CT-400

CT-400

400 A DC Current Transducer (DCCT)

±400 A Full-Scale high precision DCCT based on the 0-FLUCS technology available in the current-output or voltage-output version

 
  • Overview
  • Features
  • Technical specifications
  • Ordering options
  • Documentation
  • Software/Firmware

Overview

CT-400
Accurate and precise monitoring of DC and AC currents with high bandwidth, low noise and negligible drift.

The 0-FLUCS (0-FLUx Current Sensor) current transducer family is based on a closed loop technology that allows reaching best-in-class performance for a variety of applications.

The CT-400 transducers are rated at a at maximum bipolar primary current of 400 A with a transform ratio of 1:2000.

Galvanic isolation between the primary and the secondary circuits allows to measure currents at a different potential and simplifies interfacing when using the 0-FLUCS as the feedback element of current regulated power supplies.

Output from the CT-400 transducers can be chosen between two different versions: secondary current output or buffered voltage output (low temperature coefficient shunt resistor and low-noise amplifier are embedded in the device).

Main characteristics of the 0-FLUCS current transformers are negligible temperature coefficient on the secondary output current, excellent linearity and extremely low noise.

DC current transformers represents the ideal replacement for systems where Hall-effect sensors are used as current sensing elements and better performances are needed.

0-FLUCS exclusive technology allows the user to obtain performances which cannot be reached with other current sensing techniques.

Want to get more into this topic? Just click the following link:
0-FLUCS Exclusive Technology – An Overview

CT-400
Ideal for EV, battery testing, current calibration, AC mains monitoring and precision power supplies.

Main application fields for these current transducers are all the ones where the accuracy and precision of the current measurement is critical:

  • battery testing and characterization (EV);
  • calibration setups;
  • test stands;
  • precise AC mains monitoring;
  • extremely stable regulated power supplies;
  • power inverters.

Due to the excellent characteristics, the CT-400 transducers can be used in a variety of calibration, acceptance testing and quality control applications in industrial, power generation and automotive fields.

Commercially available versions of the CT-400 current transformers are the current-output CT-400 and the respective voltage-output version CT-400V. A LED indicating the correct operation of the device is present on all versions.

CT-400
Combine it with the low-noise PS1215 for optimal performance or use the CT-BOX-400!

The CT-400 can be used with the dedicated PS1215 low-noise AC-DC power supply available in two different versions differing by their cablings: take a look at versions dedicated to the current-output and the voltage-output current transducer series on the PS1215 product page.

For a complete measurement solution, the CT-400 is part of the CT-BOX-400 system, a complete solution for monitoring bipolar current up to 400 A.

Features

  • Monitoring of AC and DC currents
  • Excellent Linearity
  • Closed-loop detection
  • Galvanically isolated from primary
  • Low Temperature Drift
  • Current-output or Voltage-output versions
  • Wide bandwidth
  • UL 94 V-0 flammability grade
  • LED indicates correct operation
  • D-sub 9 connector
  • 3-year extended warranty

Technical specifications

  • WCT400VXAAAA
  • WCT400XAAAAA

Model

WCT400VXAAAA

WCT400XAAAAA

Current Transformation Ratio - N

1:2000

1:2000

Maximum DC Primary Current - IP(DC)

±400 A

±400 A

Current Polarity

Bipolar

Bipolar

Maximum DC Secondary Current - IS(DC)

±200 mA

±200 mA

External Shunt Resistor - RS

0 ... 40 Ω

0 ... 40 Ω

Small Signal Bandwidth (±3 dB) - typ. BW

> 100 kHz

> 100 kHz

Equivalent Input Noise (@Bandwidth)

< 1.5 ppm/FS @ 200Hz
< 10 ppm/FS @ 50 kHz
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

< 1.5 ppm/FS @ 200Hz
< 10 ppm/FS @ 50 kHz
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

Output Voltage ("V"-version) - VOUT

±10 V

±10 V

Output Voltage Gain ("V"-version) - VOUT/IP(DC)

25 mV/A

25 mV/A

Maximum Output Current ("V"-version)

±15 mA

±15 mA

Temperature Coefficient - TC

< 0.5 ppm/°C
< 2 ppm/°C ("V"-version)

< 0.5 ppm/°C
< 2 ppm/°C ("V"-version)

Maximum Total Output Offset

< 10 ppm / FS
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

< 10 ppm / FS
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

Non-Linearity

< 5 ppm
< 15 ppm ("V"-version)

< 5 ppm
< 15 ppm ("V"-version)

Induction into Primary (typ.)

