WAGO Signal Conditioners and Isolation Amplifiers providing secor and error-free signal transfer

Signal Conditioners and Isolation Amplifiers

Isolate, amplify, filter and convert: Signal conditioners and isolation amplifiers from the JUMPFLEX® family handle a large number of functions in various application areas and provide secure and error-free signal transfer – thanks to a comprehensive range of approvals for worldwide applications. The focus is on usability and absolute reliability.

WAGO’s signal conditioners and isolation amplifiers keep a uniform profile within cabinets. This allows easy commoning of the supply voltage, eliminating the need for time-consuming wiring of individual components.


  • Calibrated switching between measurement ranges to always ensure equal precision
  • Input/output response simulation (2857 Series)
  • Can be used under extreme environmental conditions (−40 … +70°C)
  • Safe isolation per DIN EN 61010-1
  • Intuitive configuration via software, app, display, DIP or push/slide switch

New Product

Threshold Value Switch for Railway Applications

Safe 3-Way Isolation per EN 61010-1

WAGO’s new threshold value switch with a coated PCB meets all major standards – from railroad noise (per EN 61373) to temperature influences (per EN 50155) to electromagnetic compatibility (per EN 50121-3-2).

The Benefits for You:

  • An even broader portfolio of suitable signal conditioners to choose from
  • Reach deeper into the railway industry with standard-compliant products
  • Safe 3-way isolation with 4 kV test voltage per EN 61010-1

Various Combination Options

Discover Our Range of Signal Conditioners and Isolation Amplifiers

Signal Conditioners

Isolate, amplify, filter or convert: WAGO’s signal conditioners handle a large number of functions in industrial applications and provide secure and error-free signal transmission.

The range of signal conditioners provides the right solution for every application:

  • With a power supply: signal conditioners (permanently configured), signal conditioners (configurable), universal signal conditioners, bipolar signal conditioners, repeater power supplies, signal splitters
  • Without a power supply: passive isolators, loop-powered isolators

The Benefits for You:

  • Galvanic isolation between input/output/power supply
  • Zero and span adjustment to compensate for error or signal shifts
  • Switchable filter function to prevent signal interference
  • Reliable protection of the input circuit against overcurrent (857-409, 857-402, 2857-401)
  • A digital signal output (DO) reacts to freely configurable measurement range limits (this allows use as a threshold value switch – with activation/deactivation delay).

Frequency Signal Conditioners

WAGO’s frequency signal conditioners record 0.1 kHz to 120 kHz signals from NAMUR, NPN or PNP sensors and convert the frequency into an analog standard signal.

The Benefits for You:

  • Signal acquisition from NAMUR, NPN or PNP sensors
  • Frequency range: 0.1 … 120 kHz
  • Fault signaling: Wire break/short-circuit detection for NAMUR proximity sensors
  • Signaling measurement range underflow/overflow

Speed measurement with NAMUR indicator with frequency converter (857-500)

Temperature Signal Conditioners

With WAGO’s temperature signal conditioners, signals from Pt, TC, Ni, KTY and RTD sensors and resistors can be recorded and converted into an analog standard signal on the output side. Whether a resistive temperature device or a thermocouple is used depends on factors such as the maximum temperature range, the installation environment and the required measurement accuracy:

  • Resistive temperature device (RTD): Temperature range up to 850 °C, high accuracy
  • Thermocouple (TC): Temperature range up to 2320 °C, better response time

The Benefits for You:

  • Signal acquisition from Pt, TC, Ni, KTY and RTD sensors and resistors up to 4.5 kΩ (e.g., Pt100 sensors)
  • 2-, 3- and 4-wire connection technology
  • Fault signaling: wire break/short-circuit detection of the sensor
  • Signaling measurement range underflow/overflow

Temperature monitoring via Pt sensor with Temperature Signal Conditioner (857-801)

Threshold Value Switch

WAGO’s threshold value switches monitor various measurement signals such as temperature, current or voltage. If a value falls above or below a limiting value setting, emergency stops or alarms can be triggered, for example. In addition to threshold value switches for analog signals, WAGO also offers RTD threshold value switches for resistance temperature sensors and potentiometers, as well as TC threshold value switches for thermocouples, allowing both signal monitoring and measurement.

Your Benefits:

  • Input/output response simulation (2857 Series)
  • Relays as threshold value switches (e.g., activation/deactivation delay)
  • A digital signal output (DO) reacts to freely configurable measurement range limits (this allows use as a threshold value switch – with activation/deactivation delay).

