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. 286-361
Mfr. Part No.LV 25-P
BrandLEM
MYR331.68
Each
units
Closed Loop 0 → 14 25mA 12 → 15 V - Hall Effect PCB Mount - ±0.9 % - 0°C LV +70°C 29.2mm
RS Stock No. 914-5288
Mfr. Part No.CT132TRAN100A-4/20MA
BrandHOBUT
MYR182.83
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. 914-5310
Mfr. Part No.CT132TRAN10A-5/10V
BrandHOBUT
MYR147.34
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. 497-221
Mfr. Part No.LA 25-P
BrandLEM
MYR140.61
Each
units
Closed Loop 0 → 55A 25mArms 12 → 15 V - Hall Effect PCB Mount DC to 200 kHz ±1.25 % - -25°C LA +85°C 14.45mm
RS Stock No. 914-5313
Mfr. Part No.CT132TRAN20A-5/10V
BrandHOBUT
MYR168.56
Each
units
- 20A - 15 → 30 V - Loop Sensor DIN Rail 45 → 65 Hz Class 0.5 % 21mm -15°C CT132TRAN +50°C 30mm
RS Stock No. 321-6286
Mfr. Part No.LAH25-NP
BrandLEM
MYR97.47
Each
units
Closed Loop 25A 25mArms 12 → 15 V - Hall Effect PCB Mount DC to 200 kHz ±0.3 % - -25°C LAH +85°C 14.93mm
RS Stock No. 181-2129
Mfr. Part No.CSLA2CD
BrandHoneywell
MYR103.89
Each
units
Open Loop 0 → 72A - 6 → 12 V dc - Hall Effect PCB Mount - - 10.9mm -25°C CSL +85°C 10.4mm
RS Stock No. 169-7656
Mfr. Part No.CSLA2DK
BrandHoneywell
MYR228.634
Each (In a Box of 50)
units
- - Maximum of 400A 6 → 12 V dc - Hall Effect PCB Mount - - - -25°C CSL +85°C 14.2mm
RS Stock No. 321-6315
Mfr. Part No.LTS 15NP
BrandLEM
MYR70.56
Each
units
Closed Loop 0 → ±48A - 5 V - Hall Effect PCB Mount DC 100 to 200 kHz ±0.2 % 3.2mm -40°C LTS +85°C 10mm
RS Stock No. 121-8179
Mfr. Part No.CSLA2DK
BrandHoneywell
MYR187.28
Each
units
- 20 Maximum of 400A 6 → 12 V dc - Hall Effect PCB Mount - - - -25°C CSL +85°C 14.2mm
RS Stock No. 499-5536
Mfr. Part No.AP 50 B10
BrandLEM
MYR527.70
Each
units
Closed Loop 50A - 24 V dc - - DIN Rail 30 → 2000 Hz ±1 % 18mm -20°C AP +60°C 55mm
RS Stock No. 301-9502
Mfr. Part No.HAS 200S
BrandLEM
MYR107.80
Each
units
Open Loop ±600A - 15 V - Hall Effect Panel Mount DC to 50 kHz ±1 % 20.4 x 10.4mm -10°C HAS +80°C 30mm
RS Stock No. 301-9495
Mfr. Part No.HAS 100S
BrandLEM
MYR117.35
Each
units
Open Loop ±300A - 15 V - Hall Effect Panel Mount DC to 50 kHz ±1 % 20.4 x 10.4mm -10°C HAS +80°C 30mm
RS Stock No. 527-8466
Mfr. Part No.DHR 100 C420
BrandLEM
MYR902.63
Each
units
Open Loop 100A 4 → 20mA 20 → 50 V dc - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR +70°C 25mm
RS Stock No. 146-2052
Mfr. Part No.CDS4050ACC-KA
BrandSensitec
MYR177.075
Each (In a Tray of 50)
units
- 50A 6mA 5 V - AMR Effect PCB Mount DC to 400 kHz 0.8 % - -40°C CDS4000 +105°C 22mm
RS Stock No. 763-9775
Mfr. Part No.CDS4050ACC-KA
BrandSensitec
MYR177.40
Each
units
- 50A 6mA 5 V - AMR Effect PCB Mount DC to 400 kHz 0.8 % - -40°C CDS4000 +105°C 22mm
RS Stock No. 180-7357
Mfr. Part No.LA 55-P
BrandLEM
MYR117.65
Each
units
Closed Loop 0 → 70A 50mArms 12 → 15 V - Hall Effect PCB Mount DC to 200 kHz ±0.9 % - -40°C LA +85°C 14.45mm
RS Stock No. 793-4632
Mfr. Part No.ATO-75BILD10
BrandLEM
MYR106.51
Each
units
- 90A 90mA - - - - 50 Hz, 60 Hz ±1 % 10mm -25°C CAS +70°C 32mm
RS Stock No. 198-841
Mfr. Part No.AT 5 B5
BrandLEM
MYR297.94
Each
units
- 5A - - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT +60°C 36.5mm
RS Stock No. 446-0636
Mfr. Part No.DK 300 B420
BrandLEM
MYR1,596.13
Each
units
- 300A 4 → 20mA 20 → 50 V dc, 22 → 38 V ac - - Panel Mount - ±1 % 21.7mm -20°C DK +50°C 30mm
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