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Phoenix Contact

MM-EE-EEM-MA550-4DI/2DO

Phoenix Contact MM-EE-EEM-MA550-4DI/2DO 1726498 is a multifunction network-parameter meter designed for energy and electrical-quantity measurement in installations up to 600 V AC. The device performs True RMS measurement, analyzes harmonics up to the 63rd harmonic and works with 1 A or 5 A current transformers with configurable primary current 1–9999 A. Active energy is measured in class 0.5 S according to IEC 62053-22.

Variant The MM-EE-EEM-MA550-4DI/2DO has an RS-485 interface with Modbus RTU, supports multi-tariff functions and offers 4 digital inputs and 2 digital outputs. The power-supply range is 85–275 V AC or 120–380 V DC, maximum power consumption is 3,5 W, and the meter is intended for panel mounting and operation at −25…+70°C.

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Shipping time: 31 dni
USD EUR with VAT without VAT
Price $501.63
incl. 23% VAT

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Energy monitoring with digital I/O

MM-EE-EEM-MA550-4DI/2DO — energy meter with Modbus RTU and 4DI/2DO

Phoenix Contact MM-EE-EEM-MA550-4DI/2DO 1726498 is a multifunction network-parameter meter designed for measuring energy and basic electrical quantities in industrial installations up to 600 V AC.

The device performs true RMS measurement, works with 1 A or 5 A current transformers and enables configuration of the primary value from 1 to 9999 A.

Version 4DI/2DO has additionally been equipped with four digital inputs and two digital outputs, while the integrated RS-485 interface with Modbus RTU enables data transmission to PLC controllers, SCADA systems and other supervisory systems.

Key benefits

Accurate measurement, Modbus RTU and additional digital I/O

Class 0.5 S

Active energy is measured according to IEC 62053-22 with accuracy class 0.5 S.

4DI / 2DO

Four inputs and two digital outputs expand the meter's application possibilities in automation systems.

Modbus RTU

RS-485 enables direct transmission of measurement data to the supervisory system.

Typical applications

Energy and network-parameter monitoring

Electrical distribution boards
Control cabinets
Production lines
Machine monitoring
Energy management
PLC systems / SCADA
Internal billing
Digital-state monitoring
Voltage measurement

Direct measurement up to 600 V AC

The MM-EE-EEM-MA550-4DI/2DO has three voltage inputs V1, V2 and V3.

The direct measurement range is 87–600 V AC phase-to-phase and 50–345 V AC phase-to-neutral.

When external voltage transformers are used, the primary side can be configured from 50 V AC to 600 000 V AC.

Phase–phase
87–600 V AC
Phase–N
50–345 V AC
Voltage transformer
50–600 000 V AC
primary side
Voltage accuracy
0,2%
Current measurement

1 A or 5 A current transformers

Current measurement is performed using external current transformers.

The device supports standard secondary values 1 A and 5 A.

The primary current value can be configured within the range from 1 to 9999 A, allowing the same meter to be used in installations with very different load levels.

CT secondary current
1 A / 5 A
CT primary current
1–9999 A
Measurement method
external current transformer
True RMS

True RMS measurement

The MM-EE-EEM-MA550-4DI/2DO uses the True RMS, i.e. true RMS measurement.

As a result, the device can more accurately represent network parameters also in installations with loads causing voltage and current waveform distortion.

The supported frequency range is from 45 to 65 Hz.

Measurement principle
True RMS
Frequency
45–65 Hz
Harmonics

Analysis up to the 63rd harmonic

The meter enables harmonic recording up to the 63rd harmonic.

Harmonic information extends standard energy monitoring with additional data about load characteristics and distortions present in the installation.

The function is particularly useful in networks with inverters, switched-mode power supplies and other non-linear loads.

Energy accuracy

Class 0.5 S for active energy

Active-energy measurement is performed in class 0.5 S according to IEC 62053-22.

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

Voltage measurement-path accuracy is 0,2%.

Active energy
Class 0.5 S
IEC 62053-22
Reactive energy
Class 2
IEC 62053-23
Voltage
0,2%
Digital inputs and outputs

4 digital inputs and 2 digital outputs

A distinguishing feature of the MM-EE-EEM-MA550-4DI/2DO variant is the additional digital inputs and outputs.

The device has 4 digital inputs and 2 digital outputs, which can be used as additional signals in the monitoring and automation system.

