Energy Measurement Technology

Energy monitoring forms the basis for increasing the efficiency of your energy distribution and processes. Our harmonized energy measurement products save you much effort and expense for energy data collection. Anywhere high currents need to be measured and processed, WAGO’s current transformers are the first choice. Energy meters are suitable for billing-relevant measuring points.

Your Benefits:

  • Full range of products for new systems, as well as for retrofitting existing installations
  • Coordinated components for your energy data management
  • Fast, safe and secure wiring thanks to CAGE CLAMP® connection technology
  • Different versions for use with available standard signals

Product Overview

Our Energy Measurement Products

Take the Road
to Net Zero 

Optimizing energy consumption requires comprehensive energy measurement. WAGO’s portfolio has energy meters that simplify this task while offering several key advantages.

Your Benefits:

  • Compliance with the MID Directive 2014/32/EU allows consumption billing applications
  • M-Bus and Modbus RTU interface and two S0 pulse outputs
  • Push-in CAGE CLAMP® and lever save time at every stage
  • Real space savings with 2 DU: 35 mm (2PUCT) and 4 DU: 72 mm (4 PU and 4 PS)
  • Full transparency with an illuminated full-format display
  • Intuitive configuration with touch-sensitive controls and configuration app via Bluetooth®

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.

Your Benefits:

  • Various device variants for optional connection of current transformers or Rogowski coils
  • Slot for microSD cards for storing measurement data
  • Compact DIN-rail-mount enclosure
  • Communication via Modbus RTU and pulse output

Current/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.

Your Benefits:

  • Measure DC or AC voltages up to 300 V in a width of just 6 mm
  • Common the supply voltage via jumpers that can be used across the entire range
  • Versatile configuration

Plug-In Current Transformers for Billing Measurement

Plug-In Current Transformer for Billing Measurement

Plug-in current transformers for billing measurements are inductive, single-conductor current transformers. Due to the measurement principle used, these current transformers are exclusively designed for AC network applications.

These plug-in current transformers comply with the conformity assessment procedure (module D) and can be used for billing.

Your Benefits:

  • Readily combinable with the energy meter with transformer connections
  • Screwless CAGE CLAMP® connection technology
  • Approved for billing purposes

Plug-In Current Transformers with CAGE CLAMP® Connection Technology

  • Screwless CAGE CLAMP® Connection Technology
  • Quick-mount kit for easy and cost-effective installation
  • Tremendous versatility thanks to several mounting options
  • Easy transformer short-circuiting via redundant secondary terminals S1 and S2
  • UL listed

Plug-In Current Transformers with picoMAX® Connection Technology

  • Easy secondary cable installation via pluggable picoMAX® Connection Technology
  • Space-saving assembly directly above the circuit breaker, thanks to side latches for optimum serial mounting
  • UL listed

Split-Core Current Transformers

  • Compact split-core current transformers – ideal for retrofitting existing systems
  • No current path interruption
  • Easy and cost-effective installation via cable ties
  • Transformer leg (855-5xxx) can be completely removed if space is tight

Rogowski Coils

WAGO's 855 Series Rogowski Coils feature a closed-air coil with a non-magnetic split core and reliably convert AC currents.


  • Reduced footprint – ideal for measuring high currents via split core
  • Easy to use via bayonet lock and anchor points for cable ties
  • Higher security via sealable bayonet lock
  • Direct connection of Rogowski coils to the 3-phase power measurement module (750-495/000-002)
  • Ready for worldwide use in many industries, thanks to UL listing

Current and Voltage Tap

A combination of current transformer and voltage tap, WAGO's current and voltage tap can be quickly and easily mounted into the jumper slot of the 95 mm2 (4/0 AWG) high-current through terminal block (285-195).


  • Power data can be directly tapped into the power supply
  • Integrated 25 A/1 A current transformer
  • Complies with accuracy class 0.5 per EN 61869-2 for exact measurement results
  • Fused voltage path protects downstream measurement devices

Voltage Taps for Insulated Conductors

WAGO's 855 Series Voltage Taps easily and safely tap the measurement voltage in existing systems. Conductor contact is made via IDC connection for fast voltage tap-off.

Your benefits with our voltage taps:

  • Safely tap the measurement voltage with just one turn
  • Tool-free insulation displacement connection guarantees secure installation
  • 2 A fuse (5 x 25 mm) possible
  • For insulated conductors up to 16 mm² (6 AWG)

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For the design, installation and setup of the new test laboratory for high-voltage and high-current testing at Hitachi Energy’s global technology center, the engineering firm IDEAS relies on current and voltage taps, as well as high-current rail-mount terminal blocks from WAGO.

Discover Products

All Products

Discover the wide range of WAGO's current transformers and voltage taps.


Inspiration for You


Compact Transformer Terminal Blocks

The simple solution to reliably short-circuit current transformers that are not directly wired to a load. Also available for 3-phase circuits.


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Solutions for Today and Tomorrow

Energy Management

Identify and Exploit Potential

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

Energy Management

Energy Data Acquisition: The Right Solution for Every Step

Are you just getting started with energy management, or are you ready to delve deeper to find further potential savings? WAGO always has the right solution for you.