# Signal Converter, Current, Current, Voltage, Digital, Relay, 24 VDC

![Product image](https://novapart.co/image/farnell:3787249/)

**URL**: https://novapart.co/products/2857-550/signal-converter-current-voltage-digital-relay-24
**SKU**: 2857-550
**Manufacturer**: WAGO
**Category**: Automation & Process Control || Signal Conditioning || Signal Converters
**Price**: €359.6800
**Stock**: 10+
**Lead Time**: 57 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (21-Jan-2025) |
| Accuracy % | - |
| Product Range | 2857 |
| Supply Voltage | 24VDC |
| Isolation Input | Isolated |
| No. Of Channels | 1 Channel |
| Output Accuracy | - |
| No. Of Output Channels | - |
| Signal Conditioner Input | Current |
| Signal Conditioner Output | Current, Voltage, Digital, Relay |
| Signal Conditioner Mounting | DIN Rail |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3787249/)

## Data sheet | Item number: 2857-550 

Current signal conditioner; Current input signal; Current and voltage output signal; Digital and relay output; Configuration via software; Supply voltage: 24 VDC; 22.5 mm module width 

www.wago.com/2857-550 

Subject to changes. Please also observe the further product documentation! 

WAGO Kontakttechnik GmbH & Co. KG Hansastr. 27 32423 Minden Phone: +49571 887-0 | Fax: +49571 887-169 Email: info.de@wago.com | Web: www.wago.com 

Do you have any questions about our products? We are always happy to take your call at +49 (571) 887-44222. 

04.08.2021    Page /1 11 

Data sheet | Item number: 2857-550 www.wago.com/2857-550 

## Item description 

## Short description: 

This current signal conditioner measures AC/DC currents up to 100 A, while converting the measured current into an analog standard signal at the output. 

## Features: 

- Both digital signal output and relay with changeover contact react to configured measurement range limits (on/off switching delay and threshold value switch function can be configured with up to two threshold values). 

- Clipping capability for analog signal limitation to output end values 

- Adjustable software filter 

- Input/output response simulation via configuration display 

- Safe 3-way isolation with 3 kV test voltage per EN 61010-1 

## Note: 

- This product is supplied with 24 VDC, which can be commoned using lateral push-in type jumper bars: (6.1) US+ (BR) and (6.2) GND 2 (BR). With this variant, it is necessary to ensure that the maximum permissible total current of 2 A is not exceeded. 

- Additional setting options via WAGO Interface Configuration Software or WAGO Configuration Display 

## Data 

## Technical data 

Subject to changes. Please also observe the further product documentation! 

|WAGO Kontakttechnik GmbH & Co. KG|Do you have any questions about our products?|
|---|---|
|Hansastr. 27|We are always happy to take your call at +49 (571) 887-44222.|
|32423 Minden||
|Phone: +49571 887-0 | Fax: +49571 887-169||
|Email: info.de@wago.com | Web: www.wago.com||



04.08.2021    Page /2 11 

Data sheet | Item number: 2857-550 www.wago.com/2857-550 o ~~e~~ 

## Configuration 

Configuration options 

DIP switch WAGO Interface Configuration Software WAGO Interface Configuration App WAGO Configuration Display 

## Input 

|Input signal type|Current|
|---|---|
|Input signal (current)|AC 0.5 … 100 A DC ±100 A|
|Frequency range|15 … 1000 Hz|
|Input current (max.)|100 A AC/DC|
|Response threshold|500 mA (AC); 250 mA (DC)|
|Resolution (current)|10 mA|



## Output – analog 

|Output signal type|Current|
|---|---|
||Voltage|
|Output signal (voltage)|± 5 V; 0 … 5 V; 1 … 5 V; ± 10 V; 0 … 10 V; 2 … 10 V|
|Output signal (current)|±10 mA; 0 … 10 mA; 2 … 10 mA; ±20 mA; 0 … 20 mA; 4 … 20 mA|
|Load impedance (voltage output)|≥ 1 kΩ|
|Load impedance (current output)|≤ 600 Ω|



## Output – digital 

|Switching voltage (DO) (max.)|Supply voltage (applied): −0.3 V|
|---|---|
|Continuous current (DO) (max.)|100 mA (no internal restriction)|
|Number of switching thresholds (DO)|1 or 2 (adjustable)|
|Configurable rise/fall delay time (DO)|0 … 60 s (via software)|



