution with possibilities of condensation) 0-1000m. Above 1000m derate linearly by 1% of FLC per 100m up to a maximum of **Installation altitude** 2000m **Vibration resistance** 5g / axis (2-100Hz, IEC60068-2-6, EN 50155, EN 61373) **Impact resistance** 15/11 g/ms (EN 50155, EN 61373) **EU RoHS compliant** Yes **China RoHS** 25 UL 94 V0 **UL flammability rating (housing) Glow wire ignition temperature, Glow wire flammability index** Conforms to EN 60335-1 requirements 

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. 

||**Toxic or Harardous Substances and Elements**|**Toxic or Harardous Substances and Elements**|**Toxic or Harardous Substances and Elements**|**Toxic or Harardous Substances and Elements**|**Toxic or Harardous Substances and Elements**|**Toxic or Harardous Substances and Elements**|
|---|---|---|---|---|---|---|
|**Part Name**|Lead<br>(Pb)|Mercury<br>(Hg)|Cadmium<br>(Cd)|Hexavalent<br>Chromium<br>(Cr(Vl))|Polybrominat-<br>ed biphenyls<br>(PBB)|Polybromi-<br>nated diphenyl<br>ethers (PBDE)|
|**Power Unit**<br>**Assembly**|x|O|O|O|O|O|
|O: Indicates that said hazardous substance contained in homogeneous materials fot this part are below the limit<br>requirement of GB/T 26572.<br>X: Indicates that said hazardous substance contained in one of the homogeneous materials used for this part is above<br>the limit requirement of GB/T 26572.|||||||



## 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 

||有毒或有害物质与元素|有毒或有害物质与元素|有毒或有害物质与元素|有毒或有害物质与元素|有毒或有害物质与元素|有毒或有害物质与元素|
|---|---|---|---|---|---|---|
|零件名称|铅<br>(Pb)|汞<br>(Hg)|镉<br>(Cd)|六价铬<br>(Cr(Vl))|多溴化联苯<br>(PBB)|多溴联苯醚<br>(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。<br>X: 此零件某种材料中含有的该有害物高于GB/T 26572的限定。|||||||



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**RK** 

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## **Short circuit protection, co-ordination type 2 (per pole)** 

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Prospective short  Ferraz Shawmut (Mersen) Siba<br>Voltage<br>Part No. circuit current  Max fuse  Max fuse<br>[kArms] size [A] Part number size [A] Part number [VAC]<br>gR (GRC) 22x58<br>50 142 06.50<br>RK..50 10 50 FR22UD69V50T 50 600<br>Holder: 51 060 05.xS<br>Holder: CMS22xI<br>gR (GRC) 22x58<br>50 142 06.63<br>RK..51 10 63 FR22UD69V63T 63 600<br>Holder: 51 060 05.xS<br>Holder: CMS22xI<br>gR (GRC) 22x58<br>50 142 06.100<br>RK..75 10 80 FR22GR69V80T 100 600<br>Holder: 51 060 05.xS<br>Holder: CMS22xI<br>**----- End of picture text -----**<br>


Where ‘x’ in Holder reference signifies the no. of poles. 

## **Connection diagrams** 

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Phase L1<br>Phase / Neutral L2<br>PE L3<br>* N<br>PE<br>**----- End of picture text -----**<br>


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Control input A (A1-A2) activates pole L1-T1 and control input B (B1-B2) activates pole L2-T2 for the RKD2.. 

Control input A (A1-A2) activates both pole L1-T1 and pole L2-T2 for the RK2.. 

- depends on system requirements 

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**RK** 

## **Functional diagram** 

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Fig. 5  RKD2<br>**----- End of picture text -----**<br>


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Fig. 6  RK2<br>**----- End of picture text -----**<br>


## **Installation** 

**Fig. 7** _Remove cover before mounting on the panel chassis or heatsink._ 

**Fig. 8** _Tighten screws alternately to max. 0.5 Nm and then continue to max. 2.0 Nm._ 

**Fig. 9** _Mount heatsink with fins in the vertical orientation to guarantee the best possible airflow through the heatsink._ 

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**RK** 

## **Connection specifications** 

||**1/L1, 2/T1, 3/L2, 4/T2**<br>**(RK..C, RK..P)**|**1/L1, 2/T1, 3/L2, 4/T2**<br>**(RK..C, RK..P)**|**A1, A2, B1, B2**<br>**(RK..P)**|
|---|---|---|---|
||eam<br>ee|qn<br>ices||<br>||
|**Mounting screws**<br>**(SSR to heatsink)**|M5, not provided with SSR<br>(refer to SRWKITM5X10MM in the References section)|||
|**Mounting torque**<br>**(SSR to heatsink)**|1.5 - 2.0 Nm (13.3 - 17.7 lb-in)|||
|**Conductors**|Use 75˚C copper (Cu) conductors||Use 60/75˚C copper (Cu)<br>conductors|
|**Stripping length**|12 mm||8-9 mm|
|**Connection type**|M4 screw with captivated washer||Spring|
|**No. of positions**|-<br>-||4 (RKD2..)<br>2 (RK2..)|
|**Wire entry**|-||Top|
|**Rigid (solid & stranded)**<br>**UR/CSA rated data**|2 x 2.5.. 6.0 mm2<br>2 x 14.. 10 AWG|1 x 2.5.. 6.0 mm2<br>1 x 14.. 10 AWG|0.5.. 2.5 mm2<br>26.. 12 AWG|
|**Flexible with or without end**<br>**sleeve**|2 x 1.0.. 2.5 mm2<br>2 x 2.5.. 6.0 mm2<br>2 x 18.. 14 AWG<br>2 x 14.. 10 AWG|1 x 1.0.. 6.0 mm2<br>1 x 14.. 10 AWG|0.5.. 2.5 mm2<br>26.. 12 AWG|
|**Flexible with end sleeve**<br>**using TWIN ferrules**|-||0.5.. 1.0 mm2|
|**Torque specifications**|Pozidrive bit 2 (PZ2)<br>UL: 2.0 Nm (17.7 lb-in)<br>IEC: 1.5 - 2.0 Nm (13.3 - 17.7 lb-in)||-|
|**Aperture for termination lug**|12.5 mm, lug thickness shall not exceed 4 mm||-|



