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Phoenix Contact

EEM-MB370-24DC

Phoenix Contact EEM-MB370-24DC 1127061 is a multifunction energy meter from the EMpro family, designed for measurement of electrical parameters in low-voltage installations up to 690 V AC. The device is designed to work with external 1 A or 5 A current transformers, allows the primary current to be configured in the range 1–20 000 A, performs continuous True RMS measurement and harmonic analysis up to the 63rd harmonic.

Model EEM-MB370-24DC is a version without a local display, powered with 18–30 V DC. It has 10/100 Mb/s RJ45 Ethernet supporting Modbus TCP and REST, one input and one 24 V DC digital output. Active energy is measured in class 0,5 S according to IEC 62053-22, and the device is designed for DIN-rail mounting and operation at −25…+70°C.

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Availability:
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Shipping time: 31 dni
USD EUR with VAT without VAT
Price $501.85
incl. 23% VAT

Shipping costs are not included in the price.

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Produkty powiązane

EMpro with 24 V DC power supply

EEM-MB370-24DC — energy meter up to 690 V AC without display

Phoenix Contact EEM-MB370-24DC 1127061 is a multifunction energy meter designed for monitoring electrical parameters in single-, two- and three-phase low-voltage installations up to 690 V AC.

The device uses external current transformers with a secondary current of 1 A or 5 A and allows the primary current to be configured from 1 to 20 000 A. Voltage and current are measured using the True RMS method.

Variant The MB370-24DC is a version without a local display, intended primarily for remote reading and integration with supervisory systems. Communication is provided via Ethernet using Modbus TCP and REST protocols.

Key benefits

Up to 20 000 A, class 0,5 S and Ethernet

20 000 A

Support for 1 A and 5 A transformers allows the primary current to be configured up to 20 000 A.

Class 0,5 S

Active energy is measured in accordance with IEC 62053-22 requirements.

Modbus TCP

Ethernet enables fast data transmission to control and energy-management systems.

Typical applications

Monitoring electrical parameters and energy

Electrical distribution boards
Control cabinets
Production lines
Load monitoring
Energy management
PLC systems
SCADA systems
Energy submeters
Voltage measurement

Direct measurement up to 690 V AC

The EEM-MB370-24DC has three voltage measurement inputs V1, V2 and V3.

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

When external voltage transformers are used, the primary-side value can be configured from 60 V AC to 2 000 000 V AC.

Phase–phase
18–690 V AC
Phase–N
11–400 V AC
Voltage transformer
60–2 000 000 V AC
primary side
VT secondary side
60–400 V AC
Voltage accuracy
0,2%
Current measurement

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

Current measurement is performed using three inputs I1, I2 and I3 designed to work with external current transformers.

The device supports a standard secondary current of 1 A or 5 A.

The configurable primary range is from 1 to 20 000 A, allowing the meter to be used in circuits with both low and very high operating currents.

Current inputs
I1 / I2 / I3
CT secondary current
1 A / 5 A
CT primary range
1–20 000 A
Current accuracy
0,2%
Continuous overload
20 A
4 × IN
Short-term overload
50 A / 1 s
True RMS

Continuous true RMS measurement

The EEM-MB370-24DC performs continuous True RMS measurement.

The fundamental frequency range is from 45 to 65 Hz.

Sampling is performed at 12,8 kHz for a 50 Hz network and 15,4 kHz at 60 Hz.

Measurement method
True RMS
Frequency
45–65 Hz
50 Hz sampling
12,8 kHz
60 Hz sampling
15,4 kHz
Harmonics

Analysis up to the 63rd harmonic

The device records voltage and current harmonics up to the 63rd harmonic.

This function extends basic energy monitoring with information that helps assess load characteristics and the level of distortion present in the installation.

This can support diagnostics of installations with many power-electronic devices and other non-linear loads.

Accuracy

Class 0,5 S for active energy

Voltage and current measurement accuracy is 0,2%.

Power measurement accuracy is 0,5%.

Active energy is measured in class 0,5 S according to IEC 62053-22, while 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
IEC 62053-22
Reactive energy
Class 2
IEC 62053-23
Ethernet

Modbus TCP and REST via RJ45

The EEM-MB370-24DC has one RJ45 Ethernet port.

The network interface supports Modbus TCP and REST, enabling data transmission to automation, monitoring and energy-management systems.

The Ethernet port operates at 10 or 100 Mb/s.

Interface
Ethernet
Connector
RJ45
Protocols
Modbus TCP / REST
Speed
10 / 100 Mb/s
Configuration

Web-based commissioning wizard

The EMpro series is equipped with an integrated web server that facilitates device configuration and commissioning.