Temperature Monitoring via Threshold Value Functionality with WAGO's 2857-533 Resistance Threshold Value Switch

Potentiometer Signal Conditioner

This potentiometer signal conditioner records resistance signals; e.g., from potentiometers, and converts them into a standard analog signal.

Your Benefits:

  • Signal acquisition from potentiometers and resistors
  • Automatic potentiometer identification
  • Configurable input and output parameters
  • A digital signal output (DO) reacts to freely configurable measurement range limits (this allows use as a threshold value switch – with activation/deactivation delay).

Resistance Measurement via Potentiometer with WAGO's 857-809 Potentiometer Signal Conditioner

Current and Voltage Signal Conditioners and Power Measurement Modules

Besides current and voltage signal conditioners which record DC and AC currents and voltages, this impressive range also includes a power measurement module that can measure current and voltage in parallel, convert them to power and output them as an analog standard signal. Additionally, WAGO’s signal conditioner for Rogowski coils offers a solution for retrofitting existing systems. Thus it is not necessary to disconnect the live conductor. The new WAGO 3-Phase Power Measurement Module measures all relevant parameters in a three-phase supply network – voltage, current, power, harmonics, etc. – from within the control cabinet.

Your Benefits:

  • Signal acquisition of DC and AC voltages up to 300 VAC/VDC using modules that are just 6 mm wide
  • AC currents up to 4000 A via Rogowski coil
  • Switchable filter function to prevent signal interference
  • A digital signal output (DO) reacts to freely configurable measurement range limits (this allows use as a threshold value switch – with activation/deactivation delay).

Light Monitoring with WAGO's 2857-550 Current Signal Conditioner

3-Phase Power Measurement Modules

The power measurement modules in a DIN-rail mounting enclosure offer the ideal solution for measuring currents and voltages in a three-phase supply network remotely from the control level. Measured variables such as active/apparent/reactive power, energy consumption, power factor, phase angle and frequency can be accessed via Modbus® interface. Two integrated RJ45 sockets streamline the interconnection of up to 32 devices.

The Benefits for You:

  • Measurement via current transformers or Rogowski coils: Flexible selection of upcoming measurement tasks
  • Slot for microSD cards: Fast and secure mobile measurement, including recording
  • Compact device in DIN-rail-mount enclosure: Saves space in building technology
  • Modbus® Interface (RS-485): Provision of the measured values via Modbus®
  • Digital signal output as pulse output (pulses/kWh are configurable): Continuous energy consumption monitoring

Power Measurement with the 3-Phase Power Measurement Module (2857-570/024-001)

Configuration Options

Intuitive configuration via software, app or display

Interface Configurator

The signal conditioners are all user-friendly and easy to configure with the interface configurator.

  • Simulation of input and output parameters (2857 Series)
  • Automatic module detection
  • Configuration and visualization of process values
  • Parameterization of the digital switch output (threshold functionality)
  • Communication via WAGO USB Service Cable (750-923) or WAGO Bluetooth® Adapter (750-921), pluggable on both series

Configuration Display

The Removable Display can be quickly and easily attached to the housing. It includes an innovative touch panel for intuitively configuring devices. The multicolor display changes between orange, red, green and white depending on the device’s current status. Integrated capabilities, such as the copy function, can transmit stored configuration data from one device to another of the same type. Passwords for protecting configured data can be assigned to prevent unauthorized access and changes.

The Benefits for You:

  • Can be easily plugged into signal conditioners
  • Touch functionality via control environment
  • Automatic module detection
  • Configuration and visualization of process values
  • Copy function for copying configuration data from device to device


All Products

Discover all our signal conditioners and isolation amplifiers.


Video: Signal Conditioners

Discover the extensive features of WAGO’s signal conditioners, which simplify day-to-day work with streamlined commissioning and operation.

This May Also Interest You

Related Topics and Products

Energy Management

Saving energy is good for the environment and for business. Performing the right analysis and taking the right steps can lead to sustainable profit. WAGO is your partner for effective energy management.


Service and Maintenance with Transparency

Who thinks about service and maintenance when using process technology systems? Analog signal conditioners are well established in process technology.


Wholesaler in Your Area

Faster service: Just enter your zip code and desired search radius to find your electronics wholesaler.