ES-9663 Rev.0

R8-WTU

Remote I/O R8 Series

MULTI POWER INPUT MODULE

(clamp-on current sensor type CLSE use)
Functions & Features
• 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 and three-phase/3-wire can measure up to two circuits

MODEL: R8-WTU22[1]

ORDERING INFORMATION

• Code number: R8-WTU22[1]
Specify a code from below for [1].
  (e.g. R8-WTU22/Q)
• Specify the specification for option code /Q
  (e.g. /C01)

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.

[1] OPTIONS

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

SPECIFICATIONS OF OPTION: Q

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating

RELATED PRODUCTS

• PC Configurator cable (model: MCN-CON or COP-US)
• PC configurator software (model: R8CFG)
Downloadable at our web site.
• Clamp-on current sensor (model: CLSE)
Note: When using with Power/Network module (model: R8-NECT1), firmware version Ver2.01 or later is supported.

GENERAL SPECIFICATIONS

Connection
 • Input: Tension clamp
    Applicable wire size: 0.2 - 1.5 mm2
    Stripped length: 10 mm
 • Excitation supply, internal bus:
    Connected to internal bus connector
 • Internal power: Via internal bus connector
Isolation: Voltage input or current input to internal bus or internal 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.
Measured variables data
Each measured variable can be set with 1 or 2 words using the configurator. (16 words can be used in total.)
Module address: With DIP switch
Terminating resistor: Built-in (DIP Switch, default: disable)
Status indicator: Bi-color (red/green) LED; Refer to the instruction manual.
Input status indicator: Red LED; Refer to the instruction manual.

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)

INSTALLATION

Max. current consumption: 100 mA
Operating temperature: -10 to +55°C (14 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Atmosphere: No corrosive gas or heavy dust
Mounting: DIN rail
Weight: 110 g (0.24 lb)

PERFORMANCE

Input 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. An accuracy for rated input. 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.
Data allocation: 2
Module addresses in use: 8
Temp. coefficient: ±0.0075 %/°C (0.004 %/°F)
Sampling time: ≤ 500 msec.
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength:
  1500 V AC @ 1 minute (voltage input or current input to internal bus or internal power to ground)

STANDARDS & APPROVALS

EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
Low Voltage Directive 
  EN 61010-1, EN 61010-2-201
  Measurement Category II (input)
  Pollution Degree 2
  Voltage input to current input or internal bus or internal power:
  Reinforced insulation (300 V)
RoHS Directive

EXTERNAL VIEW

TERMINAL CONNECTIONS

OPERATING MODE SETTING

(*) Factory setting
Note: Be sure to set unused SW1-7 to OFF.

EXTERNAL DIMENSIONS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM