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 Sensor Technology Nominal Current Output Current Range Supply Voltage Transformer Type Sensor Type Mounting Type Frequency Bandwidth Accuracy Bore Size Minimum Operating Temperature Series Maximum Operating Temperature Depth
RS Stock No. 914-5310
Mfr. Part No.CT132TRAN10A-5/10V
BrandHOBUT
PHP1,842.27
Each
units
- 10A - 15 → 30 V - Loop Sensor DIN Rail 45 → 65 Hz Class 0.5 % 21mm -15°C CT132TRAN +50°C 30mm
RS Stock No. 914-5288
Mfr. Part No.CT132TRAN100A-4/20MA
BrandHOBUT
PHP2,529.83
Each
units
- 100A 4 → 20mA 15 → 30 V - Loop Sensor DIN Rail 45 → 65 Hz Class 0.5 % 21mm -15°C CT132TRAN +50°C 30mm
RS Stock No. 801-6296
Mfr. Part No.2810625
PHP18,509.44
Each
units
- 0 → 5A 0 → 20mA 19.2 → 253 V ac/dc - - DIN Rail 45 → 65 Hz ±0.5 % - -20°C MACX MCR-SL-CAC-5-I-UP +65°C 114.5mm
RS Stock No. 446-0535
Mfr. Part No.AKR 5 C420L
BrandLEM
PHP16,569.51
Each
units
- 5A 4 → 20mA 24 V dc, 150 V ac - - Panel Mount 10 → 400 Hz ±1 % 19mm -20°C AKR +50°C 23.7mm
RS Stock No. 820-0431
Mfr. Part No.2904921
PHP18,377.78
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-D95 +80°C 85mm
RS Stock No. 914-5284
Mfr. Part No.CT132TRAN50A-4/20MA
BrandHOBUT
PHP2,409.31
Each
units
- 50A 4 → 20mA 15 → 30 V - Loop Sensor DIN Rail 45 → 65 Hz Class 0.5 % 21mm -15°C CT132TRAN +50°C 30mm
RS Stock No. 446-0636
Mfr. Part No.DK 300 B420
BrandLEM
PHP20,556.17
Each
units
- 300A 4 → 20mA 20 → 50 V dc, 22 → 38 V ac - - Panel Mount - ±1 % 21.7mm -20°C DK +50°C 30mm
RS Stock No. 801-6312
Mfr. Part No.2810612
PHP14,188.85
Each
units
- 0 → 5A 0 → 20mA 24 V dc - - DIN Rail 45 → 65 Hz ±0.5 % - -20°C MACX MCR-SL-CAC-5-I +65°C 114.5mm
RS Stock No. 451-1352
Mfr. Part No.LF 205S
BrandLEM
PHP4,194.55
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 +85°C 26.19mm
RS Stock No. 302-6077
Mfr. Part No.2814359
PHP14,432.22
Each
units
- 0 → 5A 0 → 20mA - - - Chassis Mount 45 → 60 Hz <0.5 % - -25°C MCR-SLP-1-5-UI-0 +60°C 114.5mm
RS Stock No. 792-4168
Mfr. Part No.CMS2050-SP7
BrandSensitec
PHP1,242.47
Each
units
- 50A ±150A 14.7 → 15.3 V - AMR Effect PCB Mount 100 kHz ±0.8 % - -25°C CMS2000 +85°C 7.3mm
RS Stock No. 521-992
Mfr. Part No.LF 205-S/SP3
BrandLEM
PHP4,158.15
Each
units
Closed Loop 0 → 200A 100mArms 12 → 15 V - Hall Effect Panel Mount DC to 100 kHz ±0.5 % 15.5mm -40°C LF +85°C 26.19mm
RS Stock No. 532-9198
Mfr. Part No.HAIS 50-P
BrandLEM
PHP1,209.48
Each
units
Open Loop ±150A - 5 V - Hall Effect PCB Mount DC to 50 kHz ±1 % 15 x 8mm -40°C HAIS +85°C 14mm
RS Stock No. 497-211
Mfr. Part No.LTSP 25-NP
BrandLEM
PHP889.77
Each
units
Closed Loop 25A 12mA 4.75 → 5.25 V - Hall Effect PCB Mount >300 kHz ±2.7 % - -40°C LTSP +85°C 10mm
RS Stock No. 650-554
Mfr. Part No.CSLA1CD
BrandHoneywell
PHP1,056.04
Each
units
Open Loop 0 → 57A - 8 → 16 V dc - Hall Effect PCB Mount - - 10.9mm -25°C CSL +85°C 10.4mm
RS Stock No. 446-0614
Mfr. Part No.DK 100 B420
BrandLEM
PHP19,024.52
Each
units
Open Loop 100A 4 → 20mA 20 → 50 V dc - Hall Effect Panel Mount - ±2 % 21.7mm -20°C DK +50°C 30.2mm
RS Stock No. 188-3783
Mfr. Part No.LA 125P
BrandLEM
PHP2,392.04
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 +85°C 21.4mm
RS Stock No. 177-5952
Mfr. Part No.CSLA1CD
BrandHoneywell
PHP1,006.43
Each (In a Tray of 50)
units
- - - - - - - - - - - - - -
RS Stock No. 715-7989
Mfr. Part No.2308030
PHP16,685.81
Each
units
- 0 → 200A 4 → 20mA 20 → 30 V dc - - DIN Rail 20 → 6000 Hz ±1 % 32mm -40°C MCR-SL-CUC-200-I +65°C 33.8mm
RS Stock No. 793-4590
Mfr. Part No.HLSR 40-P
BrandLEM
PHP418.20
Each
units
Open Loop 100A 40A 4.5 → 5.5 V - Hall Effect PCB Mount 400 kHz ±1 % - -40°C HLSR +105°C 21mm
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