30 µV (RMS)

30 µV (RMS)

Protection Signal

OK Status

OK Status

Supply Voltage (±6%)

±15 V

±15 V

Connections

D-sub 9 connector

D-sub 9 connector

Mechanical (Outer) Dimensions

94 x 91 x 50 mm

94 x 91 x 50 mm

Primary Conductor Hole Diameter - Ø

30 mm

30 mm

Operating Temperature Range

0°C ... 50°C

0°C ... 50°C

Accuracy typ.

< 30 ppm / FS
< 0.25% / FS (“V” - version)
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

< 30 ppm / FS
< 0.25% / FS (“V” - version)
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

Maximum Weight

380 g

380 g

Current Transformation Ratio - N

1:2000

1:2000

Maximum DC Primary Current - IP(DC)

±400 A

±400 A

Current Polarity

Bipolar

Bipolar

Maximum DC Secondary Current - IS(DC)

±200 mA

±200 mA

External Shunt Resistor - RS

0 ... 40 Ω

0 ... 40 Ω

Small Signal Bandwidth (±3 dB) - typ. BW

> 100 kHz

> 100 kHz

Equivalent Input Noise (@Bandwidth)

< 1.5 ppm/FS @ 200Hz
< 10 ppm/FS @ 50 kHz
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

< 1.5 ppm/FS @ 200Hz
< 10 ppm/FS @ 50 kHz
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

Output Voltage ("V"-version) - VOUT

±10 V

±10 V

Output Voltage Gain ("V"-version) - VOUT/IP(DC)

25 mV/A

25 mV/A

Maximum Output Current ("V"-version)

±15 mA

±15 mA

Temperature Coefficient - TC

< 0.5 ppm/°C
< 2 ppm/°C ("V"-version)

< 0.5 ppm/°C
< 2 ppm/°C ("V"-version)

Maximum Total Output Offset

< 10 ppm / FS
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

< 10 ppm / FS
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

Non-Linearity

< 5 ppm
< 15 ppm ("V"-version)

< 5 ppm
< 15 ppm ("V"-version)

Induction into Primary (typ.)

30 µV (RMS)

30 µV (RMS)

Protection Signal

OK Status

OK Status

Supply Voltage (±6%)

±15 V

±15 V

Connections

D-sub 9 connector

D-sub 9 connector

Mechanical (Outer) Dimensions

94 x 91 x 50 mm

94 x 91 x 50 mm

Primary Conductor Hole Diameter - Ø

30 mm

30 mm

Operating Temperature Range

0°C ... 50°C

0°C ... 50°C

Accuracy typ.

< 30 ppm / FS
< 0.25% / FS (“V” - version)
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

< 30 ppm / FS
< 0.25% / FS (“V” - version)
These specifications are guaranteed only when the CT sensor is used with the dedicated CAEN ELS PS1215 power supply

Maximum Weight

380 g

380 g

Ordering options

Ordering code

Description

Action

WCT400VXAAAA

CT-400V – 400 A Primary Current 0-FLUCS, Voltage Output

WCT400XAAAAA

CT-400 – 400 A Primary Current 0-FLUCS

Documentation

Last reviewed: 2022-12-09 ⓘ More infoRevision: 1.5

Last reviewed: 2023-02-03 ⓘ More infoRevision: 1.2

Last reviewed: 2023-02-03 ⓘ More infoRevision: 1.0

Software/Firmware

No firmware or software available.

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