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. 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. 793-4590
Mfr. Part No.HLSR 40-P
BrandLEM
€6.86
Each
units
- Open Loop 100A 40A 4.5 → 5.5 V - - Hall Effect PCB Mount 400 kHz ±1 % - -40°C HLSR
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. 527-8523
Mfr. Part No.DHR 100 C10
BrandLEM
€193.73
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. 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. 527-8545
Mfr. Part No.DHR 300 C10
BrandLEM
€221.47
Each
units
- Open Loop 300A - 20 50 V dc - - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR
RS Stock No. 497-249
Mfr. Part No.CT 0.1P
BrandLEM
€66.62
Each
units
- - ±200 mA - 15 V - - Fluxgate PCB Mount 40 → 7000 Hz ±1 % 11mm -20°C CT
RS Stock No. 521-958
Mfr. Part No.HAT 400-S
BrandLEM
€46.98
Each
units
- Open Loop ±1200A - 15 V - - Hall Effect Busbar, Plug In DC to 25 kHz ±1 % 40.5 x 30.5mm -10°C HAT
RS Stock No. 177-4929
Mfr. Part No.ATO-100-B333-D16
BrandLEM
€63.45
Each
units
- - 100A - - Split Core - - DIN Rail 1.5 kHz - 16mm -10°C ATO
RS Stock No. 497-299
Mfr. Part No.HTR 300-SB
BrandLEM
€116.93
Each
units
- Open Loop ±600A - 12 15 V - - Hall Effect Busbar, Panel Mount DC to 10 kHz ±2 % 21mm -10°C HTR
RS Stock No. 527-8551
Mfr. Part No.DHR 400 C10
BrandLEM
€221.47
Each
units
- Open Loop 400A - 20 50 V dc - - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR
RS Stock No. 207-2928
Mfr. Part No.HTA 500-S
BrandLEM
€54.30
Each
units
- Open Loop ±1000A - 15 V - - Hall Effect Panel Mount DC to 50 kHz ±1 % 32mm -25°C HTA
RS Stock No. 497-091
Mfr. Part No.HTR 50-SB
BrandLEM
€107.67
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. 521-986
Mfr. Part No.HAT 1500-S
BrandLEM
€51.90
Each
units
- Open Loop ±2500A - 15 V - - Hall Effect Busbar, Plug In DC to 25 kHz ±1 % 40.5 x 30.5mm -10°C HAT
RS Stock No. 477-4711
Mfr. Part No.CSNS300M
BrandHoneywell
€75.78
Each
units
- Closed Loop 0 → 600A 150mA 15 V - - Hall Effect Busbar, PCB Mount DC to 150 kHz ±0.5 % 26mm -40°C CSN
RS Stock No. 177-4930
Mfr. Part No.ATO-125-B333-D16
BrandLEM
€65.01
Each
units
- - 125A - - Split Core - - DIN Rail 1.5 kHz - 16mm -10°C ATO
RS Stock No. 138-3466
Mfr. Part No.HO 25-NSM/SP33-1000
BrandLEM
€9.70
Each
units
- Open Loop -62.5 62.5 A Maximum of 25mA 3.14 3.46 V - - - Panel Mount 250 kHz ±1 % 18mm -40°C HO
RS Stock No. 177-4926
Mfr. Part No.ATO-50-B333-D10
BrandLEM
€52.61
Each
units
- - 50A - - Split Core - - DIN Rail 1.5 kHz - 10mm -10°C ATO
RS Stock No. 121-8174
Mfr. Part No.CSLW6B200M
BrandHoneywell
€18.23
Each
units
- - 9 -200 +200mA 4.5 10.5 V dc - - Hall Effect PCB Mount - ±1.5 % - -25°C CSL
RS Stock No. 136-2031
Mfr. Part No.TLI4970D025T5XUMA1
BrandInfineon
€6.51
Each
units
- - 20 - 3.1 3.5 V - - Hall Effect Surface Mount 18 kHz 3.5 % - -40°C TLI4970
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