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. 522-030
Mfr. Part No.AT 5 B420L
BrandLEM
€62.82
Each
units
- - 5A 4 20mA 20 30 V dc - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT
RS Stock No. 527-8466
Mfr. Part No.DHR 100 C420
BrandLEM
€193.73
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. 532-9227
Mfr. Part No.HTFS 400-P
BrandLEM
€17.10
Each
units
- Open Loop ±600A - 5 V - - Hall Effect PCB Mount DC to 50 kHz ±1 % 22mm -40°C HTFS
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. 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. 763-9807
Mfr. Part No.CMS2050-SP3
BrandSensitec
€14.64
Each
units
- - 50A - ±15 V - - AMR Effect PCB Mount DC to 200 kHz ±0.8 % - -25°C CMS2000
RS Stock No. 497-192
Mfr. Part No.HASS 200-S
BrandLEM
€15.57
Each
units
- Open Loop ±600A - 5 V - - Hall Effect Panel Mount DC to 50 kHz ±1 % 20.4 x 10.4mm -40°C HASS
RS Stock No. 180-7391
Mfr. Part No.LA 55P/SP1
BrandLEM
€21.16
Each
units
- Closed Loop 0 100A 25mArms 12 15 V - - Hall Effect PCB Mount DC to 200 kHz ±0.9 % 12.7 x 7mm -40°C LA
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. 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. 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. 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. 666-8182
Mfr. Part No.CASR 6-NP
BrandLEM
€12.85
Each
units
- Closed Loop 6A - 5.25 V - - - PCB Mount 200 → 300 kHz ±0.8 % - -40°C CASR
RS Stock No. 435-8779
Mfr. Part No.LAS 50TP/SP1
BrandLEM
€24.69
Each
units
- - 0 → ±150 A - 5 V - - ETA Technology PCB Mount DC to 100 kHz ±1 % - -40°C LAS
RS Stock No. 497-338
Mfr. Part No.AT 100 B420
BrandLEM
€83.71
Each
units
- - 100A 4 20mA 20 30 V dc - - - 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. 198-885
Mfr. Part No.TT 100-SD
BrandLEM
€30.34
Each
units
- - 100A 33.33mA - - - - Cable Tie 50/60 Hz ±1 % 16mm -25°C TT
RS Stock No. 522-014
Mfr. Part No.HAT 200-S
BrandLEM
€45.72
Each
units
- Open Loop ±600A - 15 V - - Hall Effect Busbar, Plug In DC to 25 kHz ±1 % 40.5 x 30.5mm -10°C HAT
RS Stock No. 302-6077
Mfr. Part No.2814359
€129.52
Each
units
- - 0 → 5A 0 → 20mA - - - - Chassis Mount 45 → 60 Hz <0.5 % - -25°C MCR-SLP-1-5-UI-0
RS Stock No. 848-6796
Mfr. Part No.DVL 750
BrandLEM
€193.73
Each
units
- - - 50mA ±15 24 V - - - Panel Mount 14 kHz - - -40°C DVL
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