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Phoenix Contact

EEM-MA370-24DC - Meter

Phoenix Contact EEM-MA370-24DC 1127059 is a multifunction energy meter from the EMpro family designed for measurement and monitoring of electrical parameters in low-voltage installations up to 690 V AC. The device supports single-, two- and three-phase networks, performs continuous True RMS measurement and analyzes harmonics up to the 63rd harmonic and works with 1 A or 5 A current transformers.

Version EEM-MA370-24DC is powered by 24 V DC within the range 18–30 V DC, making it easy to integrate with typical automation cabinets. The meter has 10/100 Mb/s Ethernet with Modbus TCP and REST API, a backlit two-color LCD display, voltage and current measurement accuracy of 0,2% and active energy class 0.5 S according to IEC 62053-22.

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Shipping time: 31 dni
USD EUR with VAT without VAT
Price $578.16
incl. 23% VAT

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Energy measurement with 24 V DC power supply

EEM-MA370-24DC — multifunction EMpro energy meter for DIN rail

Phoenix Contact EEM-MA370-24DC 1127059 is a multifunction energy meter designed to measure and monitor electrical parameters in low-voltage installations up to 690 V AC.

The device supports single-, two- and three-phase networks, performs continuous True RMS measurement and enables analysis of voltage, current, power, energy and higher harmonics.

Version EEM-MA370-24DC uses an auxiliary 24 V DC supply, allowing direct integration with typical industrial automation systems and power supplies used in control cabinets.

Key benefits

690 V AC, 20,000 A and 24 V DC power supply

690 V AC

Direct phase-to-phase voltage measurement enables the meter to be used in typical low-voltage installations.

20 000 A

Compatibility with current transformers enables primary current to be configured from 1 to 20,000 A.

24 V DC

18–30 V DC power supply simplifies integration of the device with industrial control cabinets and automation.

Typical applications

Energy monitoring in industrial and building installations

Electrical distribution boards
Control cabinets
Industrial plants
Process lines
HVAC systems
Data centers
Energy monitoring
Facility Management
24 V DC power supply

Variant designed for industrial automation systems

EEM-MA370-24DC is powered at a nominal voltage of 24 V DC.

The permissible supply voltage range is from 18 up to 30 V DC, i.e. ±25% of the nominal value.

This allows the meter to be powered from the same 24 V DC system as PLCs, I/O modules, communication devices and other automation components.

Nominal supply
24 V DC
Supply range
18–30 V DC
Power consumption
<4 W
Network measurement

Continuous true RMS measurement

EEM-MA370-24DC can operate in three-phase 3- and 4-wire networks, two-phase networks and single-phase networks.

Electrical parameters are measured according to the True RMS continuously, allowing the device to correctly represent distorted voltage and current waveforms as well.

The fundamental frequency range is from 45 to 65 Hz.

Measurement principle
True RMS
Frequency
45–65 Hz
Sampling
12.8 / 15.4 kHz
for 50 / 60 Hz
Voltage measurement

Direct measurement up to 690 V AC

The meter has three voltage inputs V1, V2 and V3 designed to monitor the parameters of individual phases.

The direct measurement range is 18–690 V AC phase-to-phase and 11–400 V AC phase-to-neutral.

External voltage transformers can also be used for installations requiring measurement of a higher primary voltage.

Phase–phase
18–690 V AC
Phase–N
11–400 V AC
Accuracy
0,2%
Current measurement

1 A and 5 A transformers and primary current up to 20,000 A

Current measurement is performed through three inputs I1, I2 and I3 designed for use with standard current transformers.

Transformers with secondary current are supported 1 A or 5 A, while the configurable primary current range is from 1 to 20,000 A.

Current measurement accuracy is 0.2%, allowing the device to be used for detailed monitoring of installation load.

CT secondary current
1 A / 5 A
Primary current
1–20 000 A
Accuracy
0,2%
Energy accuracy

Class 0.5 S for active energy

EEM-MA370-24DC measures power with an accuracy of 0,5%.

Active energy measurement meets the requirements class 0.5 S according to IEC 62053-22 and class 0.5 S according to ANSI C12.20.

