Official Distributor
SKU
MPN
EEM-MA371
Series EEM-MA
EEM-MA371 - Measuring instrument
Multi-functional energy measuring device with direct Rogowski connection and integrated Modbus/TCP interface for measuring electrical parameters in low-voltage installations up to 690 V. (phoenixcontact.com/empro-help)
Technical Specifications
Product properties
Product family | EMpro |
Electrical properties
Maximum power dissipation for nominal condition | 10 VA |
Mains type | 3-phase (3 or 4-conductor), 2-phase (2-conductor), and single-phase (1-conductor) |
Electrical isolation
Test voltage | 4 kV AC (50 Hz, 60 s) |
Pollution degree | 2 |
Electrical isolation Housing against all potentials IEC 61010-1
Standards/regulations | IEC 61010-1 |
Overvoltage category | III (300 V AC) |
Overvoltage category | II (600 V AC) |
Insulation | Reinforced insulation |
Electrical isolation Supply against all other potentials IEC 61010-1
Standards/regulations | IEC 61010-1 |
Overvoltage category | III (300 V AC) |
Overvoltage category | II (600 V AC) |
Insulation | Reinforced insulation |
Electrical isolation Voltage measurement input against all other potentials IEC 61010-1
Standards/regulations | IEC 61010-1 |
Measuring category | III (300 V AC) |
Measuring category | II (600 V AC) |
Insulation | Reinforced insulation |
Electrical isolation Digital I/Os
Insulation | Functional insulation |
Electrical isolation Communication interface
Insulation | Functional insulation |
Supply
Supply Voltage Range | 100 V AC ... 230 V AC (±20 %) |
Supply Voltage Range | 150 V DC ... 250 V DC (±20 %) |
Power consumption | ≤ 4 W |
Nominal frequency | 50 Hz ... 60 Hz (AC sine) |
General
Measuring Principle | True r.m.s. value measurement |
Measured value | AC sine (50 Hz/60 Hz) |
Acquisition of harmonics | up to 63rd harmonic |
Description of the input | Digital input in accordance with IEC/EN 61131-2 (type 3) |
Number | 1 |
Voltage input signal | 24 V DC |
Voltage input signal | 0 V DC ... 30 V DC |
Current Input Signal | 2 mA ... 15 mA |
Protection | 250 mA (fast-blow) |
Measurement: Voltage
Input name | Voltage measuring input V1, V2, V3 |
Input voltage range direct | 35 V AC ... 690 V AC (Phase/Phase) |
Input voltage range direct | 20 V AC ... 400 V AC (Phase/neutral conductor) |
Input voltage range via external transformers | 60 V AC ... 2000000 V AC (primary) |
Input voltage range via external transformers | 60 V AC ... 400 V AC (secondary) |
Surge voltage capacity | 760 V AC (Phase/Phase) |
Precision | 0.2 % |
Power consumption | < 2 VA |
Measurement: Current
Input name | Current measurement RC1, RC2, RC3 |
Input Current | ≤ 400 A (Measurement level 1) |
Input Current | ≤ 4000 A (Measurement level 2) |
Input measuring range voltage | 500 µV ... 400 mV (1000 A) |
Response threshold from measuring range nominal value | 5 A |
Operate threshold | 500 µV (5 A) |
Precision | 0.5 % |
Measurement: Power
Precision | 1 % |
Real energy (IEC 62053-21) | Class 1 |
Reactive power (IEC 62053-23) | Class 2 |
Output data
Output description | Digital output in accordance with IEC/EN 61131-2 (type 3) |
Number | 1 |
Current Output Signal | ≤ 100 mA |
Voltage output signal | 24 V DC |
Protection | 250 mA (fast-blow) |
Current / voltage / supply
Connection Method | Screw connection |
Stripping length | 8 mm |
Screw thread | M3 |
Conductor cross section rigid | 0.2 mm² ... 6 mm² |
Conductor cross section flexible | 0.2 mm² ... 4 mm² |
Conductor cross section AWG | 24 ... 10 |
Tightening torque | 0.5 Nm ... 0.6 Nm |
Digital I/O / communication
Connection Method | Screw connection |
Stripping length | 7 mm |
Screw thread | M3 |
Conductor cross section rigid | 0.14 mm² ... 2.5 mm² |
Conductor cross section flexible | 0.14 mm² ... 1.5 mm² |
Conductor cross section AWG | 26 ... 14 |
Tightening torque | 0.5 Nm ... 0.6 Nm |
Data: Network interface
Communication Protocol | Modbus/TCP |
Communication Protocol | REST |
Connection Method | RJ45 |
Dimensions
Width | 90 mm |
Height | 90 mm |
Depth | 71.9 mm |
Material specifications
Color | gray (RAL 7042) |
Ambient conditions
Degree of protection (Housing) | IP20 (Housing) |
Degree of protection (Display) | IP40 (Display) |
Ambient Temperature (Operation) | -25 °C ... 70 °C |
Ambient temperature (storage/transport) | -30 °C ... 80 °C |
Altitude | ≤ 2000 m |
Max. permissible relative humidity (operation) | ≤ 95 % (non-condensing) |
CE
Certificate | CE-compliant |
UKCA
Certificate | UKCA-compliant |
UL, USA/Canada
Identification | UL/C-UL Listed UL 61010-1 |
UL data
Operating mode | Indoor use |
Operating mode | Indoor use |
Mounting
Mounting Type | DIN rail mounting |
Mounting Position | Horizontal DIN rail |
Accessories
Why Proax for Phoenix Contact 2908307?
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Additional Information
Pack Size | 1 |
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