Current Transducers

Current transducers, or current sensors, are an electrical component that detects electric current in a wire and converts it into another type of electrical signal proportional to the current value. The generated signal could be analogue voltage, current or a digital output. This generated signal can be then used to display the measured current in an ammeter, or can be used for the purpose of controlling other circuits.

Current Transducer Types

Current sensors can be either open-loop or closed-loop.
•Open-Loop Sensor: This type measures AC and DC currents and provides electrical isolation between the circuit being measured and the output of the sensor. Open-loop current sensors are generally preferred in battery-powered circuits.


•Closed-Loop Sensor: The Closed-Loop sensor is sometimes called a ’Zero-Flux’ sensor because it features a Hall-Effect sensor that feeds back an opposing current into a secondary coil, wound on the magnetic core to zero the flux produced in the magnetic core by the primary current. Closed-loop sensors are often used when high accuracy is essential.

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Description Price Sensor Technology Nominal Current Output Current Range Supply Voltage Transformer Type Sensor Type Mounting Type Frequency Bandwidth Accuracy Bore Size Minimum Operating Temperature Series Maximum Operating Temperature Depth
RS Stock No. 820-0431
Mfr. Part No.2904921
$543.37
Each
units
- 100 → 4000A 0 → 1A 24 V dc - - Flange Mount 10 → 5000 Hz, 45 → 65 Hz ±0.21 % 8.3mm -30°C PACT RCP-4000A-1A-D95 +80°C 85mm
RS Stock No. 302-6077
Mfr. Part No.2814359
$413.42
Each
units
- 0 → 5A 0 → 20mA - - - Chassis Mount 45 → 60 Hz <0.5 % - -25°C MCR-SLP-1-5-UI-0 +60°C 114.5mm
RS Stock No. 820-0444
Mfr. Part No.2904923
$543.37
Each
units
- 100 → 4000A 0 → 1A 24 V dc - - Flange Mount 10 → 5000 Hz, 45 → 65 Hz ±0.21 % 8.3mm -30°C PACT RCP-4000A-1A-D190 +80°C 85mm
RS Stock No. 715-7970
Mfr. Part No.2308027
$425.03
Each
units
- 0 → 100A 4 → 20mA 20 → 30 V dc - - DIN Rail 20 → 6000 Hz ±1 % 32mm -40°C MCR-SL-CUC-100-I +65°C 33.8mm
RS Stock No. 715-7989
Mfr. Part No.2308030
$373.91
Each
units
- 0 → 200A 4 → 20mA 20 → 30 V dc - - DIN Rail 20 → 6000 Hz ±1 % 32mm -40°C MCR-SL-CUC-200-I +65°C 33.8mm
RS Stock No. 820-0435
Mfr. Part No.2904922
$364.31
Each
units
- 100 → 4000A 0 → 1A 24 V dc - - Flange Mount 10 → 5000 Hz, 45 → 65 Hz ±0.21 % 8.3mm -30°C PACT RCP-4000A-1A-D140 +80°C 85mm
RS Stock No. 337-2718
Mfr. Part No.2814715
$672.05
Each
units
- 0 → 11A 0 → 20mA 20 → 30 V dc - - Chassis Mount 15 → 400 Hz <0.5 % - -20°C MCR-S-1-5-UI-DCI-NC +60°C 114.5mm
RS Stock No. 337-2724
Mfr. Part No.2814731
$785.74
Each
units
- 0 → 11A 0 → 20mA 20 → 30 V dc - - Chassis Mount 15 → 400 Hz <0.5 % - -20°C MCR-S-1-5-UI-SW-DCI-NC +60°C 114.5mm
RS Stock No. 337-2746
Mfr. Part No.2814728
$708.60
Each
units
- 0 → 55A 0 → 20mA 20 → 30 V dc - - Chassis Mount 15 → 400 Hz <0.5 % - -20°C MCR-S10-50-UI-DCI-NC +60°C 114.5mm
RS Stock No. 337-2752
Mfr. Part No.2814744
$789.48
Each
units
- 0 → 55A 0 → 20mA 20 → 30 V dc - - Chassis Mount 15 → 400 Hz <0.5 % - -20°C MCR-S10-50-UI-SW-DCI-NC +60°C 114.5mm
RS Stock No. 175-0490
Mfr. Part No.2907888
$16.78
Each
units
- - - - - - - - - - - PACT RCP - -
RS Stock No. 175-0485
Mfr. Part No.2864671
$40.14
Each
units
- - - - - - DIN Rail - - - - MCR - -