Reactive energy is measured in class 2 according to IEC 62053-23.

Voltage
0,2%
Current
0,2%
Power
0,5%
Active energy
Class 0.5 S
Reactive energy
Class 2
Harmonic analysis

Recording up to the 63rd harmonic

EEM-MA370-24DC enables recording of voltage and current harmonics up to the 63rd harmonic.

This function makes it possible to analyze distortions caused by inverters, variable-speed drives, switched-mode power supplies and other nonlinear loads.

This data can be used during installation diagnostics and analysis of power quality parameters.

Harmonics
up to the 63rd
Sampling 50 Hz
12,8 kHz
Sampling 60 Hz
15,4 kHz
Communication

Ethernet with Modbus TCP and REST API

EEM-MA370-24DC has a built-in Ethernet RJ45 operating at 10 or 100 Mb/s.

Protocol Modbus TCP enables direct integration with PLCs, SCADA systems, BMS and energy management systems.

Interface REST API over HTTP also enables measurement data to be provided to applications and IT systems.

Interface
Ethernet RJ45
Ethernet
10 / 100 Mb/s
Protocol
Modbus TCP
API
REST HTTP
Inputs and outputs

Digital I/O for automation integration

The meter has one digital input compliant with IEC/EN 61131-2 Type 3.

The input operates with a 24 V DC signal and can be used to handle additional signals from the installation or control system.

A 24 V DC digital output is also available with a maximum current of 100 mA.

Digital input
1 × 24 V DC
Input range
0–30 V DC
Digital output
1 × 24 V DC
Output current
≤100 mA
Support

LCD display and configuration via web server

EEM-MA370-24DC has a backlit, two-color, multi-line LCD display enabling local viewing of measurement values.

The integrated web server enables device configuration via a standard web browser.

The guided installation wizard simplifies setup of network type, transformer parameters and communication.

Operating conditions

Operation at temperatures from −25 to +70°C

Operating temperature
−25…+70°C
Storage temperature
−30…+80°C
Humidity
≤95%
non-condensing
Operating altitude
≤2000 m
Design and mounting

Compact 5-TE enclosure for DIN rail

EEM-MA370-24DC is designed for mounting on a horizontal DIN rail in electrical distribution boards and control cabinets.

The enclosure dimensions are 90 × 90 × 71,9 mm and a width corresponding to 5 modules.

The enclosure has an IP20 protection rating, while the display area achieves IP40 protection.

5 TE

The 90 mm width enables compact installation of the meter in a distribution board.

DIN

The device design is prepared for direct mounting on a horizontal mounting rail.

IP20 / IP40

The enclosure has IP20 protection, while the display section has IP40 protection.

Technical data

Key parameters of Phoenix Contact EEM-MA370-24DC

Manufacturer
Phoenix Contact
Model
EEM-MA370-24DC
Catalog number
1127059
Family
EMpro
Measurement principle
True RMS
Phase-to-phase voltage
18–690 V AC
Phase-to-neutral voltage
11–400 V AC
Voltage accuracy
0,2%
Current transformers
1 A / 5 A
Primary current
1–20 000 A
Current accuracy
0,2%
Power accuracy
0,5%
Active energy
class 0.5 S
Reactive energy
class 2
Harmonics
up to the 63rd
Power supply
24 V DC ±25%
Supply range
18–30 V DC
Power consumption
<4 W
Ethernet
RJ45, 10 / 100 Mb/s
Communication
Modbus TCP / REST HTTP
Digital input
1 × 24 V DC
Digital output
1 × 24 V DC / ≤100 mA
Display
LCD, backlit, 2-color
Operating temperature
−25…+70°C
Protection rating
IP20 / IP40 display
Dimensions
90 × 90 × 71,9 mm
Modular width
5 TE
Mounting
DIN rail
Integration

EEM-MA370-24DC in an energy monitoring system

Electrical installation
voltage and 1/5 A transformers
→
EEM-MA370-24DC
energy measurement and analysis
→
Ethernet
Modbus TCP / REST
→
Higher-level system
energy monitoring and management
MODEL 3D

EEM-MA370-24DC - Meter

Ładowanie modelu 3D
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