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. 499-5564
Mfr. Part No.AP 50 B420L
BrandLEM
€117.73
Each
units
- - 50A 4 → 20mA 12 → 24 V dc - - - DIN Rail 30 → 2000 Hz ±1 % 18mm -20°C AP
RS Stock No. 499-5586
Mfr. Part No.AP 200 B420L
BrandLEM
€117.73
Each
units
- - 200A 4 → 20mA 12 → 24 V dc - - - DIN Rail 30 → 2000 Hz ±1 % 18mm -20°C AP
RS Stock No. 286-311
Mfr. Part No.LA 25-NP
BrandLEM
€21.10
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. 914-5313
Mfr. Part No.CT132TRAN20A-5/10V
BrandHOBUT
€36.74
Each
units
- - 20A - 15 → 30 V - - Loop Sensor DIN Rail 45 → 65 Hz Class 0.5 % 21mm -15°C CT132TRAN
RS Stock No. 446-0614
Mfr. Part No.DK 100 B420
BrandLEM
€320.97
Each
units
- Open Loop 100A 4 → 20mA 20 → 50 V dc - - Hall Effect Panel Mount - ±2 % 21.7mm -20°C DK
RS Stock No. 446-0620
Mfr. Part No.DK 200 B420
BrandLEM
€313.98
Each
units
- Open Loop 200A 4 → 20mA 20 → 50 V dc - - Hall Effect Panel Mount - ±2 % 21.7mm -20°C DK
RS Stock No. 497-182
Mfr. Part No.HASS 50-S
BrandLEM
€15.57
Each
units
- Open Loop ±150A - 5 V - - Hall Effect Panel Mount DC to 50 kHz ±1 % 20.4 x 10.4mm -40°C HASS
RS Stock No. 914-5310
Mfr. Part No.CT132TRAN10A-5/10V
BrandHOBUT
€36.74
Each
units
- - 10A - 15 → 30 V - - Loop Sensor DIN Rail 45 → 65 Hz Class 0.5 % 21mm -15°C CT132TRAN
RS Stock No. 914-5288
Mfr. Part No.CT132TRAN100A-4/20MA
BrandHOBUT
€48.05
Each
units
- - 100A 4 → 20mA 15 → 30 V - - Loop Sensor DIN Rail 45 → 65 Hz Class 0.5 % 21mm -15°C CT132TRAN
RS Stock No. 527-8719
Mfr. Part No.DHR 500 C420
BrandLEM
€221.47
Each
units
- Open Loop 500A 4 → 20mA 20 → 50 V dc - - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR
RS Stock No. 527-8731
Mfr. Part No.DHR 600 C10
BrandLEM
€221.47
Each
units
- Open Loop 1800A - 20 → 50 V dc - - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR
RS Stock No. 527-8567
Mfr. Part No.DHR 500 C10
BrandLEM
€221.47
Each
units
- Open Loop 500A - 20 → 50 V dc - - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR
RS Stock No. 497-164
Mfr. Part No.CT 0.4P
BrandLEM
€66.62
Each
units
- - ±800 - 15 V - - Fluxgate PCB Mount 40 → 18000 Hz ±1 % 11mm -20°C CT
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. 198-829
Mfr. Part No.AT 20 B5
BrandLEM
€48.84
Each
units
- - 20A - - - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT
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. 667-3474
Mfr. Part No.CSNR151
BrandHoneywell
€48.10
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. 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. 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. 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
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