Power & Energy Panel Meter – EV300 Series

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EV300 panel meter product images.
EV300 - front view.
EV300 - left quarter angle view.
EV300 - bottom view.
EV300 - right quarter angle view.
CE Mark
ANSI 0.5 Class

Power & Energy
Panel Meters

The EV300 Series power and energy panel meter is an affordable, user-friendly three-phase metering solution for monitoring power, voltage, current, and bi-directional energy. Certified to utility revenue grade accuracy standards, its standard panel mount design, Modbus-RTU communications, and array of I/O and alarm options make this economical meter a valuable tool in any industrial or commercial environment.

  • Utility Revenue Grade: ANSI C12.20 0.5 Class & IEC 62053-22 0.5s Class
  • Communicate via Modbus-RTU through the built-in RS485 port
  • Field-configurable 5A or 1A CT input
  • Pulse, analog transducer, & alarm-triggered output options available
  • Two form factors: Standard panel mount meter or built into an AcuPanel pre-wired enclosure
  • 5 year warranty

EV300 Overview

Why Choose a Meter with True-RMS Measurements?

A linear load is a non-distorted, sinusoidal (sine) wave with symmetrical transitions between peaks and valleys and can be accurately measured with an "average sensing" meter. However, because electronic loads, such as VFDs, LED lighting systems, or computers, can create non-sinusoidal or distorted AC waveforms, a true-RMS ("root mean square") meter must be used to collect accurate data. True-RMS meters do not rely on the "averaging" method to calculate AC current. Instead, they use the Root Mean Square formula to accurately calculate distorted waveforms. When measuring a distorted load, a true-RMS meter will precisely calculate the amperage while the average sensing meter may under- or over-report the same load by 15% or more. Any measurement project can benefit from the superior accuracy of a true-RMS meter.

Customize Your Meter Configuration

The EV300 is a capable, multifunction power and energy meter that delivers robust, accurate measurements in industrial settings at an affordable price. Available with a variety of I/O options, the EV300 can be configured to meet any advanced project requirements.

EV300 front quarter angle view.
Select an EV300 Model
Choose the EV387 to monitor voltage & current or the advanced EV390 to monitor kW, kVar, kVA, energy, & more.
Choose an I/O Option
Equip the meter with various input/output options like DI, DO (pulse), AO (4-20mA), or RO.
Choose Optional Accessories
Customize your meter with a range of helpful accessories.

EV300 Main Features

EV300 - Revenue Accuracy.

REVENUE GRADE ACCURACY

The EV300 Series panel meter meets utility revenue grade accuracy standards, making it a suitable choice for any application that requires exceptional metering precision.

Key Specifications:

  • ANSI C12.20 Class 0.5 & IEC 62053-22 Class 0.5s
  • True RMS measurements
  • Maintains accuracy across 50Hz or 60Hz systems
EV300 - Bi-Directional Energy Metering.

BI-DIRECTIONAL ENERGY METERING

Measure the flow of energy in two directions: The EV300 Series panel meter is capable of bi-directional metering, making it ideal for renewable energy applications such as solar or wind.

Key Specifications:

  • Measure both consumption and generation in net metering applications
EV300 - Modbus-RTU Communications.

MODBUS-RTU COMMUNICATIONS

The EV300 Series includes a built-in RS485 port designed for Modbus-RTU communication protocol, ensuring easy interoperability between devices within industrial environments.

EV300 - Multiple I/O Options.

MULTIPLE I/O OPTIONS

Configure the EV300 Series with a variety of I/O options. Whether monitoring switch status, providing energy information to a data acquisition server, interfacing with a PLC, or triggering an alarm, there is a I/O combination suited to your application.

Key Specifications:

  • Each module features a combination of DI, Pulse, AO, and RO options
  • Power supply for digital input (24Vdc) available on E1 & E2 configurations
EV300 - Revenue Grade Accuracy Icon.
Revenue Grade Accuracy
EV300 - Revenue Accuracy.

REVENUE GRADE ACCURACY

The EV300 Series panel meter meets utility revenue grade accuracy standards, making it a suitable choice for any application that requires exceptional metering precision.

Key Specifications:

  • ANSI C12.20 Class 0.5 & IEC 62053-22 Class 0.5s
  • True RMS measurements
  • Maintains accuracy across 50Hz or 60Hz systems
EV300 - Bi-Directional Energy Metering Icon.
Bi-Directional Energy Metering
EV300 - Bi-Directional Energy Metering.

BI-DIRECTIONAL ENERGY METERING

Measure the flow of energy in two directions: The EV300 Series panel meter is capable of bi-directional metering, making it ideal for renewable energy applications such as solar or wind.

Key Specifications:

  • Measure both consumption and generation in net metering applications
EV300 - Modbus-RTU Communications Icon.
Modbus-RTU Communications
EV300 - Modbus-RTU Communications.

MODBUS-RTU COMMUNICATIONS

The EV300 Series includes a built-in RS485 port designed for Modbus-RTU communication protocol, ensuring easy interoperability between devices within industrial environments.

EV300 - Multiple I/O Options Icon.
Multiple I/O Options
EV300 - Multiple I/O Options.

MULTIPLE I/O OPTIONS

Configure the EV300 Series with a variety of I/O options. Whether monitoring switch status, providing energy information to a data acquisition server, interfacing with a PLC, or triggering an alarm, there is a I/O combination suited to your application.

