ES-3071 Rev.1

M50EXWTU

Terminal Block Signal Conditioners with Display M50E-UNIT

MULTI POWER TRANSDUCER

(PC programmable)
Functions & Features
• Super-mini power transducer
• 5 to 600 A clamp CT use for current sensor
• Single-phase/2-wire, single-phase/3-wire 3-phase/3-wire and 3-phase/4-wire are available
• Single phase can measure up to four circuits, single-phase/3-wire, Three-phase/2-wire can measure up to two circuits
• High-density mounting
• Organic EL display

MODEL: M50EXWTU-223-AD4[1]

ORDERING INFORMATION

• Code number: M50EXWTU-223-AD4[1]
Specify a code from below for [1].
  (e.g. M50EXWTU-223-AD4/Q)
• Specify the specification for option code /Q
  (e.g. /C01/SET)

CONFIGURATION

2: Single phase / 2-wire and 3-wire, 
    3-phase / 3-wire and 4-wire

INPUT

2: 480 V AC / CLSE
Clamp-on current sensor is selectable from below.
CLSE (5A, 50A, 100A, 200A, 400A, 600A)
5A is available as CT's secondary.

EXTERNAL INTERFACE

3: Modbus communication

POWER INPUT

Universal
AD4: 100 – 240 V AC / 100 – 240 V DC (universal)
(Operational voltage range 85 - 264 V AC, 47 - 66 Hz /
 85 - 264 V DC, ripple 10 %p-p max.)

[1] OPTIONS

blank: none
/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
EX-FACTORY SETTING
/SET: Preset according to the Ordering Information Sheet
 (No. ESU-3071)

RELATED PRODUCTS

• PC Configurator cable (model: COP-US)
• PC configurator software (model: PMCFG)
Downloadable at our web site.
• Clamp-on current sensor (model: CLSE)

GENERAL SPECIFICATIONS

Connection: Tension clamp terminal
Applicable wire size:
  Lower connector (voltage input, power, Modbus)
  0.2 - 1.5 mm2, stripped length 8 - 9 mm
  Upper connector (current sensor input, pulse output)
  0.2 - 1.5 mm2, stripped length 10 - 11 mm
Housing material: Flame-resistant resin (black)
Isolation: Voltage input or current input to Modbus to pulse output 1 to pulse output 2 to power
Measured variables
  Voltage: 1-N, 2-N, 3-N, 1-2, 2-3, 3-1
  Current: 1, 2, 3, N
  Active power
  Reactive power
  Apparent power
  Power factor
  Frequency
  Active energy: Incoming / outgoing
  Reactive energy: Incoming / outgoing / lag (inductive)
  /lead (capacitive)
  Harmonic distortion:
  Overall distortion ratio, content rate (2nd to 31st)
  Max. and min. values
  CO2 emissions (energy conversion value)
  Simplified measurement mode: Calculates power from current values with fixed voltage values and power factor.

MODBUS COMMUNICATION

Communication: Half-duplex, asynchronous, no procedure
Standard: Conforms to TIA/EIA-485-A
Transmission distance: 500 meters max.
Baud rate: 1200, 2400, 4800, 9600, 19200, 38400 bps (default: 38400 bps)
Protocol: Modbus RTU
Node address: 1 to 247 (default: 1)
Parity: None, even or odd (default: odd)
Stop bit: 1 or 2 (default: 1)
Max. number of nodes: 31 (excluding master)
Transmission media: Shielded twisted-pair cable
(CPEV-S 0.65 to 0.9 dia.)
Internal terminating resistor: 110 Ω

DISPLAY

Display functions: Displays measured value and status of the unit
Display size: Approx. 14 × 40 mm (0.55” × 1.57”)
Character color: Yellow
Brightness: Standard or low brightness (default: standard)
Display life: Approx. 120,000 hours
(Expected time for the Display brightness to be reduced to 50 % when the Display is used continuously with low brightness in 25 ℃)
Operating mode: Automatically turn off after no operation, or always on
(default: automatically turn off after no operation for 10 minutes)
Display type: OEL display

INPUT SPECIFICATIONS

Frequency: 50 / 60 Hz (45 – 66 Hz)
• Voltage Input
Rated voltage for each wiring: 
• Single-phase/2-wire rated voltage 240 V AC
• Single-phase/3-wire phase voltage 240 V AC / line voltage 480 V AC
• Three-phase/3-wire line voltage 240 V AC
(480 V AC when voltage to ground for each line is ≤ 277 V)
• Three-phase/4-wire phase voltage 277 V / line voltage 480 V AC
Input range: 1-N, 2-N, 3-N 50 to 277 V AC
                1-2, 2-3, 3-1 50 to 480 V AC
Consumption VA: Voltage circuit ≤ ULN2 / 250 kΩ / ph
Selectable primary voltage range: 50 – 400 000 V
• Current Input
Current sensor (default: CLSE-R5)
CLSE-R5: 0 – 5 A AC
CLSE-05: 0 – 50 A AC
CLSE-10: 0 – 100 A AC
CLSE-20: 0 – 200 A AC
CLSE-40: 0 – 400 A AC
CLSE-60: 0 – 600 A AC
Input range: 0 - 120% of the rating
Low-end cutout (current): 0 - 99.9% (default setting: 1%)
Selectable primary current range: 1 – 20 000 A (only with CLSE-R5, refer to the configurator settings)

OUTPUT SPECIFICATIONS

■Pulse output
Outputs assignable to pulse: various energy
Output type: Photo MOSFET relay
Rated load: 30 V 200 mA AC/DC at peak
ON resistance: 1 Ω max.
Leakage current during opening: 2 μA max.

INSTALLATION

Power consumption
•AC: Max. 3 VA
•DC: ≤ 1.5 W
Operating temperature: -20 to +65°C (-4 to +149°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: DIN rail
Weight: 90 g (0.2 lb)

PERFORMANCE

Accuracy*1
  Voltage: ±0.5 %*2
  Current: ±0.5 %*2
  Power: ±0.5 %*2
  Power factor: ±1.5 %
  Frequency: ±0.1 Hz
  Energy: ±2 % (power factor ≥ 0.5, input ≥ 10%)
*1. Sensor error margin not included. Add sensor error margin when using with the combination of the sensor.
*2. The described accuracy levels are ensured at the input 1% or more for neutral current in a single-phase/3-wire circuit, phase-2 current in a 3-phase/3-wire circuit and phase-N current in a 3-phase/4-wire circuit.
Temp. coefficient: ±0.0075 %/°C (0.004 %/°F)
Sampling time: ≤ 500 msec.
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @ 1 minute
(current input or voltage input to Modbus to pulse output 1 or pulse output 2 to power)
500 V AC @ 1 minute (pulse output 1 to pulse output 2)

STANDARDS & APPROVALS

EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
Low Voltage Directive 
  EN 61010-1
  Measurement Category II (input)
  Installation Category II (power supply)
  Pollution Degree 2
  Voltage input to current input or Modbus or pulse output:
  Reinforced insulation (300 V)
  Power to current input or Modbus or pulse output:
  Reinforced insulation (300 V) 
RoHS Directive

EXTERNAL VIEW

TERMINAL CONNECTIONS

MODBUS WIRING CONNECTION

EXTERNAL DIMENSIONS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM