IoT Energy Monitoring Module

The Energy Monitoring Module PWRM20-01 is an IoT universal, high-accuracy, compact, self-powered, electrical energy measurement device that interfaces to three-phase and single-phase systems. Specifically designed for industrial and commercial heavy-duty new and retrofit applications, the module provides a wide range of highly accurate power and energy measurement values over an operating temperature range of -40°C to +85°C.

The DIN-rail mounted enclosures have pluggable terminal blocks for connecting to phase voltages and phase currents which simplifies setup and maintenance, and the small format requires little space in control cabinets. The PWRM20-01 module interfaces to phase voltages of 85–525VAC, 50/60Hz, and is self-powered from any of the lines. Higher voltages can be interfaced to with the use of voltage transformers (VT) and appropriate scaling factors in the module.

Phase current inputs have an industry-standard range of 0.333VAC full-scale. An external shunt, current transformer, or Rogowski Coil is required to measure currents directly or non-contact.

Measuring power quality, monitoring energy consumption, determining machine health, and performing other powerful data analysis turn into simple and easy operations with this user friendly and feature rich IoT energy monitoring module.

  • Energy Metering Systems
  • Power Quality Monitoring
  • Solar Monitoring
  • Process Monitoring
  • Health of Machine
  • Predictive Maintenance
  • Retrofit Applications in Energy Distribution and Industry

The PWRM20-01 module is designed for installation in harsh industrial environments and has a high-level of noise immunity.

Product Availability
Usually stock to 2-3 weeks


The PWRM20-01 module measures and reports a wide range of electrical energy parameters which include, but are not limited to:
  • RMS Voltages and Currents
  • Phase Angles
  • Line Periods
  • Instantaneous Total Active Power
  • Instantaneous Total Apparent Power
  • Fundamental Active Power
  • Power Factors
  • Total Active Energy
  • Fundamental Active Energy
  • Fundamental Reactive Energy • Total Apparent Energy
  • Harmonics
  • Power Quality
    • Over-Voltage
    • Over-Current
    • Sag
Real-time data from the module is accessed via an Ethernet TCP/ IP port using the HTTP API and a standard web browser on a host computer, smartphone, or tablet. Data logging is user-configurable and once parameters and ranges are selected, the data is automatically downloaded and stored.



Can LabVIEW be used to query data from PWRM10-01 and PWRM20-01 modules?

Real-time data from PWRM modules can be accessed via an Ethernet TCP/IP port using the HTTP API.  More specifically, any program or script that can issue and recive a response from a HTTP API GET request can communicate with PWRM modules.  LabVIEW provides a VI that can be used for this specific functionality:

Custom Modules

Below is a list of existing custom modules. If you don't see a module matching your target specifications, contact Customer Service and Application Support to discuss design guidelines and design feasibility. Customer Service and Application Support can be reached at or +1-800-444-7644.
* ... Status Codes: PR = Production, PT = Prototypes, QU = Quoted

We want your feedback!

We are interested in your feedback regarding our products. Please let us know what you think and if you have any questions regarding the SCM5B32 and how this product could apply to your application. Your feedback is very valuable to us and very much appreciated.

Was this content helpful?
Thank you for your feedback!