Key Specifications:

  • Each module features a combination of DI, Pulse, AO, and RO options
  • Power supply for digital input (24Vdc) available on E1 & E2 configurations

EV300 Diagram

EV300 Diagram.

EV300 Product Map

AV300 Product Map.
1

Enclosure

Made of high-strength, UL 94V-0 plastic

7

Current Input Terminal

Terminal for connecting current wiring

2

Front Panel

Front part of the meter

8

Terminal for Digital Input

Connections for two digital inputs (DI1 & DI2)

3

LCD Screen

Large, backlit LCD screen

9

Terminal for Optional I/O

Connections for 3 DIs (DI3, DI4, Di5, & DI6), 2 RO/DO, and 2 AO/ 1PO

4

Function Keys

Four keys are used to interface with the meter

10

Voltage Input Terminal

Terminal for connecting voltage wiring

5

Key Door

Protects the keys from accidental use

11

Communication Terminal

Meter's RS485 port

6

Clip

Fastens the meter to the electrical panel

1

Enclosure

Made of high-strength, UL 94V-0 plastic

2

Front Panel

Front part of the meter

3

LCD Screen

Large, backlit LCD screen

4

Function Keys

Four keys are used to interface with the meter

5

Key Door

Protects the keys from accidental use

6

Clip

Fastens the meter to the electrical panel

7

Current Input Terminal

Terminal for connecting current wiring

8

Terminal for Digital Input

Connections for two digital inputs (DI1 & DI2)

9

Terminal for Optional I/O

Connections for 3 DIs (DI3, DI4, Di5, & DI6), 2 RO/DO, and 2 AO/ 1PO

10

Voltage Input Terminal

Terminal for connecting voltage wiring

11

Communication Terminal

Meter's RS485 port

EV300 Models

EV387
EV390
Application Revenue-grade voltage & current panel meter Revenue-grade power & energy panel meter
Metering Voltage, Current, Reactive Energy Voltage, Current, Power, Reactive Power, Apparent Power, Power Factor, Frequency, & Energy
I/O Options 2 DI
(See table for more I/O options)
Modbus-RTU
Panel Mount Option
Current Sensing Input 5A/1A
Power Supply Choose from: P1 (100-415Vac, 50/60Hz, 100-300Vdc) or P2 (20-60Vdc)
EV387
Application Revenue-grade voltage & current panel meter
Metering Voltage, Current, Reactive Energy
I/O Options 2 DI
(See table for more I/O options)
Modbus-RTU
Panel Mount Option
Current Sensing Input 5A/1A
Power Supply Choose from: P1 (100-415Vac, 50/60Hz, 100-300Vdc) or P2 (20-60Vdc)
EV390
Application Revenue-grade power & energy panel meter
Metering Voltage, Current, Power, Reactive Power, Apparent Power, Power Factor, Frequency, & Energy
I/O Options 2 DI
(See table for more I/O options)
Modbus-RTU
Panel Mount Option
Current Sensing Input 5A/1A
Power Supply Choose from: P1 (100-415Vac, 50/60Hz, 100-300Vdc) or P2 (20-60Vdc)

EV300 I/O Optional Configurations

BASE METER
E1
E2
E3
E4
Digital Input 2 6 6 6 6
Digital Output (Pulse) 2 2
Analog Output (4-20mA) 2 2
Relay Output 2 2
Power Supply for DI (24Vdc) 1 1
BASE METER
Digital Input 2
E1
Digital Input 6
Relay Output 2
Power Supply for DI (24Vdc) 1
E2
Digital Input 6
Digital Output (Pulse) 2
Power Supply for DI (24Vdc) 1
E3
Digital Input 6
Digital Output (Pulse) 2
Analog Output (4-20mA) 2
E4
Digital Input 6
Analog Output (4-20mA) 2
Relay Output 2

EV300 Accessories

EV300 protective display cover.
Protective Display Cover

The Protective Display Cover is designed for EV300 Series panel meters and other 96mm by 96mm display panel meters. Crucial in harsh environments, it increases the IP environmental rating of a meter's display to IP66 or NEMA 4X.

USB to Serial RS485 coverter.
USB Converter

This professional-grade, plug-and-play USB to Serial RS485 Converter is compliant with both USB 1.1 and 2.0 standards and is designed to provide a convenient, reliable USB connection to the EV300 Series meters and other serial devices.

AcuPanel
AcuPanel

The AcuPanel is a convenient pre-configured, pre-wired solution that is ideal for situations where installation inside an electrical distribution panel is not an option or in harsh environments where additional protection is needed. The factory pre-wiring will greatly save installation time and reduce frustrating wiring errors.

AC Current Transformers
AC Current Transformers

High Specification Line of AC Current Transformers. Custom built in-house, our high accuracy industrial split-core and flexible current transformers are among the industry's highest specification CT and offer exceptional value.

EV300 FAQ

What communication ports are built into the EV300?

The EV300 comes with an RS485 communication port capable of Modbus-RTU protocol.

Can the EV300 be used on non-linear loads?

Yes, the EV300 is capable of measuring voltage and current in highly-distorted, non-linear loads such as VVVF (variable voltage variable frequency), electric ballasts, or computer systems.

What kinds of current transformers can I use with the EV300?

The EV300 can be field-configured to work with either 5A or 1A industrial output current transformers.

View all EV300 FAQs