Digital I/O makes it possible to combine energy measurement with information about device states or use output signals for further processing in the system.

4 × DI

Four digital inputs increase the amount of information that can be included in the monitoring system.

2 × DO

Two digital outputs make it possible to transmit additional signals to the automation system.

One meter

Energy measurement and additional digital signals can be handled by one panel-mounted device.

Multi-tariff functions

Support for multiple tariffs and energy streams

Phoenix Contact defines the MM-EE-EEM-MA550-4DI/2DO as a meter supporting multi-tariff functions.

This makes it possible to separate recorded energy values according to different states or operating periods, depending on system configuration.

The function can be used in more advanced monitoring and internal energy-consumption billing systems.

Modbus RTU

RS-485 for PLC and SCADA systems

The MM-EE-EEM-MA550-4DI/2DO has an integrated RS-485 with Modbus RTU protocol.

The transmission speed can be set in the range from 2400 to 38,400 bit/s.

The interface enables transmission of measured values and energy data to PLC controllers, SCADA, BMS and energy-management systems.

Interface
RS-485
Protocol
Modbus RTU
Transmission
2400–38 400 bit/s
Connection
screw
Power supply

Wide AC and DC supply range

The meter can be powered with either AC or DC voltage.

The power-supply voltage range is 85–275 V AC or 120–380 V DC.

Maximum power consumption is 3,5 W.

AC power supply
85–275 V AC
DC power supply
120–380 V DC
Power consumption
≤3,5 W
Connections

Screw terminals

Current, voltage and power-supply measurement circuits are connected using screw terminals.

For the main connections, solid and flexible conductors with cross-sections from are supported 0.5 to 2.5 mm².

RS-485 and digital inputs and outputs use separate screw terminals intended for conductors up to 1,5 mm².

Technology
screw
Measurement / power supply
0,5–2,5 mm²
RS-485
0,5–1,5 mm²
Digital I/O
0,5–1,5 mm²
Operating conditions

Operating temperature up to +70°C

Operating temperature
−25…+70°C
Storage / transport
−40…+70°C
Humidity
≤95%
non-condensing
Operating altitude
≤2000 m
Pollution degree
2
Design and mounting

Standard 96 × 96 mm panel format

The MM-EE-EEM-MA550-4DI/2DO is intended for front-panel mounting cabinet or distribution board.

Device dimensions are 96 × 96 × 73,5 mm.

The manufacturer specifies horizontal front-panel mounting. The ingress protection rating of the connection section is IP20.

96 × 96 mm

The standard format facilitates installation of the meter in industrial panels.

73,5 mm

The compact depth reduces the amount of space required inside the cabinet.

+70°C

The wide temperature range enables operation in demanding industrial conditions.

Technical data

Key parameters of Phoenix Contact MM-EE-EEM-MA550-4DI/2DO

Manufacturer
Phoenix Contact
Model
MM-EE-EEM-MA550-4DI/2DO
Catalog number
1726498
Product type
network-parameter / energy meter
Measurement principle
True RMS
Phase-to-phase voltage
87–600 V AC
Phase-to-neutral voltage
50–345 V AC
Voltage accuracy
0,2%
CT secondary current
1 A / 5 A
CT primary current
1–9999 A
Frequency
45–65 Hz
Harmonics
up to the 63rd
Active energy
class 0.5 S
IEC 62053-22
Reactive energy
class 2
IEC 62053-23
Digital inputs
4
Digital outputs
2
Interface
RS-485
Protocol
Modbus RTU
Transmission
2400–38 400 bit/s
AC power supply
85–275 V AC
DC power supply
120–380 V DC
Power consumption
≤3,5 W
Operating temperature
−25…+70°C
Storage temperature
−40…+70°C
Humidity
≤95%
non-condensing
Operating altitude
≤2000 m
Connection protection rating
IP20
Dimensions
96 × 96 × 73,5 mm
Weight
365 g
Mounting
front panel
Approval
CE
Integration

MM-EE-EEM-MA550-4DI/2DO in an energy monitoring system

Electrical installation
measurement up to 600 V AC
→
1 / 5 A transformers
primary current up to 9999 A
→
MM-EE-EEM-MA550
measurement + 4DI / 2DO
→
RS-485
Modbus RTU
→
Higher-level system
PLC / SCADA / energy monitoring
MODEL 3D

MM-EE-EEM-MA550-4DI/2DO

Ładowanie modelu 3D
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