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. 914-5284
Mfr. Part No.CT132TRAN50A-4/20MA
BrandHOBUT
€48.05
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. 161-4595
Mfr. Part No.CMS2005-SP3
BrandSensitec
€17.088
Each (In a Tray of 50)
units
- - 5A - ±15 V - - AMR Effect PCB Mount DC to 200 kHz ±0.8 % - -25°C CMS2000
RS Stock No. 532-9110
Mfr. Part No.HXS 20-NP/SP30
BrandLEM
€8.19
Each
units
- Open Loop ±60A - 5 V - - Hall Effect PCB Mount DC to 50 kHz ±1 % - -40°C HXS
RS Stock No. 820-0435
Mfr. Part No.2904922
€256.54
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
RS Stock No. 181-2135
Mfr. Part No.CSLA2DG
BrandHoneywell
€25.12
Each
units
- Open Loop 0 → 150A - 6 → 12 V dc - - Hall Effect PCB Mount - - 15.7mm -25°C CSL
RS Stock No. 337-2746
Mfr. Part No.2814728
€253.57
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. 801-6312
Mfr. Part No.2810612
€318.24
Each
units
- - 0 → 5A 0 → 20mA 24 V dc - - - DIN Rail 45 → 65 Hz ±0.5 % - -20°C MACX MCR-SL-CAC-5-I
RS Stock No. 181-1429
Mfr. Part No.CSNT651
BrandHoneywell
€31.32
Each
units
- Closed Loop 0 150A 25mA 12 15 V dc - - Hall Effect PCB Mount DC to 150 kHz ±0.5 % 12.5 x 9mm -40°C CSN
RS Stock No. 715-7970
Mfr. Part No.2308027
€195.93
Each
units
- - 0 100A 4 20mA 20 30 V dc - - - DIN Rail 20 6000 Hz ±1 % 32mm -40°C MCR-SL-CUC-100-I
RS Stock No. 446-0440
Mfr. Part No.AK 5 B420L
BrandLEM
€251.23
Each
units
- - 5A 4 → 20mA 24 V dc, 150 V ac - - - Panel Mount 20 → 100 Hz ±1 % 21.7mm -20°C AK
RS Stock No. 532-9249
Mfr. Part No.HTFS 400-P/SP2
BrandLEM
€18.30
Each
units
- Open Loop ±600A - 5 V - - Hall Effect PCB Mount DC to 50 kHz ±1 % 22mm -40°C HTFS
RS Stock No. 497-378
Mfr. Part No.AT 50 B10
BrandLEM
€58.63
Each
units
- - 50A - - - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT
RS Stock No. 446-0412
Mfr. Part No.AK 5 C420L
BrandLEM
€209.36
Each
units
- - 5A 4 → 20mA 24 V dc, 150 V ac - - - Panel Mount 20 → 100 Hz ±1 % 19mm -20°C AK
RS Stock No. 321-6286
Mfr. Part No.LAH25-NP
BrandLEM
€16.84
Each
units
- Closed Loop 25A 25mArms 12 15 V - - Hall Effect PCB Mount DC to 200 kHz ±0.3 % - -25°C LAH
RS Stock No. 666-8185
Mfr. Part No.CAS 25-NP
BrandLEM
€12.11
Each
units
- Closed Loop 25A - 5.25 V - - - PCB Mount 200 → 300 kHz ±0.8 % - -40°C CAS
RS Stock No. 180-7357
Mfr. Part No.LA 55-P
BrandLEM
€21.16
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. 793-4632
Mfr. Part No.ATO-75BILD10
BrandLEM
€22.04
Each
units
- - 90A 90mA - - - - - 50 Hz, 60 Hz ±1 % 10mm -25°C CAS
RS Stock No. 833-2879
Mfr. Part No.CMS-100S8
BrandABB
€70.47
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. 793-4581
Mfr. Part No.HLSR 32-P
BrandLEM
€6.86
Each
units
- Open Loop 80A 32A 4.5 → 5.5 V - - Hall Effect PCB Mount 400 kHz ±1 % - -40°C HLSR
RS Stock No. 499-5570
Mfr. Part No.AP 100 B420L
BrandLEM
€117.73
Each
units
- - 100A 4 → 20mA 12 → 24 V dc - - - DIN Rail 30 → 2000 Hz ±1 % 18mm -20°C AP
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