Wago 857-409 Data Sheet

Data sheet | Item number:857-409

Isolation amplifier; Bipolar current and voltage input signal; Bipolar current
and voltage output signal; Zero/span adjustment; Configuration via DIP
switch; Supply voltage: 24 VDC; 6 mm module width

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Data sheet | Item number:857-409

Item description

Short description:

The bipolar isolation amplifier converts analog, unipolar and bipolar, standard signals. It is also designed to amplify, filter and electrically isolate
standard analog signals.

Features:

Input overcurrent protection via resettable fuse

Zero/span adjustment across the entire measuring range

Switching between measuring ranges is calibrated

Analog, unipolar and bipolar, standard signals at input/output

Switchable max. operating frequency

Safe 3-way isolation with 2.5 kV test voltage per EN 61140

Data

Technical Data

Configuration

Configuration options DIP switches

Input

Input signal type Voltage

Current

Input signal voltage ±5V;0 … 5V;1 … 5V

Input signal, current ±10mA;0 … 10mA;2 … 10mA

Input resistance (intput/current) ≤50Ω (approx.)

Input resistance (input/voltage) 1MΩ (approx.)

Max. input current 50 mA

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Data sheet | Item number:857-409

Max. input voltage 32 V

Zero/span adjustment ± 5 % of the full scale value

Output

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 (output/voltage) ≥2kΩ

Load impedance (output/current) ≤600Ω

Residual ripple ≤10mV (rms)

Signal processing

Max. operating frequency 100Hz/ 5kHz (configurable via DIP switch)

Step response typ. 3.5ms (100 Hz);60.000000000000005µs (5 kHz)

Measurement error

Transmission error typ. ≤ 0.1 % of upper range value

Temperature coefficient ≤ 0.01 %/K

Power supply

Type of power supply 24 VDC

Nominal supply voltage U

S

DC24V

Supply voltage range ±30%

Current consumption at supply voltage ≤25mA

Safety and protection:

Test voltage (input/output/supply) AC 2.5kV;50Hz;1min

Protection class IP20

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

Geometrical Data

Width 6mm/ 0.236inch

Height from upper-edge of DIN-35 rail 97.8mm/ 3.85inch

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Data sheet | Item number:857-409

Height from upper-edge of DIN-35 rail 97.8mm/ 3.85inch

Depth 94mm/ 3.701inch

Mechanical data

Type of mounting DIN-35 rail

Material Data

Color light gray

Fire load 0 MJ

Weight 38.4 g

Environmental Requirements

Surrounding air (operating) temperature -25 … 70°C

Surrounding air (storage) temperature -40 … 85°C

Standards and specifications

Conformity marking 1

EMC immunity to interference EN 61000-6-2

EMC emission of interference EN 61000-6-3

Commercial data

Product Group 6 (Interface Electronics)

Country of origin DE

GTIN 4045454828493

Customs Tariff No. 85437090300

Approvals / Certificates

Ex-Approvals

Logo Approval Additional Approval Text Certificate name

IECEx

TUEV Nord Cert GmbH

IEC 60079-0 IECEX_TUN_14.0030_X

IECEx

TUEV Nord Cert GmbH

EN 60079-0 TÜV_14_ATEX_112692_X

Ship Approvals

Logo Approval Additional Approval Text

Certificate
name

BV

- 40179_A0

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