Energy meter

Three-phase energy meter

CEM-C31-485-DS-MID

CEM-C31-485-DS-MID, Indirect three-phase energy meter with MID certificate

Code: Q23532.

  • Protocol: Modbus/RTU
  • Módules: 4
  • Tariff: 2
  • Certification: MID
  • Communications: RS-485
  • Digital inputs: 1
  • System: Three-phase
  • Measure: Indirect
  • Measurement Range (V): 3 x 57/100...3 x 230/400
  • Measurement Range (A): .../ 5 (10) A
  • Max. Current (A): 10

INFORMATION

Description

Three-phase electrical energy meter with indirect measurement, 5(10)A (, CEM-C31), direct measurement 65 A (CEM-C21) or single-phase energy meter (CEM-C10).
Built-in LCD display (7 digits) with rotating screen system. Features built-in RS-485 communications. Also features
2 buttons (1 sealable button) for viewing all the measured information.
Other features include:

  • MID certification, module B+D (depending on the type)
  • Class 1 active energy (Class B, in accordance with MID), Class 2 reactive energy
  • Complies with the EN 50470 (MID European standards) or IEC 62052-11 standards (international standards), depending on the type.
  • Compact size (CEM-C10: 2 modules, 36 mm, CEM-C21 y CEM-C31: 4 modules, 72 mm)
  • Resettable partial meter
  • 1 programmable impulse output, in accordance with DIN 43864 (CEM-C10, CEM-C31-T1, CEM-C21-T1 models)
  • 1 Digital input for Tariff selection and impulse count (CEM-C31-D, CEM-C21-DS)
  • Indicates bad connections on the screen
  • Energy storage, even in the case of bad connections

Applications

  • Redundant meter for verifying the energy allocated by the energy provider.
  • Energy consumption report sent to a remote system (PLC/BMS).
  • Cost control for achieving a high consumption/unit ratio in industrial processes.
  • Display of electrical parameters (V, A, kW, kW·h, PF, etc.), per phase and three-phase.

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SPECIFICATIONS

AC power supply
Installation category
CAT III 300 V
Consumption
< 2 W, 10 VA
Frequency
50 … 60 Hz
Nominal voltage
230 V / 400 V ~ (± 20 %)
Mechanical characteristics
Size (mm) width x height x depth
70 x 90 x 64 (mm)
Screw type
PZ-2 (voltage, current, neutral terminal inputs) / Flat tip (3 x 0.5 mm) in auxiliary power terminals, communications, digital inputs.
Envelope
PC
Torque setting
≤ 1.2 Nm (measurement terminals) / ≤ 0.6 Nm (digital input and power terminals)
Cable gauge at power supply terminals
1.5 mm2 (with toe)
Cable gauge at input and output terminals
1.5 mm2 (with toe)
Fastening
Standardized rail mounting (IEC 60715) (DIN Rail EN-50022)
Weight (kg)
0,256
Environmental characteristics
Protection class
IP 51 (instaled) IP 40 (terminal area)
Relative humidity (without condensation)
5 … 95 %
Storage temperature
-35 … +80 ºC
Working temperature
-25 … +70 ºC
Current measurement circuit
Consumption
0.3 VA … 10 A
Reference current (Iref)
5 A
Maximum current
10 A
Minimum current measurement
0.050 A
Transition current
0.25 A
Voltage measurement circuit
Consumption
< 2W , < 10VA (In, Vref)
Nominal frequency
50 / 60 Hz
Nominal voltage
3 x 127/220 ... 3 x 230/400 V ~
Electrical characteristics
Insulation voltage, circuit
4 kV RMS 50 Hz durante 1 min
Communications
Data bits
8
Stop bits (ModBus)
1
Parity
without, even, odd
Protocol
ModBus
Type
RS-485
Speed
9600 - 19200 -38400
Digital inputs
Input impedance
800 Ω(max.)
Type
Self-powered at + 5 Vdc (Vmax = 5.1 V, Imax = 8.5 mA)
Minimum signal width
Ton ≥ 30 ms, Toff ≥ 30 ms
Standards
Electrical safety, Maximum height (m)
2000
Standards
EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-23
User interface
LED
2 LED: kWh, 20000 imp/kW, kvarh, 20000 imp/kvarh
Keyboard
2 Keys
Display type
LCD
Maximum value
999999.9 kWh
Measurement accuracy
Reactive energy measurement (kvarh)
Class 2.0 (IEC 62053-23)
Active energy measurement (kWh)
Class B (EN 50470)

DIMENSIONS

CONNECTIONS

VIDEOS

DOWNLOADS

User's manual
Technical guide
3D
Diagram connection
Datasheet
Catalogue
CE-certified
Other Certificates

ACCESORIES

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