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. 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. 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. 446-0636
Mfr. Part No.DK 300 B420
BrandLEM
kr 3 882,62
Each
Units
- - 300A 4 → 20mA 20 → 50 V dc, 22 → 38 V ac - - - Panel Mount - ±1 % 21.7mm -20°C DK
RS Stock No. 497-091
Mfr. Part No.HTR 50-SB
BrandLEM
kr 1 125,31
Each
Units
- Open Loop ±100A - 12 → 15 V - - Hall Effect Busbar, Panel Mount DC to 10 kHz ±2 % 21mm -10°C HTR
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. 446-0579
Mfr. Part No.AKR 50 B420L
BrandLEM
kr 3 797,37
Each
Units
- - 50A 4 → 20mA 24 V dc, 150 V ac - - - Panel Mount 10 → 400 Hz ±1 % 21.7mm -20°C AKR
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. 499-5407
Mfr. Part No.HX 50-P
BrandLEM
kr 133,50
Each
Units
- Open Loop ±150A - 15 V - - Hall Effect PCB Mount 50 kHz ±1 % 1.2 x 6.3mm -25°C HX
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. 301-9502
Mfr. Part No.HAS 200S
BrandLEM
kr 233,20
Each
Units
- Open Loop ±600A - 15 V - - Hall Effect Panel Mount DC to 50 kHz ±1 % 20.4 x 10.4mm -10°C HAS
RS Stock No. 286-311
Mfr. Part No.LA 25-NP
BrandLEM
kr 219,44
Each
Units
- Closed Loop 0 → 36A 25mArms 15 V - - Hall Effect PCB Mount DC to 150 kHz ±0.5 % - -40°C LA
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. 532-9198
Mfr. Part No.HAIS 50-P
BrandLEM
kr 202,39
Each
Units
- Open Loop ±150A - 5 V - - Hall Effect PCB Mount DC to 50 kHz ±1 % 15 x 8mm -40°C HAIS
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. 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
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. 446-0541
Mfr. Part No.AKR 50 C420L
BrandLEM
kr 3 105,56
Each
Units
- - 50A 4 → 20mA 24 V dc, 150 V ac - - - Panel Mount 10 → 400 Hz ±1 % 19mm -20°C AKR
RS Stock No. 793-4610
Mfr. Part No.DVL 250
BrandLEM
kr 2 921,21
Each
Units
- - - 50mA ±15 24 V - - - Panel Mount 14 kHz ±0.5 % - -40°C DVL
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. 435-8713
Mfr. Part No.HX 15P/SP2
BrandLEM
kr 117,45
Each
Units
- Open Loop ±45A - 12 → 15 V - - Hall Effect PCB Mount 50 kHz ±1 % 1.4mm -25°C HX
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