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. 451-1324
Mfr. Part No.LA 100P/SP13
BrandLEM
€23.82
Each
units
- Closed Loop 0 → 160A 100mArms 12 → 15 V - - Hall Effect PCB Mount DC to 200 kHz ±0.7 % 12.7 x 7mm -25°C LA
RS Stock No. 666-8172
Mfr. Part No.CAS 6-NP
BrandLEM
€12.11
Each
units
- Closed Loop 6A - 5.25 V - - - PCB Mount 200 → 300 kHz ±0.8 % - -40°C CAS
RS Stock No. 667-3474
Mfr. Part No.CSNR151
BrandHoneywell
€49.39
Each
units
- Closed Loop 0 200A 62.5mA 12 15 V dc - - Hall Effect PCB Mount DC to 150 kHz ±0.5 % - -40°C CSN
RS Stock No. 301-9473
Mfr. Part No.LTS 25NP
BrandLEM
€12.18
Each
units
- Closed Loop 0 → ±80A - 5 V - - Hall Effect PCB Mount DC 100 to 200 kHz ±0.2 % 3.2mm -40°C LTS
RS Stock No. 833-2875
Mfr. Part No.2CCA880100R0001
BrandABB
€80.42
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. 198-857
Mfr. Part No.TT 50-SD
BrandLEM
€26.69
Each
units
- - 50A 16.66mA - - - - Cable Tie 50/60 Hz ±1 % 8mm -25°C TT
RS Stock No. 499-5356
Mfr. Part No.LTSR 6-NP
BrandLEM
€12.85
Each
units
- Closed Loop 0 → ±19.2A - 5 V - - Hall Effect PCB Mount DC 100 to 200 kHz ±0.2 % 3.2mm -40°C LTSR
RS Stock No. 497-209
Mfr. Part No.AT 50 B420L
BrandLEM
€75.33
Each
units
- - 50A 4 20mA 20 30 V dc - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT
RS Stock No. 499-5378
Mfr. Part No.LTSR 25-NP
BrandLEM
€12.85
Each
units
- Closed Loop 0 → ±80A - 5 V - - Hall Effect PCB Mount DC 100 to 200 kHz ±0.2 % 3.2mm -40°C LTSR
RS Stock No. 181-2129
Mfr. Part No.CSLA2CD
BrandHoneywell
€23.32
Each
units
- Open Loop 0 → 72A - 6 → 12 V dc - - Hall Effect PCB Mount - - 10.9mm -25°C CSL
RS Stock No. 532-9126
Mfr. Part No.HXS 50-NP
BrandLEM
€8.19
Each
units
- Open Loop ±150A - 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. 833-2888
Mfr. Part No.CMS-200CA
BrandABB
€102.95
Each
units
- - 160A - 690 V ac, 1500 V dc - - CMS Sensor Cable Mount 50/60 Hz ±0.7 % 15mm -25°C CMS
RS Stock No. 527-8618
Mfr. Part No.DHR 200 C420
BrandLEM
€193.73
Each
units
- Open Loop 200A 4 20mA 20 50 V dc - - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR
RS Stock No. 763-9790
Mfr. Part No.CMS2005-SP3
BrandSensitec
€17.05
Each
units
- - 5A - ±15 V - - AMR Effect PCB Mount DC to 200 kHz ±0.8 % - -25°C CMS2000
RS Stock No. 301-9502
Mfr. Part No.HAS 200S
BrandLEM
€22.30
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. 833-2863
Mfr. Part No.2CCA880107R0001
BrandABB
€60.46
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. 301-9489
Mfr. Part No.HAS 50S
BrandLEM
€21.63
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. 532-9110
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. 914-5284
Mfr. Part No.CT132TRAN50A-4/20MA
BrandHOBUT
€48.07
Each
units
- - 50A 4 20mA 15 30 V - - Loop Sensor DIN Rail 45 65 Hz Class 0.5 % 21mm -15°C CT132TRAN
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