20.23.8.230.0000

General Purpose Relay, 20 Series, Power, SPST-NO, SPST-NC, 230 VAC, 16 A

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: FINDER
Product type: Power Relays
Contact Configuration:SPST-NO, SPST-NC; Coil Voltage:230VAC; Contact Current:16A; Product Range:20 Series; Relay Mounting:DIN Rail; Coil Type:-; Contact Voltage VAC:250VAC; Relay Terminals:S
SVHC: No SVHC (04-Feb-2026)
Coil Type: -
Coil Voltage: 230VAC
Product Range: 20 Series
Relay Mounting: DIN Rail
Coil Resistance: 2.5kohm
Contact Current: 16A
Relay Terminals: Screw
Contact Material: Silver Nickel
Contact Voltage VAC: 250V
Contact Voltage VDC: -
Contact Configuration: SPST-NO, SPST-NC

Delivery and price
Units per pack	20
Price	22.99 €
Current stock	25+
Lead time	30 days

Datasheet

## Modular step relays 16 A 

Automation for blinds, grilles and shutters Lighting control in corridors (for hotels, offices and hospitals) Bedroom light control 

Living room light control 

**20 SЕRIES** 

FINDER reserves the right to alter characteristics at any time without notice. FINDER assumes no liability for damage to persons or property, caused as a result of the incorrect use or application of its products. 

**20 SERIES** 

## **1 or 2 Pole 16 A Step relays for direct 35 mm rail (EN 60715) mounting** 

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


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20.22, 24, 26, 27, 28<br>**----- End of picture text -----**<br>


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


- 17.4 mm wide 

- Test button with mechanical indicators 

- Choice of 7 switching sequences 

- AC coils and DC coils 

- Identification label 

- Possible to connect illuminated push buttons with the additional part 026.00 

- 35 mm rail (EN 60715) mount 

- Cadmium free contact material 

## 20.21/22/24/26/27/28/23 

Screw terminal 

- Single phase switch 1 NO (SPST-NO) 

- 35 mm rail (EN 60715) mount 

- Double phase switch 

- 35 mm rail (EN 60715) mount 

- Double phase switch 1NO+1NC (SPST-NO+SPST-NC) 

- 35 mm rail (EN 60715) mount 

## _For UL ratings see:_ 

_“General technical information” page_ V 

For outline drawing see page 5 

|**1 or 2 Pole 16 A Step relays for direct 35 mm**<br>**rail (EN 60715) mounting**<br>• 17.4 mm wide17.4 mm wide<br>• Test button with mechanical indicatorsTest button with mechanical indicators<br>• Choice of 7 switching sequencesChoice of 7 switching sequences<br>• AC coils and DC coilsAC coils and DC coils<br>• Identification labelIdentification label<br>• Possible to connect illuminated push buttonsPossible to connect illuminated push buttons<br>with the additional part 026.00<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>• Cadmium free contact materialCadmium free contact material<br>20.21/22/24/26/27/28/23<br>Screw terminal<br>_For UL ratingsor UL ratings UL ratingsratings see::_<br>_“General technical information” page_V<br>For outline drawing see page 5<br>**Contact specification**<br>Contact configuration|**20.21**<br>• Single phase switch 1 NOSingle phase switch 1 NO<br>(SPST-NO)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>2|**20.21**<br>• Single phase switch 1 NOSingle phase switch 1 NO<br>(SPST-NO)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>2|**20.21**<br>• Single phase switch 1 NOSingle phase switch 1 NO<br>(SPST-NO)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>2|**20.21**<br>• Single phase switch 1 NOSingle phase switch 1 NO<br>(SPST-NO)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>2|**20.21**<br>• Single phase switch 1 NOSingle phase switch 1 NO<br>(SPST-NO)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>2|**20.21**<br>• Single phase switch 1 NOSingle phase switch 1 NO<br>(SPST-NO)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>2|**20.21**<br>• Single phase switch 1 NOSingle phase switch 1 NO<br>(SPST-NO)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>2|**20.21**<br>• Single phase switch 1 NOSingle phase switch 1 NO<br>(SPST-NO)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>2|**20.22, 24, 26, 27, 28**<br>• Double phase switchDouble phase switch<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>2<br>2<br>4|**20.22, 24, 26, 27, 28**<br>• Double phase switchDouble phase switch<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>2<br>2<br>4|**20.22, 24, 26, 27, 28**<br>• Double phase switchDouble phase switch<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>2<br>2<br>4|**20.22, 24, 26, 27, 28**<br>• Double phase switchDouble phase switch<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>2<br>2<br>4|**20.22, 24, 26, 27, 28**<br>• Double phase switchDouble phase switch<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>2<br>2<br>4|**20.22, 24, 26, 27, 28**<br>• Double phase switchDouble phase switch<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>2<br>2<br>4|**20.22, 24, 26, 27, 28**<br>• Double phase switchDouble phase switch<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>2<br>2<br>4|**20.23**<br>• Double phase switchDouble phase switch<br>1NO+1NC (SPST-NO+SPST-NC)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>7<br>!<br>2<br>samp|**20.23**<br>• Double phase switchDouble phase switch<br>1NO+1NC (SPST-NO+SPST-NC)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>7<br>!<br>2<br>samp|**20.23**<br>• Double phase switchDouble phase switch<br>1NO+1NC (SPST-NO+SPST-NC)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>7<br>!<br>2<br>samp|**20.23**<br>• Double phase switchDouble phase switch<br>1NO+1NC (SPST-NO+SPST-NC)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>7<br>!<br>2<br>samp|**20.23**<br>• Double phase switchDouble phase switch<br>1NO+1NC (SPST-NO+SPST-NC)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>7<br>!<br>2<br>samp|**20.23**<br>• Double phase switchDouble phase switch<br>1NO+1NC (SPST-NO+SPST-NC)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>7<br>!<br>2<br>samp|**20.23**<br>• Double phase switchDouble phase switch<br>1NO+1NC (SPST-NO+SPST-NC)<br>• 35 mm rail (EN 60715) mount35 mm rail (EN 60715) mount<br>a<br>=<br>7<br>!<br>2<br>samp|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||1 NO (SPST-NO)<br>Al<br>1<br>7)<br>A2<br>2||||||||2 NO (DPST-N~~O~~)<br>Al<br>1<br>3<br>7)<br>A2<br>2<br>4|||||||1NO+1NC (SPST-~~N~~O+SPST-NC)<br>Al<br>1<br>3<br>r) {<br>A2<br>2<br>4|||||||
|Contact configuration<br>Rated current/Maximum peak current<br>A|~~es~~||1 NO (SPST-NO)<br>~~es~~||1 NO (SPST-NO)<br>16/30<br>~~es~~|~~es~~|~~es~~||~~es~~||2 NO (DP<br>~~es~~|2 NO (DPST-N<br>16/30<br>~~es~~|T-N~~O~~<br>~~es~~|~~O~~)<br>~~es~~|~~es~~|1NO+1NC (SPST-||1NO+1NC (SPST-|1NO+1NC (SPST-~~N~~O+SPST-NC)<br>16/30|O+SPST-NC)|O+SPST-NC)|O+SPST-NC)|
|Rated voltage/<br>Maximum switchinvolta<br>V AC|~~es~~|~~es~~|~~es~~|250/400<br>~~es~~|250/400<br>~~es~~||~~es ~~|||~~es~~|~~es~~|250/400<br>~~es~~|||~~es~~|||250/400|250/400||||
|Maximum switchingvoltage<br>V AC<br>Rated load AC1<br>VA<br>Rated load AC15 (230 V AC)<br>VA|~~es~~<br>~~es~~|~~es~~<br>~~es~~|~~es~~|250/400<br>~~es~~<br>~~es~~|250/400<br>4000<br>750<br>~~es~~<br>~~es~~||~~es~~<br>~~es~~|~~es~~<br>~~es~~|~~es~~<br>~~es~~|~~es~~<br>~~es~~|~~es~~<br>~~es~~|250/400<br>4000<br>750<br>~~es~~<br>~~es~~|||~~es~~<br>~~es~~|||250/400|250/400<br>4000<br>750||||
||||~~es~~<br>~~es~~||||||||||||||||||||
|Rated load AC15 (230 V AC)<br>VA<br>Nominal lamp rating:<br>230 V incandescent/halogen W<br>fluorescent tubes with<br>electronic ballast W<br>fluorescent tubes with<br>electromechanical ballast W<br>CFL W<br>230 V LED W<br>LV halogen or LED with<br>electronic ballast W<br>LV halogen or LED with<br>electromechanical ballast W|750<br>2000<br>~~es~~|~~es~~|~~es~~||750<br>~~es~~||||750<br>2000<br>~~es~~|~~es~~||750<br>~~es~~||||750<br>2000|||750||||
||1000||||||||1000|||||||1000|||||||
||750<br>~~es es~~||||||||750<br>~~es~~|||||||750|||||||
||400<br>~~es es~~<br>~~es~~||||||||400<br>~~es~~<br>~~es~~|||||||400|||||||
||400<br>~~es es~~<br>~~es~~||||||||400<br>~~es~~<br>~~es~~|||||||400|||||||
||400<br>~~es~~||||||||400<br>~~es~~|||||||400|||||||
||800<br>~~es~~||||||||800<br>~~es~~|||||||800|||||||
|Minimum switching load<br>mW (V/mA)|1000 (10/10)<br>~~es~~||||||||1000 (10/10)<br>~~es~~|||||||1000 (10/10)|||||||
|Standard contact material<br>**Coil specification**<br>Nominal voltage (UN)<br>V AC (50/60 Hz)<br>V DC|AgSnO2<br>AgSnO2<br>AgSnO2<br>8 - 12 - 24 - 48 - 110 - 120 - 230 - 240<br>~~eses~~<br>~~eses~~||||||||||||||||||||||
||12 - 24 - 48 - 110<br>~~es~~<br>~~es~~||||||||12 - 24 - 48 - 110<br>~~es~~<br>~~es~~|||||||12 - 24 - 48 - 110|||||||
|Rated power AC/DC<br>VA (50 Hz)/W|6.5/5<br>~~es~~<br>~~es~~||||||||6.5/5<br>~~es~~<br>~~es~~|||||||6.5/5|||||||
|Operating range<br>AC<br>DC<br>**Technical data**<br>Mechanical life AC/DC<br>cycles|(0.85…1.1)UN(50 Hz)/(0.9…1.1)UN(60 Hz)<br>~~eses~~<br>~~et~~||||||||||||||||||||||
||(0.9…1.1)UN<br>300 · 103<br>~~es es~~||||||||(0.9…1.1)UN<br>300 · 103<br>~~es~~|||||||(0.9…1.1)UN<br>300 · 103|||||||
|Electrical life at rated load in AC1<br>cycles|100 · 103<br>~~es es~~||||||||100 · 103<br>~~es~~<br>~~es~~|||||||100 · 103|||||||
|Minimum/Maximum impulse duration|0.1 s/1 h (according to EN 60669)<br>~~es es~~<br>~~es~~||||||||0.1 s/1 h (according to EN 60669)<br>~~es~~<br>~~es~~<br>~~es~~|||||||0.1 s/1 h (according to EN 60669)<br>~~es~~|||||||
|Insulation between coil<br>and contacts(1.2/50µs)<br>kV|4<br>~~es~~||||||||4<br>~~es~~<br>~~**e**e~~|||||||4|||||||
|Ambient temperature range<br>°C|–40…+40<br>~~es~~<br>~~es~~||||||||–40…+40<br>~~es~~<br>~~**e**e~~<br>~~s~~|||||||–40…+40<br>~~es~~|||||||
|Protection category|IP 20<br>~~es~~||||||||IP 20<br>~~**e**e~~<br>~~s~~|||||||IP 20|||||||
|**Approvals**(according to type)|~~es~~<br>CEEAL||||||||~~**e**~~<br>EAL|~~**e**e~~<br>~~s~~<br>EAL©<br>@RINAAdis|||||||||||||



**K** 

**3** 

**20 SERIES** 

## **Ordering information** 

Example:  20 series relay, 35 mm rail (EN 60715) mount, double phase switch, 2 NO 16 A contacts, coil rated at 12 V DC, AgSnO2 contacts. 

**2 0 . 2 2 . 9 . 0 1 2 . 4 0 0 0** 

## **Series** 

## **Type** 

## **Contact material** 

0 =  AgNi 4 =  AgSnO2 

2 =  35 mm rail (EN 60715) mount 

## **No. of poles** 

**Coil voltage** See coil specifications 

1 =  Single phase switch 1 NO (SPST-NO) 

2 =  Double phase switch 2 NO (DPST-NO) 

3 =  Double phase switch 1 NC+ 1 NO (SPST-NO+SPST-NC) 

4 =  4 sequence double phase switch 2 NO (DPST-NO) 

## **Coil version** 

8 =  AC (50/60 Hz) 

9 =  DC 

6 =  3 sequence double phase switch 2 NO (DPST-NO) 

7 = 3 sequence double phase switch 2 NO (DPST-NO) 8 =  4 sequence double phase switch 2 NO (DPST-NO) 

## **Technical data** 

## **Insulation** 

|Dielectric strength<br>between supplyand contacts<br>V AC <br>between open contacts<br>V AC <br>between adjacent contacts<br>V AC <br>**Other data**<br>Power lost to the environment<br>with rated current and coil deenergised W <br>©|3500|3500|3500|3500|
|---|---|---|---|---|
||2000||||
||2000<br> 1.3(20.21,20.23,20.28)<br>2.6(20.22,20.24,20.26,20.27)<br>~~pO~~||||
|Screw torque<br>Nm <br>©|0.8<br>~~pO~~||0.8||
|Max. wire size<br>mm2 <br>AWG|**Coil terminals**<br>~~ee~~||**Contact terminals**<br>~~ee~~||
||solid cable<br>~~ee~~|stranded cable<br>~~ee~~|solid cable<br>~~ee~~|stranded cable|
||1 x 4 / 2 x 2.5<br>~~es~~|1 x 2.5 / 2 x 2.5<br>~~es~~|1 x 6 / 2 x 4<br>~~es~~|1 x 4 / 2 x 2.5|
||1 x 12 / 2 x 14<br>~~es~~<br>~~ee~~|1 x 14 / 2 x 14<br>~~es~~<br>~~ee~~|1 x 10 / 2 x 12<br>~~es~~<br>~~ee~~|1 x 12 / 2 x 14|



If the coil is operated for a prolonged period of time, adequate ventilation of the relays must be provided - suggested gap of 9 mm between adjacent relays. 

## **Coil specifications** 

## **DC version data** 

||**Coil specifications**<br>**DC version data**|
|---|---|
|**K**|Nominal<br>voltage<br>Coil<br>code<br>Operating range<br>ResistanceConsumption<br>Iat UN<br>UN<br>Umin<br>Umax<br>R<br>V<br>V<br>V<br>Ω<br>mA<br>12<br>**9**.012<br>10.8<br>13.2<br>27<br>440<br>24<br>**9**.024<br>21.6<br>26.4<br>105<br>230<br>48<br>**9**.048<br>43.2<br>52.8<br>440<br>110<br>110<br>**9**.110<br>99<br>121<br>2330<br>47<br>**AC version data**<br>Nominal<br>voltage<br>Coil<br>code<br>Operating range<br>ResistanceConsumption<br>Iat UN<br>UN<br>Umin<br>Umax<br>R<br>(50 Hz)<br>V<br>V<br>V<br>Ω<br>mA<br>8<br>**8**.008<br>6.8<br>8.8<br>4<br>800<br>~~es ~~<br>~~oo~~|
||12<br>**8**.012<br>10.2<br>13.2<br>7.5<br>550|
||24<br>**8**.024<br>20.4<br>26.4<br>27<br>275<br>48<br>**8**.048<br>40.8<br>52.8<br>106<br>150<br>110<br>**8**.110<br>93.5<br>121<br>590<br>64<br>120<br>**8**.120<br>102<br>132<br>680<br>54<br>230<br>**8**.230<br>192<br>253<br>2500<br>28<br>240<br>**8**.240<br>204<br>264<br>2700<br>27.5<br>~~ee~~<br>~~ee~~<br>~~eeee~~<br>~~esesse~~|



**Number Sequence Type of steps** 1 2 3 4 ~~eee~~ 20.21 2 20.22 2 ~~series~~ 20.23 2 ~~NY ET~~ Oe ~~Oe~~ 20.24 4 20.26 3 ~~Hae~~ 20.27 3 ~~RENEE]~~ 20.28 4 

**4** 

**20 SERIES** 

**K** 

## **Wiring diagrams** 

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L<br>N<br>Example: 230 V AC supply voltage.<br>**----- End of picture text -----**<br>


**==> picture [185 x 200] intentionally omitted <==**

**----- Start of picture text -----**<br>
L<br>N<br>Example: 24 V AC supply voltage.<br>**----- End of picture text -----**<br>


## **Outline drawings** 

20.21 Screw terminal 

**==> picture [39 x 40] intentionally omitted <==**

**==> picture [112 x 112] intentionally omitted <==**

20.22/24/26/27/28 Screw terminal 

**==> picture [39 x 40] intentionally omitted <==**

**==> picture [113 x 113] intentionally omitted <==**

20.23 Screw terminal 

**==> picture [39 x 39] intentionally omitted <==**

**==> picture [114 x 113] intentionally omitted <==**

**5** 

**20 SERIES** 

## **Accessories** 

## **Module for use with illuminated push-buttons** 

## **Example of wiring diagram of type 026.00** 

## **Type 026.00** 

This module is necessary when using between 1 and a maximum of 15 illuminated push buttons in the coil circuit (Each 1.5 mA max, 230 V AC). It must be connected in parallel to the coil of the relay. 

Sealed construction, 7.5 cm insulated flexible wire termination. 

**==> picture [355 x 157] intentionally omitted <==**

**----- Start of picture text -----**<br>
Adaptor for panel mounting,  17.5 mm wide 020.01<br> 020.01<br>Sheet of marker tags,  plastic, 24 tags, 9 x 17 mm 020.24<br>|<br>Separator for rail mounting,  plastic, 9 mm wide | 022.09<br>**----- End of picture text -----**<br>


**==> picture [25 x 109] intentionally omitted <==**

**----- Start of picture text -----**<br>
020.24<br>022.09<br>**----- End of picture text -----**<br>


**==> picture [10 x 11] intentionally omitted <==**

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


Please see general technical information 

**6**

Updated at June 7, 2026

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