## Output – relay 

|Dielectric strength, open contact (AC, 1 min)|1 kVrms|
|---|---|
|Number of changeover/switchover contacts|1|
|Contact material (relay)|AgNi + Au|
|Switching voltage (max.)|AC 250 V|
|Limiting continuous current (relay; module assembly)|6 A (≤ 60 °C); 3 A (60 … 70 °C)|
|Dielectric strength, open contact (AC, 1 min)|1 kVrms|
|Pull-in time (typ.)|8 ms|
|Drop-out time (typ.)|4 ms|



Subject to changes. Please also observe the further product documentation! WAGO Kontakttechnik GmbH & Co. KG Do you have any questions about our products? Hansastr. 27 We are always happy to take your call at +49 (571) 887-44222. 32423 Minden Phone: +49571 887-0 | Fax: +49571 887-169 Email: info.de@wago.com | Web: www.wago.com 

04.08.2021    Page /3 11 

## Data sheet | Item number: 2857-550 www.wago.com/2857-550 ~~oe~~ 

|Data sheet | Item number: 2857-550<br>www.wago.com/2857-550<br>~~oe~~||
|---|---|
|Bounce time (typ.)|8 ms|
|Number of switching thresholds (relay)|1 or 2 (adjustable)|
|Configurable rise/fall delay time (relay)|0 … 60 s (via software)|



## Signal processing 

|Measurement method|True RMS measurement; Arithmetic mean value|
|---|---|
|Limit frequency|3.3 kHz|
|Software filter (adjustable)|Moving average value (filter level: 30)|
|Step response (typ.)|60 ms (DC; for software filter 3/default setting); 250 ms (AC)|



## Measurement error 

|Transmission error (max.)|≤ 1 % (of the full scale value)|
|---|---|
|Temperature coefficient|≤ 0.01 %/K|



## Supply 

|Power supply type|24 VDC|||
|---|---|---|---|
|Nominal supply voltage US|DC 24 V|||
|Supply voltage range|±30 %|||
|Power consumption at nominal supply voltage|≤ 50 mA (+ I|DO|)|



## Safety and protection 

|Rated voltage of the measurement circuit connections per EN|AC 300 V||
|---|---|---|
|61010-2-030|||
|Measurement category per EN/UL 61010-2-030|CAT II (input)||
|Note on insulation parameters|The conductor carrying the measurement current must have at least||
||basic insulation for the voltage used.||
||The nominal insulation voltage of the conductor carrying the||
||measurement current must be at least 1390 V|AC or 1390 VDC.|
|||rms|
||The digital output (DO) is at the potential of the supply||
|Protection type|IP20||



## Test voltage 

|Test voltage (input/output/supply)|AC 3 kV; 50 Hz; 1 min|
|---|---|
|Test voltage (measurement circuit/relay output/supply/analog|3 kVAC; 50 … 60 Hz; 1 min|
|output)||
|Prüfspannung (Messkreis/Relaisausgang/Versorgung/Service-|3 kVAC; 50 … 60 Hz; 1 min|



Subject to changes. Please also observe the further product documentati ~~o~~ n! 

|WAGO Kontakttechnik GmbH & Co. KG|Do you have any questions about our products?|
|---|---|
|Hansastr. 27|We are always happy to take your call at +49 (571) 887-44222.|
|32423 Minden||
|Phone: +49571 887-0 | Fax: +49571 887-169||
|Email: info.de@wago.com | Web: www.wago.com||



04.08.2021    Page /4 11 

Data sheet | Item number: 2857-550 www.wago.com/2857-550 ~~oe~~ 

## Schnittstelle ) 

Test voltage (analog output/service interface) 2 kVAC; 50 … 60 Hz; 1 min 

## Insulation parameters per EN/UL 61010-1 

|Line-to-neutral conductor voltage (AC) max.|300 V|
|---|---|
|Overvoltage category|II|
|Pollution degree|2|
|Insulation type (measurement circuit/relay output, supply, analog|Functional insulation|
|output and service interface)||
|Insulation type (analog output/service interface)|Functional insulation|
|Insulation type (relay output/supply/analog output and service|Functional insulation|
|interface)||



## Connection data 

|Connection technology|Push-in CAGE CLAMP®|
|---|---|
|WAGO Connector|picoMAX 5.0<br>®|
|Solid conductor|0.2 … 2.5 mm² / 24 … 12 AWG|
|Fine-stranded conductor|0.2 … 2.5 mm² / 24 … 12 AWG|
|Strip length|9 … 10 mm / 0.35 … 0.39 inch|
|Feedthrough for measurement conductor|Ø 9.5 mm|



## Physical data 

|Width|22.5 mm / 0.886 inch|
|---|---|
|Height from upper-edge of DIN-rail|107 mm / 4.213 inch|
|Depth|105 mm / 4.134 inch|



## Mechanical data 

|Mounting type|DIN-35 rail|
|---|---|
|Material data||
|Fire load|1.644 MJ|
|Weight|102.9 g|
|Environmental requirements||
|Surrounding air temperature (operation)|-40 … 70 °C|
|Surrounding air temperature (storage)|-40 … 85 °C|
|Subject to changes. Please also observe the further product documentation!||
|WAGO Kontakttechnik GmbH & Co. KG|Do you have any questions about our products?|
|Hansastr. 27|We are always happy to take your call at +49 (571) 887-44222.|
|32423 Minden||
|Phone: +49571 887-0 | Fax: +49571 887-169||
|Email: info.de@wago.com | Web: www.wago.com||



04.08.2021    Page /5 11 

## Data sheet | Item number: 2857-550 www.wago.com/2857-550 ~~oe~~ 

Temperature range of the connecting cable according to EN 61010≥ (T + 10 K) surrounding air 2-201 Temperature range of connecting cable per UL 61010-2-201 (min.) 90 °C 

## Standards and specifications 

|Conformity marking|CE|
|---|---|
|EMC immunity to interference|EN 61000-6-2; EN 61326-2-3; EN 50121-3-2|
|EMC emission of interference|EN 61000-6-4; EN 61326-2-3; EN 50121-3-2|
|Standards/Specifications|EN 61010-1|
||EN 61373|



## Commercial data 

|Product Group|6 (Interface Electronics)|
|---|---|
|PU (SPU)|1 Each|
|Packaging type|bag|
|Country of origin|DE|
|GTIN|4050821676997|
|Customs tariff number|85437090300|



## Approvals / Certificates 

UL-Approvals 

||||Certificate|
|---|---|---|---|
|Logo|Approval|Additional Approval Text|name|
||UL|UL 61010-2-201|E175199|
||Underwriters Laboratories Inc. (ORDINARY|||
||LOCATIONS)|||



## Optional accessories 

Cables and pluggable connectors 

|Item no.: 750-923<br>Configuration cable; USB connector; Length: 2.5 m|www.wago.com/750-923|
|---|---|
|Item no.: 750-923/000-001|www.wago.com/750-923|
|Configuration cable; USB connector; Length: 5 m|/000-001|
|Power supplies||



Subject to changes. Please also observe the further product documentation! 

|WAGO Kontakttechnik GmbH & Co. KG|Do you have any questions about our products?|
|---|---|
|Hansastr. 27|We are always happy to take your call at +49 (571) 887-44222.|
|32423 Minden||
|Phone: +49571 887-0 | Fax: +49571 887-169||
|Email: info.de@wago.com | Web: www.wago.com||



04.08.2021    Page /6 11 

Data sheet | Item number: 2857-550 ~~www.wago.com/2857-550~~ 

www.wago.com/787-2852 

||Item no.: 787-2852|www.wago.com/787-2852|
|---|---|---|
||Switched-mode power supply; 1-phase; 24 VDC output voltage; 1 A output current; -||
|Mounting|||
||Item no.: 249-116<br>Screwless end stop; 6 mm wide; for DIN-rail 35 x 15 and 35 x 7.5; gray|www.wago.com/249-116|
|a|Item no.: 249-117<br>Screwless end stop; 10 mm wide; for DIN-rail 35 x 15 and 35 x 7.5; gray|www.wago.com/249-117|
|ry|Item no.: 249-197<br>Screwless end stop; 14 mm wide; for DIN-rail 35 x 15 and 35 x 7.5; gray|www.wago.com/249-197|
|Terminal blocks|||
||Item no.: 857-979<br>Supply and through module|www.wago.com/857-979|
|General accessories|||
||Item no.: 2857-900<br>Configuration display|www.wago.com/2857-900|
||Item no.: 750-921<br>Bluetooth® Adapter|www.wago.com/750-921|
||Item no.: 857-304||
|x|Relay module; Nominal input voltage: 24 VDC; 1 changeover contact; Limiting continuous current: 6 A;|www.wago.com/857-304|
||Yellow status indicator; Module width: 6 mm; 2,50 mm²; gray||
|Jumpers|||
||Item no.: 281-482<br>Jumper; insulated; gray|www.wago.com/281-482|
|li1|Item no.: 859-402<br>Jumper; for jumper slot; 2-way; insulated; light gray|www.wago.com/859-402|
|li1|Item no.: 859-402/000-005<br>Jumper; for jumper slot; 2-way; insulated; red|www.wago.com/859-402<br>/000-005|
|li1|Item no.: 859-402/000-006<br>Jumper; for jumper slot; 2-way; insulated; blue|www.wago.com/859-402<br>/000-006|
|li1|Item no.: 859-402/000-029<br>Jumper; for jumper slot; 2-way; insulated; yellow|www.wago.com/859-402<br>/000-029|
|Testing and measuring|Testing and measuring||
||Item no.: 735-500<br>Test pin; 1 mm Ø; with solder connection for test wire|www.wago.com/735-500|
|Tool|||
||Item no.: 210-720||



Subject to changes. Please also observe the further product documentation! 

WAGO Kontakttechnik GmbH & Co. KG Do you have any questions about our products? Hansastr. 27 We are always happy to take your call at +49 (571) 887-44222. 32423 Minden Phone: +49571 887-0 | Fax: +49571 887-169 Email: info.de@wago.com | Web: www.wago.com 

04.08.2021    Page /7 11 

Data sheet | Item number: 2857-550 www.wago.com/2857-550 

www.wago.com/210-720 

Operating tool; Blade: 3.5 x 0.5 mm; with a partially insulated shaft; multicoloured 

|Marking accessories|Marking accessories||
|---|---|---|
|e|Item no.: 2009-110<br>Marking strips; for Smart Printer; on reel; not stretchable; plain; snap-on type; white|www.wago.com/2009-110|
|e|Item no.: 2009-115<br>WMB-Inline; for Smart Printer; 1500 pieces on roll; stretchable 5 - 5.2 mm; plain; snap-on type; white|www.wago.com/2009-115|
|@|Item no.: 2009-141<br>Micro-WSB-Inline; 2000 pieces on roll; plain; snap-on type; white|www.wago.com/2009-141|
||Item no.: 793-501<br>WMB marking card; as card; not stretchable; plain; snap-on type; white|www.wago.com/793-501|
||Item no.: 793-502||
||WMB marking card; as card; MARKED; 1 ... 10 (10x); not stretchable; Horizontal marking; snap-on type;|www.wago.com/793-502|
||white||
||Item no.: 793-503||
||WMB marking card; as card; MARKED; 11 ... 20 (10x); not stretchable; Horizontal marking; snap-on type;|www.wago.com/793-503|
||white||
||Item no.: 793-504||
||WMB marking card; as card; MARKED; 21 ... 30 (10x); not stretchable; Horizontal marking; snap-on type;|www.wago.com/793-504|
||white||
||Item no.: 793-505||
||WMB marking card; as card; MARKED; 31 ... 40 (10x); not stretchable; Horizontal marking; snap-on type;|www.wago.com/793-505|
||white||
||Item no.: 793-506||
||WMB marking card; as card; MARKED; 41 ... 50 (10x); not stretchable; Horizontal marking; snap-on type;|www.wago.com/793-506|
||white||
||Item no.: 793-5501||
||WMB marking card; as card; for terminal block width 5 - 17.5 mm; stretchable 5 - 5.2 mm; plain; snap-on|www.wago.com/793-5501|
||type; white||
||Item no.: 793-566||
|pennerees|WMB marking card; as card; MARKED; 1 ... 50 (2x); not stretchable; Horizontal marking; snap-on type;|www.wago.com/793-566|
||white||



## Downloads Documentation 

## Bid Text 

|2857-550|15 Jul 2019|xml|Download|
|---|---|---|---|
|X81 - Datei||8.6 kB||
|2857-550|15 Jul 2019|pdf|Download|
|pdf - Datei||83.8 kB||



Subject to changes. Please also observe the further product documentation! 

