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. 497-182
Mfr. Part No.HASS 50-S
BrandLEM
R 327.97
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. 286-361
Mfr. Part No.LV 25-P
BrandLEM
R 1,355.32
Each
units
- Closed Loop 0 → 14 25mA 12 → 15 V - - Hall Effect PCB Mount - ±0.9 % - 0°C LV
RS stock no. 180-7357
Mfr. Part No.LA 55-P
BrandLEM
R 532.41
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. 121-8178
Mfr. Part No.CSLA2EL
BrandHoneywell
R 672.28
Each
units
- - 20 Maximum of 550A 6 → 12 V dc - - Hall Effect PCB Mount - - - -25°C CSL
RS stock no. 446-0591
Mfr. Part No.DK 100 B10
BrandLEM
R 4,756.45
Each
units
- Open Loop 100A - 20 → 50 V dc - - Hall Effect Panel Mount - ±2 % 21.7mm -20°C DK
RS stock no. 169-7654
Mfr. Part No.CSLA2EL
BrandHoneywell
R 536.126
Each (In a Box of 50)
units
- - - Maximum of 550A 6 → 12 V dc - - Hall Effect PCB Mount - - - -25°C CSL
RS stock no. 321-6315
Mfr. Part No.LTS 15NP
BrandLEM
R 293.61
Each
units
- Closed Loop 0 → ±48A - 5 V - - Hall Effect PCB Mount DC 100 to 200 kHz ±0.2 % 3.2mm -40°C LTS
RS stock no. 301-9502
Mfr. Part No.HAS 200S
BrandLEM
R 523.36
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. 793-4632
Mfr. Part No.ATO-75BILD10
BrandLEM
R 350.31
Each
units
- - 90A 90mA - - - - - 50 Hz, 60 Hz ±1 % 10mm -25°C CAS
RS stock no. 793-4581
Mfr. Part No.HLSR 32-P
BrandLEM
R 107.82
Each
units
- Open Loop 80A 32A 4.5 → 5.5 V - - Hall Effect PCB Mount 400 kHz ±1 % - -40°C HLSR
RS stock no. 286-311
Mfr. Part No.LA 25-NP
BrandLEM
R 475.71
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. 198-835
Mfr. Part No.AT 20 B10
BrandLEM
R 839.35
Each
units
- - 20A - - - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT
RS stock no. 301-9495
Mfr. Part No.HAS 100S
BrandLEM
R 353.15
Each
units
- Open Loop ±300A - 15 V - - Hall Effect Panel Mount DC to 50 kHz ±1 % 20.4 x 10.4mm -10°C HAS
RS stock no. 301-9473
Mfr. Part No.LTS 25NP
BrandLEM
R 273.02
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. 321-6309
Mfr. Part No.LAH 100-P
BrandLEM
R 275.72
Each
units
- Closed Loop 100A 50mArms 12 → 15 V - - Hall Effect PCB Mount DC to 200 kHz ±0.25 % - -25°C LAH
RS stock no. 820-0444
Mfr. Part No.2904923
R 5,312.11
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-D190
RS stock no. 793-4584
Mfr. Part No.HLSR 10-P
BrandLEM
R 185.20
Each
units
- Open Loop 25A 10A 4.5 → 5.5 V - - Hall Effect PCB Mount 400 kHz ±1 % - -40°C HLSR
RS stock no. 499-5485
Mfr. Part No.HTB 100-P
BrandLEM
R 268.45
Each
units
- Open Loop ±300A - 12 → 15 V - - Hall Effect PCB Mount DC to 50 kHz ±1 % 16mm -20°C HTB
RS stock no. 179-6667
Mfr. Part No.LA 100-P
BrandLEM
R 573.12
Each
units
- Closed Loop 0 → 150A 50mArms 12 → 15 V - - Hall Effect PCB Mount DC to 200 kHz ±0.7 % 12.7 x 7mm -40°C LA
RS stock no. 198-829
Mfr. Part No.AT 20 B5
BrandLEM
R 839.35
Each
units
- - 20A - - - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT