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. 179-6667
Mfr. Part No.LA 100-P
BrandLEM
kr 264,11
Each
Units
- Closed Loop 0 150A 50mArms 12 15 V - - Hall Effect PCB Mount DC to 200 kHz ±0.7 % 12.7 x 7mm -40°C LA
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. 169-7652
Mfr. Part No.CSLA1CF
BrandHoneywell
kr 200,251
Each (In a Box of 50)
Units
- Open Loop 0 → 100A - 8 → 16 V dc - - Hall Effect PCB Mount - - 10.9mm -25°C CSL
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
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. 522-018
Mfr. Part No.HAT 500-S
BrandLEM
kr 468,39
Each
Units
- Open Loop ±1500A - 15 V - - Hall Effect Busbar, Plug In DC to 25 kHz ±1 % 40.5 x 30.5mm -10°C HAT
RS Stock No. 833-2881
Mfr. Part No.CMS-200DR
BrandABB
kr 870,38
Each
Units
- - 160A - 690 V ac, 1500 V dc - - CMS Sensor DIN Rail 50/60 Hz ±0.7 % 15mm -25°C CMS
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. 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. 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. 301-9489
Mfr. Part No.HAS 50S
BrandLEM
kr 225,62
Each
Units
- Open Loop ±150A - 15 V - - Hall Effect Panel Mount DC to 50 kHz ±1 % 20.4 x 10.4mm -10°C HAS
RS Stock No. 359-3252
Mfr. Part No.LAH 25-NP/SP3
BrandLEM
kr 248,25
Each
Units
- - 25A - - - - - - - - - - LAH
RS Stock No. 497-198
Mfr. Part No.HASS 100-S
BrandLEM
kr 172,78
Each
Units
- Open Loop ±300A - 5 V - - Hall Effect Panel Mount DC to 50 kHz ±1 % 20.4 x 10.4mm -40°C HASS
RS Stock No. 499-5564
Mfr. Part No.AP 50 B420L
BrandLEM
kr 1 208,98
Each
Units
- - 50A 4 20mA 12 24 V dc - - - DIN Rail 30 2000 Hz ±1 % 18mm -20°C AP
RS Stock No. 820-0435
Mfr. Part No.2904922
kr 2 577,95
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. 497-378
Mfr. Part No.AT 50 B10
BrandLEM
kr 648,75
Each
Units
- - 50A - - - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT
RS Stock No. 435-8763
Mfr. Part No.LAS 50-TP
BrandLEM
kr 273,58
Each
Units
- - 0 → ±150 A - 5 V - - ETA Technology PCB Mount DC to 100 kHz ±1 % - -40°C LAS
RS Stock No. 188-3783
Mfr. Part No.LA 125P
BrandLEM
kr 378,66
Each
Units
- Closed Loop 0 200A 125mArms 12 15 V - - Hall Effect PCB Mount DC to 100 kHz ±0.8 % 13 x 11mm -40°C LA
RS Stock No. 801-6255
Mfr. Part No.2813457
kr 1 903,44
Each
Units
- - 0 100A - 20 30 V dc - - - Panel Mount 30 6000 Hz ±1 % 18.5mm -20°C MCR-SL-S-100-U
RS Stock No. 497-243
Mfr. Part No.AT 150 B10
BrandLEM
kr 834,79
Each
Units
- - 150A - - - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT
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