WAGO Kontakttechnik GmbH & Co. KG Do you have any questions about our products? Hansastr. 27 We are always happy to take your call at +49 (571) 887-44222. 32423 Minden Phone: +49571 887-0 | Fax: +49571 887-169 Email: info.de@wago.com | Web: www.wago.com 

04.08.2021    Page /8 11 

## Data sheet | Item number: 2857-550 www.wago.com/2857-550 ~~oe~~ 

|Data sheet | Item number: 2857-550<br>www.wago.com/2857-550<br>~~oe~~|||~~WAGO~~|~~WAGO~~|
|---|---|---|---|---|
|2857-550||15 Jul 2019|docx|Download|
|docx - Datei|||22.1 kB||
|Instruction Leaflet|||||
|Current Signal Conditioner AC/DC 100 A||V 2.0.0|pdf|Download|
|||30 Sep 2020|2.9 MB||
|Additional Information|||||
|Disposal; Electrical and electronic equipment, Packaging||V 1.0.0|pdf|Download|
||||265.8 kB||
|Engineering-Software|||||
|Software for Interface-Products|||||
|WAGO Interface Configuration Software G2 FULL||1.0.6.18|exe|Download|
|The full setup, in addition to the WAGO Interface Configuration Software G2, includes||8 Apr 2021|113.9 MB||
|the installation for the Microsoft .NET Framework.|||||
|WAGO Interface Configuration Software G2 SMALL||1.0.6.18|exe|Download|
|The full setup only includes the WAGO Interface Configuration Software G2.||8 Apr 2021|30.0 MB||
|Runtime Software|||||
|Firmware|||||
|Firmware: 2857-550 Current signal conditioner; Current input signal; Current and<br>voltage output signal; Digital and relay output; Configuration via software; Supply<br>voltage: 24 VDC; 22.5 mm module width||03<br>9 May 2017|zip<br>597.0 kB|Download|
|CAD/CAE-Data|||||
|CAD data|||||
|2D/3D Models 2857-550|||URL|Download|
|CAE data|||||
|EPLAN Data Portal 2857-550|||URL|Download|
|WSCAD Universe 2857-550|||URL|Download|
|ZUKEN Portal 2857-550|||||
|Subject to changes. Please also observe the further product documentation!|||||
|WAGO Kontakttechnik GmbH & Co. KG|Do you have any questions about our products?||||
|Hansastr. 27|We are always happy to take your call at +49 (571) 887-44222.|We are always happy to take your call at +49 (571) 887-44222.|||
|32423 Minden|||||
|Phone: +49571 887-0 | Fax: +49571 887-169|||||
|Email: info.de@wago.com | Web: www.wago.com|||||



04.08.2021    Page /9 11 

Data sheet | Item number: 2857-550 www.wago.com/2857-550 

URL 

Download 

## Environmental Product Compliance 

## Compliance Search 

Environmental Product Compliance 2857-550 

URL Download 

Current signal conditioner; Current input signal; Current and voltage output signal; Digital and relay output; Configuration via software; Supply voltage: 24 VDC; 22.5 mm module width 

## Installation Notes 

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Configuration<br>-><br>.’ eeean Onioe se 30%<br>.<br><> NS :<br>2 SSORgow aa | y~, den<br>aH ~~ : Ces<br>Ve L*<br>Configuration via WAGO Interface  Configuration via WAGO Interface<br>Configuration via DIP switch Configuration Software Configuration App<br>**----- End of picture text -----**<br>


Configuration via DIP switch 

Configuration via WAGO Configuration Display 

## Conductor termination 

Subject to changes. Please also observe the further product documentation! 

WAGO Kontakttechnik GmbH & Co. KG Hansastr. 27 32423 Minden Phone: +49571 887-0 | Fax: +49571 887-169 Email: info.de@wago.com | Web: www.wago.com 

Do you have any questions about our products? We are always happy to take your call at +49 (571) 887-44222. 

04.08.2021    Page 10/11 

Data sheet | Item number: 2857-550 www.wago.com/2857-550 

Pluggable connection technology 

Commoning, not discrete wiring – Same outline allows use of a single in-line, push-in jumper. 

Safety 

Lock-out seal option 

Subject to changes. Please also observe the further product documentation! 

WAGO Kontakttechnik GmbH & Co. KG Hansastr. 27 32423 Minden Phone: +49571 887-0 | Fax: +49571 887-169 Email: info.de@wago.com | Web: www.wago.com 

Do you have any questions about our products? We are always happy to take your call at +49 (571) 887-44222. 

04.08.2021    Page 11/11 



## Links

- [View this product on Novapart](https://novapart.co/products/2857-550/signal-converter-current-voltage-digital-relay-24)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/wago/2857-550/signal-conditioner-24vdc-din-rail/dp/3787249)
---

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