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Power Meter

A universal, digital 3 phase power meter

This panel-mounted 3-phase power meter is designed for use on mains circuits, potential transformers and current transformers. As a 3 phase power meter, its multi-measurement capability of active and reactive power makes it ideal for a wide range of power monitoring applications and the most flexible panel power meter for electrical monitoring. Like the rest of our power meters, this panel power meter is customizable to your needs.

Benefits include:

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APM Input

0 – 10,000KA via CT, 0 – 300V AC, 0 – 600V AC, 50 – 60Hz


IP2W, IP3W, 3P3W, 3P4W


Operating: -10 – 50°C, Storage: -40 – 70°C

Power Supply

Input: 100 – 277 VAC, Supply Frequency: 50 – 60Hz, Max Power: 2W


Max Sink Current: 15mA, Max Voltage: 24VDC, Output 1: Digital (opto-isolated), Output 2: Digital (opto-isolated), Output 3: Analog (4 – 20mA)


Includes Modbus RTU


Overall: 72mm x 72mm x 74mm, Screen: 57mm x 44.7mm

Backlight Colors

Green, Red, White




CE, cUL, IP65, NEMA Type 4 & 12 (UL50), ROHS, UKCA, UL

Part Numbers

APM-PWR-APO – positive LCD
APM-PWR-ANO – negative LCD (subject to MOQ and extended lead time)

024569-11 Power Meter Evaluation Kit

User Configurable Energy Meter

The APM Power Meter is highly customizable using the APM configuration software. The easy-to-use, free software allows you to tailor the meter to your specific needs. 

  • Programmable PT and CT Ranges: From 1:1 to 1000:1, users can tailor the meter’s sensitivity to specific voltage levels. For current measurements, the meter covers a range. of 0 – 5A, allowing fine tuning of current measurement sensitivity.
  • Customizable Scale & Range: Adjust offset, gain, and min/max range. 
  • 10 Independent Alarms: Set conditions and actions to meet your requirements. 
  • Digital Output DelaysSet delays from 0.5 to 120 seconds to ensure accuracy. 
  • Color Changing Backlight: Customize color and intensity, with flashing or static alerts. 

Next-Level Communication

We understand the importance of integrating your meters with external systems. That’s why the APM Power Meter includes: 

  • Two Digital, One Analog Output: Use digital (opto-isolated) and analog (4-20mA) output for integration with other systems and equipment.
  • Modbus Connectivity: With Modbus RTU over RS485, the APM Power Meter provides notifications of alarm status and phase angle readings.
  • Remote Monitoring: Connect your APM to the cloud with the APM IoT Gateway and monitor readings anywhere using the free Trumeter Cloud platform.

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Want to try out the APM Power Meter for yourself? Contact us today and a product expert will be in touch regarding one of our fully functional evaluation kits.