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## **RK** 

|**Control termination**||
|---|---|
|**RK..C**|**RKD2**<br>**RK2**|
|**Connection type**|4 pins, pitch 2.54mm square pin 0.64' with<br>integrated lockable connector<br>2 pins, pitch 2.54mm square pin 0.64' with<br>integrated lockable connector|
|**Mating options**|3-640441-2 with connector strain relief cover 643075-2, from TE Connectivity<br>3-640441-4 with connector strain relief cover 643075-4, from TE Connectivity|
|**Accessories**|RCK4-100-1, RCK2-100-1 terminated cable|
|||
|**RK..P**|**RKD2**<br>**RK2**|
|**Connection type**|4-way, 4-positions, pitch 5.08mm for plug-<br>gable terminal<br>4-way, 2-positions, pitch 5.08mm for plug-<br>gable terminal|
|**Mating options**|Plug provided with SSR; Other options noted in section Screw plugs, Spring plugs|
|**Accessories**|Plugs also available as Accessories: RK4MT for RKD2.., RK2MT for RK2..|



## **Screw plugs** 

|**Cable entry**|**Top**|**Left**|**Right**|**Twin, sides**|
|---|---|---|---|---|
||||||
|**Manufacturer**|Phoenix Contact||||
|**Model**|4 positions: MSTBT<br>2,5/ 4-ST-5,08|4 positions: MVSTBW<br>2,5/ 4-ST-5,08|4 positions: MVSTBR<br>2,5/ 4-ST-5,08|4 positions: TVMSTB<br>2,5/ 4-ST-5,08|
||2 positions: MSTBT<br>2,5/ 2-ST-5,08|2 positions: MVSTBW<br>2,5/ 2-ST-5,08|2 positions: MVSTBR<br>2,5/ 2-ST-5,08|2 positions: TVMSTB<br>2,5/ 2-ST-5,08|
|**Reference**|4 positions: 1780002|4 positions: 1792773|4 positions: 1792265|4 positions: 1719024|
||2 positions: 1779987|2 positions: 1792757|2 positions: 1792249|2 positions: 1719008|
|**Wire range**|0.25 - 2.5 mm2||||
|**Screw**|M3||||
|**Stripping length**|7 mm||||
|**Tightening torque**|0.5 - 0.6 Nm||||
|**Product depth with**<br>**mounted connector**|37.2 mm|45.0 mm||44.7 mm|



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Carlo Gavazzi Ltd. 

## **RK** 

|**Cable entry**|**Top**|**Twin, top**|
|---|---|---|
||a<br>:|wy<br>||
|**Manufacturer**|Phoenix Contact||
|**Model**|4 positions: FRONT-MSTB 2,5/ 4-ST-5,08|4 positions: TMSTBP 2,5/ 4-ST-5,08|
||2 positions: FRONT-MSTB 2,5/ 2-ST-5,08|2 positions: TMSTBP 2,5/ 2-ST-5,08|
|**Reference**|4 positions: 1777303|4 positions: 1853036|
||2 positions: 17773280|2 positions: 1853010|
|**Wire range**|0.25 - 2.5 mm2||
|**Screw**|M2.5|M3|
|**Stripping length**|10 mm|7 mm|
|**Tightening torque**|0.5 - 0.6 Nm||
|**Product depth with**<br>**mounted connector**|46.5 mm|40.5 mm|



## **Spring plugs** 

|**Cable entry**|**Top**|**Left**|**Right**|**Twin, top**|
|---|---|---|---|---|
||\<br>=|Lg|-|A|
|**Manufacturer**|Phoenix Contact||||
|**Model**|4 positions: FKCT 2,5/<br>4-ST-5,08|4 positions: FKCVW<br>2,5/ 4-ST-5,08|4 positions: FKCVR<br>2,5/ 4-ST-5,08|4 positions: TFKC 2,5/<br>4-ST-5,08|
||2 positions: FKCT 2,5/<br>2-ST-5,08|2 positions: FKCVW<br>2,5/ 2-ST-5,08|2 positions: FKCVR<br>2,5/ 2-ST-5,08|2 positions: TFKC 2,5/<br>2-ST-5,08|
|**Reference**|4 positions: 1902136|4 positions: 1873676|4 positions: 1873977|4 positions: 1962626|
||2 positions: 1902110|2 positions: 1873650|2 positions: 1873951|2 positions: 1962600|
|**Wire range**|0.25 - 2.5 mm2||||
|**Stripping length**|10 mm||||
|**Product depth with**<br>**mounted connector**|44.6 mm|45.6 mm|45.6 mm|44.7 mm|



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**RK** 

## **Packaging** 

RK...X30 

- Packing qty.: 30 pcs. 

- Weight: 3.03 kg 

COPYRIGHT ©2022. Content subject to change. Download the PDF: https://gavazziautomation.com 

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