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. 337-2752
Mfr. Part No.2814744
kr 3 918,21
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
RS Stock No. 198-835
Mfr. Part No.AT 20 B10
BrandLEM
kr 540,67
Each
Units
- - 20A - - - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT
RS Stock No. 527-8719
Mfr. Part No.DHR 500 C420
BrandLEM
kr 2 274,40
Each
Units
- Open Loop 500A 4 20mA 20 50 V dc - - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR
RS Stock No. 532-9154
Mfr. Part No.HAIS 150-P
BrandLEM
kr 202,39
Each
Units
- Open Loop ±450A - 5 V - - Hall Effect PCB Mount DC to 50 kHz ±1 % 15 x 8mm -40°C HAIS
RS Stock No. 914-5288
Mfr. Part No.CT132TRAN100A-4/20MA
BrandHOBUT
kr 484,14
Each
Units
- - 100A 4 → 20mA 15 → 30 V - - Loop Sensor DIN Rail 45 → 65 Hz Class 0.5 % 21mm -15°C CT132TRAN
RS Stock No. 914-5310
Mfr. Part No.CT132TRAN10A-5/10V
BrandHOBUT
kr 370,09
Each
Units
- - 10A - 15 30 V - - Loop Sensor DIN Rail 45 65 Hz Class 0.5 % 21mm -15°C CT132TRAN
RS Stock No. 499-5586
Mfr. Part No.AP 200 B420L
BrandLEM
kr 1 208,98
Each
Units
- - 200A 4 → 20mA 12 → 24 V dc - - - DIN Rail 30 → 2000 Hz ±1 % 18mm -20°C AP
RS Stock No. 451-1368
Mfr. Part No.LF 305S
BrandLEM
kr 574,87
Each
Units
- Closed Loop 0 300A 150mArms 12 20 V - - Hall Effect Panel Mount DC to 100 kHz ±0.5 % 20.1mm -40°C LF
RS Stock No. 499-5536
Mfr. Part No.AP 50 B10
BrandLEM
kr 1 088,73
Each
Units
- Closed Loop 50A - 24 V dc - - - DIN Rail 30 → 2000 Hz ±1 % 18mm -20°C AP
RS Stock No. 527-8466
Mfr. Part No.DHR 100 C420
BrandLEM
kr 1 989,43
Each
Units
- Open Loop 100A 4 20mA 20 50 V dc - - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR
RS Stock No. 833-2872
Mfr. Part No.2CCA880128R0001
BrandABB
kr 677,46
Each
Units
- - 80A - 690 V ac, 1500 V dc - - CMS Sensor DIN Rail 50/60 Hz ±0.7 % 10mm -25°C CMS
RS Stock No. 731-5261
Mfr. Part No.HTA 300-S
BrandLEM
kr 552,99
Each
Units
- Open Loop 300A - ±15 V - - Hall Effect Panel Mount DC to 50 kHz ±1 % 32mm -25°C HTA
RS Stock No. 919-4696
Mfr. Part No.LF 210-S
BrandLEM
kr 476,27
Each
Units
- Closed Loop ±420A ±0.21A ±11.4 ±15.75 V - - - Panel Mount 100 kHz ±0.2 % - -40°C LF
RS Stock No. 497-249
Mfr. Part No.CT 0.1P
BrandLEM
kr 695,51
Each
Units
- - ±200 mA - 15 V - - Fluxgate PCB Mount 40 → 7000 Hz ±1 % 11mm -20°C CT
RS Stock No. 451-1346
Mfr. Part No.LF 205P
BrandLEM
kr 610,66
Each
Units
- Closed Loop 0 420A 100mArms 12 15 V - - Hall Effect PCB Mount DC to 100 kHz ±0.5 % 15.5mm -40°C LF
RS Stock No. 833-2888
Mfr. Part No.CMS-200CA
BrandABB
kr 870,38
Each
Units
- - 160A - 690 V ac, 1500 V dc - - CMS Sensor Cable Mount 50/60 Hz ±0.7 % 15mm -25°C CMS
RS Stock No. 451-1374
Mfr. Part No.LF 306S
BrandLEM
kr 910,76
Each
Units
- Closed Loop 0 → 500A 150mArms 12 → 15 V - - Hall Effect Panel Mount DC to 100 kHz ±0.4 % 25.5mm -25°C LF
RS Stock No. 914-5284
Mfr. Part No.CT132TRAN50A-4/20MA
BrandHOBUT
kr 484,14
Each
Units
- - 50A 4 20mA 15 30 V - - Loop Sensor DIN Rail 45 65 Hz Class 0.5 % 21mm -15°C CT132TRAN
RS Stock No. 446-0563
Mfr. Part No.AKR 5 B420L
BrandLEM
kr 3 969,75
Each
Units
- - 5A 4 → 20mA 24 V dc, 150 V ac - - - Panel Mount 10 → 400 Hz ±1 % 21.7mm -20°C AKR
RS Stock No. 532-9126
Mfr. Part No.HXS 50-NP
BrandLEM
kr 90,93
Each
Units
- Open Loop ±150A - 5 V - - Hall Effect PCB Mount DC to 50 kHz ±1 % - -40°C HXS
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