A guided step-by-step setup wizard allows basic meter parameters to be configured using a web browser.

The solution is particularly important in the MB370-24DC variant, which does not require a local operator panel for day-to-day device operation.

Digital I/O

One input and one 24 V DC output

The EEM-MB370-24DC has one digital input compliant with IEC/EN 61131-2 type 3.

The input supports a 24 V DC signal in the range from 0 to 30 V DC.

The device also has one 24 V DC digital output with a maximum output 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
24 V DC power supply

Operating range from 18 to 30 V DC

Version 1127061 is designed to be powered from a typical industrial 24 V DC.

bus. The nominal voltage is 24 V DC with ±25% tolerance, corresponding to an operating range from 18 to 30 V DC.

Device power consumption is less than 4 W.

Nominal voltage
24 V DC
Tolerance
±25%
Power supply range
18–30 V DC
Power consumption
<4 W
Electrical safety

Reinforced insulation and 4 kV AC test

The meter design meets insulation and safety requirements for industrial measuring devices.

The test voltage is 4 kV AC at 50 Hz for 60 seconds.

For the measurement path, category III at 300 V AC and category II at 600 V AC are specified.

Test voltage
4 kV AC
50 Hz / 60 s
Category
III / 300 V AC
Category
II / 600 V AC
Connections

Screw terminals and RJ45 Ethernet

Current and voltage measurement circuits and the power supply use screw terminals.

Rigid conductors from 0,2 to 6 mm² and flexible conductors from 0,2 to 4 mm² are supported.

Digital I/O uses terminals for rigid conductors 0,14–2,5 mm² and flexible conductors 0,14–1,5 mm², while the Ethernet interface is available via RJ45.

Measurement / power supply
screw
Solid conductor
0,2–6 mm²
Flexible conductor
0,2–4 mm²
Ethernet
RJ45
Operating conditions

Operating temperature from −25 to +70°C

Operating temperature
−25…+70°C
Storage / transport
−30…+80°C
Humidity
≤95%
non-condensing
Operating altitude
≤2000 m
Protection rating
IP20
Design and mounting

Compact 5 HP DIN-rail module

The EEM-MB370-24DC is intended for horizontal DIN-rail mounting.

Device dimensions are 90 × 90 × 71,7 mm, and the width corresponds to five modular units.

The housing has an IP20 ingress protection rating and is intended for installation inside a suitably protected cabinet or distribution board.

5 HP

The compact width enables efficient use of mounting-rail space.

DIN

Standard mounting facilitates installation with other modular equipment.

IP20

The design is intended for installation inside cabinets and distribution boards.

Technical data

Key parameters of Phoenix Contact EEM-MB370-24DC

Manufacturer
Phoenix Contact
Model
EEM-MB370-24DC
Catalog number
1127061
Family
EMpro
Display
none
Measurement method
True RMS
Phase-to-phase voltage
18–690 V AC
Phase-to-neutral voltage
11–400 V AC
Voltage accuracy
0,2%
CT secondary current
1 A / 5 A
CT primary current
1–20 000 A
Current accuracy
0,2%
Power accuracy
0,5%
Active energy
class 0,5 S
IEC 62053-22
Reactive energy
class 2
IEC 62053-23
Frequency
45–65 Hz
Harmonics
up to 63rd
Ethernet
1 × RJ45, 10/100 Mb/s
Protocols
Modbus TCP / REST
Digital input
1 × 24 V DC
Digital output
1 × 24 V DC / ≤100 mA
Nominal power supply
24 V DC
Supply range
18–30 V DC
Power consumption
<4 W
Test voltage
4 kV AC
50 Hz / 60 s
Operating temperature
−25…+70°C
Storage temperature
−30…+80°C
Humidity
≤95%
non-condensing
Operating altitude
≤2000 m
Protection rating
IP20
Dimensions
90 × 90 × 71,7 mm
Modular width
5 TE
Weight
284,67 g
Mounting
horizontal DIN rail
Standards
IEC 61010-1 / IEC 61326-1 / IEC 61557-12
Integration

EEM-MB370-24DC in an energy monitoring system

Electrical installation
voltage measurement up to 690 V AC
→
1 / 5 A transformers
primary current up to 20 000 A
→
EEM-MB370-24DC
energy measurement and analysis
→
Ethernet
Modbus TCP / REST
→
Higher-level system
PLC / SCADA / energy monitoring
MODEL 3D

EEM-MB370-24DC

Ładowanie modelu 3D
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