ES-5483 Rev.5

M8CTC

Dual Output Super-mini Signal Conditioners Pico-M Series

CT CONVERTER

(clamp-on current sensor)
Functions & Features
• Converts an alternating current into a standard process signal
• Easy-to-install clamp-on type current sensor without needing a current transformer
• Clamp-on current sensor included
• Wide input range from 10 A up to 600 A
• True RMS sensing
• Space-saving, easy-to-maintain, multi-channel installation base
Typical Applications
• Centralized monitoring and control of motors at a supervisory panel
• Monitoring abnormal load current at motors to detect pump malfunctions

MODEL: M8CTC-[1][2][3]-R[4]

ORDERING INFORMATION

• Code number: M8CTC-[1][2][3]-R[4]
Specify a code from below for each of [1] through [4].
(e.g. M8CTC-1506A-R/Q)
• Specify the specification for option code /Q
(e.g. /C01/V01)

[1] SENSOR

1: Leadwire type CLSA
2: Screw terminal type CLSB

[2] INPUT

10: 0 – 10 A AC
15: 0 – 15 A AC
20: 0 – 20 A AC
30: 0 – 30 A AC
40: 0 – 40 A AC
50: 0 – 50 A AC
60: 0 – 60 A AC
75: 0 – 75 A AC
100: 0 – 100 A AC
125: 0 – 125 A AC
150: 0 – 150 A AC
175: 0 – 175 A AC
200: 0 – 200 A AC
225: 0 – 225 A AC
250: 0 – 250 A AC
300: 0 – 300 A AC
350: 0 – 350 A AC
400: 0 – 400 A AC
500: 0 – 500 A AC
600: 0 – 600 A AC (Not selectable with the sensor type
code 1 'Leadwire type CLSA')

[3] OUTPUT 1 / OUTPUT 2

6A: 1 – 5 V DC (Load resistance 2500 Ω min.)
    / 4 – 20 mA DC (Load resistance 300 Ω max.)
44: 0 – 10 V DC (Load Resistance 5000 Ω min.)
    / 0 – 10 V DC (Load Resistance 5000 Ω min.)
55: 0 – 5 V DC  (Load resistance 2500 Ω min.)
    / 0 – 5 V DC  (Load resistance 2500 Ω min.)
66: 1 – 5 V DC (Load resistance 2500 Ω min.)
    / 1 – 5 V DC (Load resistance 2500 Ω min.)

POWER INPUT

DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

[4] 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
ADJUSTMENT
/V01: Multi-turn fine adjustment

RELATED PRODUCTS

• Installation Base or Single Mount Base Socket (model: M8BSx)
This unit must be mounted on dedicated base or socket.

ACCESSORIES

The clamp-on current sensor is included in the product package.
■ CLAMP-ON CURRENT SENSOR (leadwire type CLSA)
• 0 – 10 A through 0 – 75 A Use
Sensor model No.: CLSA-08
Sensor cable model No.: CLSA-08C-30
Applicable cable diameter: Max. 10.0
Sensor leadwire: AWG 22
Weight: 45 g (1.6 oz)
• 0 – 100 A Use
Sensor model No.: CLSA-12
Sensor cable model No.: CLSA-08C-30
Applicable cable diameter: Max. 16.0
Sensor leadwire: AWG 22
Weight: 70 g (2.5 oz)
• 0 – 125 A through 0 – 300 A Use
Sensor model No.: CLSA-30
Applicable cable diameter: Max. 24.0
Sensor leadwire: AWG 18, 200 mm
Weight: 200 g (7.1 oz)
• 0 – 350 A through 0 – 500 A Use
Sensor model No.: CLSA-50
Applicable cable diameter: Max. 36.0
Sensor leadwire: AWG 18, 200 mm
Weight: 300 g (10.6 oz)
■ CLAMP-ON CURRENT SENSOR (screw terminal type CLSB)
Connection: M3 screw terminal (torque 0.5 N·m)
Screw terminal: Nickel-plated steel
Output wiring: Use AWG22 or thicker wires for the output. Twist the paired wires, extendable up to 30 meters.
• 0 – 10 A through 0 – 50 A Use
Sensor model No.: CLSB-05
Applicable cable diameter: Max. 10.0
Weight: 45 g (1.6 oz)
• 0 – 60 A through 0 – 100 A Use
Sensor model No.: CLSB-10
Applicable cable diameter: Max. 16.0
Weight: 80 g (2.8 oz)
• 0 – 125 A through 0 – 200 A Use
Sensor model No.: CLSB-20
Applicable cable diameter: Max. 24.0
Weight: 200 g (7.1 oz)
• 0 – 225 A through 0 – 400 A Use
Sensor model No.: CLSB-40
Applicable cable diameter: Max. 35.0
Weight: 300 g (10.6 oz)
• 0 – 500 A through 0 – 600 A Use
Sensor model No.: CLSB-60
Applicable cable diameter: Max. 35.0
Weight: 360 g (12.7 oz)
Note 1: The output values may vary depending on the accuracy of engagement at the clamp connection.
Note 2: The sensor is detachable up to 100 times (approx.).
Note 3: The sensor’s mechanical construction may cause it to generate resonance sound. However, it does not affect the performance of the sensor.

GENERAL SPECIFICATIONS

Construction: Plug-in
Mounting screw: M3 screw (torque 0.3 N·m)
Housing material: Flame-resistant resin (black)
Power supply: Via the Installation Base terminals
(model: M8BSx)
Isolation: Sensor core to sensor output or input to output 1 to output 2 to power
Input waveform
RMS sensing: Up to 15 % of 3rd harmonic content
Zero adjustment: -2 to +2 % (front)
Span adjustment: 98 to 102 % (front)

INPUT SPECIFICATIONS

Frequency: 50 / 60 Hz
Overload capacity
CLSA - 08: 120 A continuous
CLSA - 12: 300 A continuous
CLSA - 30: 360 A continuous
CLSA - 50: 600 A continuous
CLSB - 05: 100 A continuous
CLSB - 10: 200 A continuous
CLSB - 20: 300 A continuous
CLSB - 40: 600 A continuous
CLSB - 60: 720 A continuous
Operational range: 0 – 120 % of rating
Be sure that the input voltage is of 440 V or less.

INSTALLATION

Current consumption: Approx. 30 mA (50 mA for current output)
Operating temperature: 0 to 55°C (32 to 131°F)
Operating humidity: 30 to 95 %RH (non-condensing)
Mounting: Installation Base (model: M8BSx)
Weight: 70 g (2.5 oz)

PERFORMANCE in percentage of span

Accuracy: ±1 %
Temp. coefficient: ±0.02 %/°C (±0.01 %/°F)
Response time: ≤ 0.25 sec. (0 – 90 %)
Ripple: 0.5 %p-p max.
Line voltage effect: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @1 minute (input to output 1 or output 2 or power to ground)
500 V AC @1 minute(output 1 to output 2 to power)
1000 V AC @1 minute(sensor core to sensor output)
SWC test: ANSI/IEEE-C37.90.1-1989