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WAGO 857-551

857-551 WAGO 857-551

WAGO 857-551
Part # 857-551
Manufacturer Wago
Condition New
Price: $ 330.70

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Current signal conditioner; Current input signal; Current and voltage output signal; Digital output; Configuration via software; Supply voltage: 24 VDC; 6 mm module width
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Current signal conditioner; Current input signal; Current and voltage output signal; Digital output; Configuration via software; Supply voltage: 24 VDC; 6 mm module width

Features

  • Two isolated measurement inputs for 1 and 5 A AC/DC (when mounted individually: 6 A AC/DC)
  • RMS measurement or arithmetic mean value
  • A digital signal output reacts to configured measurement range limits (on/off switching delay and threshold value switch function can be configured with up to two threshold values).
  • Switchable filter function
  • Safe 3-way isolation with 3 kV test voltage per EN 61010-1

Specifications

Notes

  • Note: Only the WAGO Interface Configuration Software can be used to set the measurement range of 0 to 6 A.Additional setting options via the WAGO Interface Configuration Software

Configuration

  • Configuration options: DIP switch || WAGO Interface Configuration Software

Input

  • Input signal type: Current
  • Input signal (current): AC/DC 0 … 5 A (IN 1; Block arrangement); AC/DC 0 … 6 A (IN 1; Individual arrangement)
  • Frequency range: 16 … 200 Hz
  • Input resistance (current input): 47 mΩ (IN 1); 10 mΩ (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 – Analog

  • Output signal type: Current || Voltage
  • Output signal (voltage): 0 … 5 V; 1 … 5 V; 0 … 10 V; 2 … 10 V (can be inverted (also bipolar))
  • Output signal (current): 0 … 10 mA; 2 … 10 mA; 0 … 20 mA; 4 … 20 mA (can be inverted (also bipolar))
  • Load impedance (voltage output): ≥ 2 kΩ
  • Load impedance (current output): ≤ 600 Ω

Output – Digital

  • 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)

Signal Processing

  • 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

Measurement Error

  • 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.)

Supply

  • Nominal supply voltage US: DC 24 V (SELV)
  • Supply voltage range: ±30 %
  • Power consumption at nominal supply voltage: ≤ 50 mA (+ IDO)

Test Voltage

  • Test voltage (input/analog output/supply/service interface): 3 kVAC; 50 Hz; 1 min

Insulation Parameters Per En 61010-1

  • Line-to-neutral conductor voltage (AC) max.: 300 V
  • Line-to-neutral conductor voltage (DC) max.: 300 V
  • 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!

Connection Data

  • 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 inch

Physical Data

  • Width: 6 mm / 0.236 inch
  • Height: 94 mm / 3.701 inch
  • Depth from upper edge of DIN-rail: 97.8 mm / 3.85 inch

Mechanical Data

  • Mounting type: DIN-35 rail

Material Data

  • Fire load: 0.000 MJ
  • Weight: 38.200 g

Environmental Requirements

  • Surrounding air temperature (operation): -40 … 70 °C (at nominal current)
  • Surrounding air temperature (storage): -40 … 85 °C
  • Temperature range of the connecting cable according to EN 61010-2-201: ≥ (Tsurrounding air + 34 K)
  • Relative humidity: 5 … 95 % (no condensation permissible)
  • Operating altitude (max.): 2000 m

Standards And Specifications

  • 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

Commercial Data

  • Packaging type: Bag
  • Country of origin Sales Organisation Germany: DE
  • GTIN: 4055143967129
  • Customs tariff number Sales Organisation Germany: 85437090300
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