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 Input Current Range Sensor Technology Nominal Current Output Current Range Supply Voltage Transformer Type Maximum Cable Diameter Sensor Type Mounting Type Frequency Bandwidth Accuracy Bore Size Minimum Operating Temperature Series
RS Stock No. 667-3459
Mfr. Part No.CSNE151-104
BrandHoneywell
kr 151,84
Each
Units
- Closed Loop 0 → 56A 12.5mA 15 V dc - - Hall Effect PCB Mount DC to 150 kHz ±1 % - -40°C CSN
RS Stock No. 763-9797
Mfr. Part No.CMS2025-SP3
BrandSensitec
kr 141,37
Each
Units
- - 25A - ±15 V - - AMR Effect PCB Mount DC to 200 kHz ±0.8 % - -25°C CMS2000
RS Stock No. 169-7653
Mfr. Part No.CSNA111
BrandHoneywell
kr 247,538
Each (In a Box of 30)
Units
- Closed Loop -60 → +60 mA -70 → +70A ±15 V - - - PCB Mount DC to 150 kHz ±0.5 % - 0°C CSN
RS Stock No. 527-8539
Mfr. Part No.DHR 200 C10
BrandLEM
kr 1 989,43
Each
Units
- Open Loop 200A - 20 → 50 V dc - - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR
RS Stock No. 532-9182
Mfr. Part No.HAIS 400-P
BrandLEM
kr 202,39
Each
Units
- Open Loop ±600A - 5 V - - Hall Effect PCB Mount DC to 50 kHz ±1 % 15 x 8mm -40°C HAIS
RS Stock No. 452-9325
Mfr. Part No.DK 400 B10
BrandLEM
kr 3 450,62
Each
Units
- - 400A - 20 50 V dc, 22 38 V ac - - - Panel Mount - ±1 % 21.7mm -20°C DK
RS Stock No. 337-2746
Mfr. Part No.2814728
kr 3 720,80
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
RS Stock No. 446-0591
Mfr. Part No.DK 100 B10
BrandLEM
kr 3 537,56
Each
Units
- Open Loop 100A - 20 50 V dc - - Hall Effect Panel Mount - ±2 % 21.7mm -20°C DK
RS Stock No. 715-7989
Mfr. Part No.2308030
kr 2 011,73
Each
Units
- - 0 200A 4 20mA 20 30 V dc - - - DIN Rail 20 6000 Hz ±1 % 32mm -40°C MCR-SL-CUC-200-I
RS Stock No. 207-2912
Mfr. Part No.HTA 400-S
BrandLEM
kr 568,29
Each
Units
- Open Loop ±1000A - 15 V - - Hall Effect Panel Mount DC to 50 kHz ±1 % 32mm -25°C HTA
RS Stock No. 833-2879
Mfr. Part No.CMS-100S8
BrandABB
kr 677,46
Each
Units
- - 80A - 690 V ac, 1500 V dc - - CMS Sensor Cable Mount 50/60 Hz ±0.7 % 10mm -25°C CMS
RS Stock No. 919-4707
Mfr. Part No.LF 2010-S
BrandLEM
kr 2 169,07
Each
Units
- Closed Loop ±3000A ±0.6A ±14.25 ±25.2 V - - - Panel Mount 150 kHz ±0.3 % - -40°C LF
RS Stock No. 527-8523
Mfr. Part No.DHR 100 C10
BrandLEM
kr 1 989,43
Each
Units
- Open Loop 100A - 20 50 V dc - - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR
RS Stock No. 521-992
Mfr. Part No.LF 205-S/SP3
BrandLEM
kr 699,30
Each
Units
- Closed Loop 0 200A 100mArms 12 15 V - - Hall Effect Panel Mount DC to 100 kHz ±0.5 % 15.5mm -40°C LF
RS Stock No. 497-209
Mfr. Part No.AT 50 B420L
BrandLEM
kr 834,79
Each
Units
- - 50A 4 20mA 20 30 V dc - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT
RS Stock No. 435-8735
Mfr. Part No.HX 20-P/SP2
BrandLEM
kr 96,81
Each
Units
- Open Loop ±60A - 12 15 V - - Hall Effect PCB Mount 50 kHz ±1 % 1.6mm -25°C HX
RS Stock No. 321-6292
Mfr. Part No.LAH 50-P
BrandLEM
kr 189,03
Each
Units
- Closed Loop 50A 25mArms 12 15 V - - Hall Effect PCB Mount DC to 200 kHz ±0.25 % - -25°C LAH
RS Stock No. 180-7357
Mfr. Part No.LA 55-P
BrandLEM
kr 217,30
Each
Units
- Closed Loop 0 70A 50mArms 12 15 V - - Hall Effect PCB Mount DC to 200 kHz ±0.9 % - -40°C LA
RS Stock No. 146-2052
Mfr. Part No.CDS4050ACC-KA
BrandSensitec
kr 323,812
Each (In a Tray of 50)
Units
- - 50A 6mA 5 V - - AMR Effect PCB Mount DC to 400 kHz 0.8 % - -40°C CDS4000
RS Stock No. 451-1352
Mfr. Part No.LF 205S
BrandLEM
kr 469,59
Each
Units
- Closed Loop 0 → 420A 100mArms 12 → 15 V - - Hall Effect Panel Mount DC to 100 kHz ±0.5 % 15.6mm -40°C LF
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