Product Model

857-551

In Stock
Last updated: 2025/4/17
wago 857-551

Selling Points

  • 1Precision AC/DC Current Measurement: Measures currents up to 5A with high accuracy.
  • 2Versatile Analog Output: Offers multiple output ranges including 4-20mA, 0-10VDC, and more.
  • 3Easy Configuration: Configure via software or DIP switches for flexible setup.
  • 4Compact Design: 6mm module width for DIN-35 rail mounting.
  • 5Robust Performance: Operates in ambient temperatures from -40°C to +70°C.
Product Details
857-551
wago

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Note
Only the WAGO Interface Configuration Software can be used to set the measurement range of 0 to 6 A.
Rated voltage
300V
Measurement category per EN 61010-2-030
CAT II (input 300 VAC)
Note on insulation parameters
Danger:Configuration via the service interface must only be performed with a voltage-free measurement input!
Protection type
IP20
Connection technology
Push-in CAGE CLAMP?
Solid conductor
0.08 … 2.5?mm2?/ 28 … 14?AWG
Fine-stranded conductor
0.34 … 2.5?mm2?/ 22 … 14?AWG
Strip length
9 … 10?mm?/ 0.35 … 0.39?inches
Width
6?mm?/ 0.236?inches
Height
94?mm?/ 3.701?inches
Depth from upper-edge of DIN-rail
97.8?mm?/ 3.85?inches
Mounting type
DIN-35 rail
Insulation material (main housing)
Polyamide (PA66)
Flammability class per UL94
V0
Fire load
0.013MJ
Weight
38.2g
Ambient temperature (operation)
-40 … +70 °C (at nominal current)
Ambient temperature (storage)
-40 … +85 °C
Temperature range of connection cable
≥ (Tambient+ 34 K)
Relative humidity
5 … 95?% (no condensation permissible)
Operating altitude (max.)
2000m
Conformity marking
CE
EMC immunity to interference
EN 61000-6-2, EN 61326-1
EMC emission of interference
EN 61000-6-3; EN 61326-1
Standards/specifications
EN 61010-1
ETIM 9.0
EC002475
ETIM 8.0
EC002475
ECCN
NO US CLASSIFICATION
PU (SPU)
1?pcs
Packaging type
bag
Country of origin
DE
GTIN
4055143967129
Customs tariff number
8543704500
RoHS Compliance Status
Compliant,With Exemption
RoHS Exemption
6(c)
Configuration options
DIP switch
Input signal type
Current
Input signal (A)
AC/DC?0 … 5?A (IN 1)
Frequency range
16 … 200?Hz
Input resistance (current input)
47?m? (IN 1);?10?m? (IN 2)
Input current (max.)
15 A (IN 1; 5 s); 10 A (IN 3; 5 s)
Response threshold
10 mA (IN 1); 2 mA (IN 3)
Resolution (current)
1 mA (IN 1); 0.5 mA (IN 3)
Output signal type
Current
Output signal (V)
0 … 5?V
Output signal (A)
0 … 10?mA
Load impedance (voltage output)
≥?2?kΩ
Load impedance (current output)
≤?600?Ω
Switching voltage (DO) max.
Supply voltage applied
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)
Measurement method
True RMS measurement; Arithmetic mean value
Software filter (adjustable)
Moving average value (filter level: 30)
Step response (typ.)
60?ms (for software filter 3)
Step response (max.)
250?ms
Transmission error (max.)
≤ 0.5 % (of the full scale value)
Temperature coefficient
1 A input: ≤ 0.01 %/K (typ.); ≤ 0.02 %/K (max.);5 A input: ≤ 0.02 %/K (typ.); ≤ 0.04 %/K (max.)
Nominal supply voltage U<sub>S</sub>
DC?24?V (SELV)
Supply voltage range
±30?%
Current consumption at nominal supply voltage
≤?50?mA?(+ IDO)
Test voltage (input/analog output/supply/service interface)
3 kVAC; 50 Hz; 1 min
Overvoltage category
II
Pollution degree
2
Insulation type (input/analog output/supply/service interface)
Double insulation (impedance and basic insulation)Requirement: The GND 1 input is dangerous when active and the measurement is conducted as a low-side measurement!

Specifications may be subject to change without notice