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庫存編號 793-4626
製造零件編號LA 130-P
BrandLEM
HK$213.77
單位
Closed Loop 130A 130mA 12 → 15 V - Hall Effect PCB Mount 150 kHz <0.5 % 13.5 x 10mm -40°C LA +85°C 16mm
RS庫存編號 198-835
製造零件編號AT 20 B10
BrandLEM
HK$448.67
單位
- 20A - - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT +60°C 36.5mm
RS庫存編號 527-8551
製造零件編號DHR 400 C10
BrandLEM
HK$1,930.00
單位
Open Loop 400A - 20 → 50 V dc - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR +70°C 25mm
RS庫存編號 532-9205
製造零件編號HTFS 200-P
BrandLEM
HK$213.38
單位
Open Loop ±300A - 5 V - Hall Effect PCB Mount DC → 240 kHz ±1 % 22mm -40°C HTFS +105°C 17mm
RS庫存編號 527-8602
製造零件編號DHR 1000 C420
BrandLEM
HK$1,985.50
單位
Open Loop 1000A 4 → 20mA 20 → 50 V dc - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR +70°C 25mm
RS庫存編號 763-9769
製造零件編號CDS4015ABC-KA
BrandSensitec
HK$287.54
單位
- 15A 6mA 5 V - AMR Effect PCB Mount DC to 400 kHz 0.8 % - -40°C CDS4000 +105°C 15.5mm
RS庫存編號 820-0444
製造零件編號2904923
HK$2,521.60
單位
- 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 +80°C 85mm
RS庫存編號 820-0431
製造零件編號2904921
HK$2,559.80
單位
- 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庫存編號 138-3462
製造零件編號HO 15-NSM-0000
BrandLEM
HK$74.35
單位
Open Loop -37.5 → 37.5A 19 → 25mA 4.5 → 5.5 V - - Panel Mount 250 kHz ±1 % 18mm -40°C HO +105°C 12mm
RS庫存編號 359-3252
製造零件編號LAH 25-NP/SP3
BrandLEM
HK$245.00
單位
- 25A - - - - - - - - - LAH - -
RS庫存編號 138-3458
製造零件編號HO 8-NSM-0000
BrandLEM
HK$74.35
單位
Open Loop -20 → 20A 19 → 25mA 4.5 → 5.5 V - - Panel Mount 250 kHz ±1 % 18mm -40°C HO +105°C 12mm
RS庫存編號 497-277
製造零件編號HTR 100-SB
BrandLEM
HK$961.42
單位
Open Loop ±200A - 12 → 15 V - Hall Effect Busbar, Panel Mount DC to 10 kHz ±2 % 21mm -10°C HTR +70°C 21.5mm
RS庫存編號 446-0440
製造零件編號AK 5 B420L
BrandLEM
HK$3,578.16
單位
- 5A 4 → 20mA 24 V dc, 150 V ac - - Panel Mount 20 → 100 Hz ±1 % 21.7mm -20°C AK +50°C 30.2mm
RS庫存編號 914-5310
製造零件編號CT132TRAN10A-5/10V
BrandHOBUT
HK$280.97
單位
- 10A - 15 → 30 V - Loop Sensor DIN Rail 45 → 65 Hz Class 0.5 % 21mm -15°C CT132TRAN +50°C 30mm
RS庫存編號 446-0557
製造零件編號AKR 200 C420L
BrandLEM
HK$2,128.00
單位
- 200A 4 → 20mA 24 V dc, 150 V ac - - Panel Mount 10 → 400 Hz ±1 % 19mm -20°C AKR +50°C 23.7mm
RS庫存編號 527-8567
製造零件編號DHR 500 C10
BrandLEM
HK$1,930.00
單位
Open Loop 1800A - 20 → 50 V dc - Hall Effect Panel Mount DC 20 to 6000 Hz ±1 % 32mm -40°C DHR +70°C 25mm
RS庫存編號 138-3470
製造零件編號HO 60-P-0100
BrandLEM
HK$119.42
單位
Open Loop -150 → 150A 19 → 25mA 4.5 → 5.5 V - - Panel Mount 100 kHz ±1.25 % 15 x 8mm -40°C HO +105°C 18mm
RS庫存編號 138-3476
製造零件編號HO 150-S/SP30-0100
BrandLEM
HK$140.25
單位
Open Loop -375 → 375A 19 → 25mA 4.5 → 5.5 V - - Panel Mount 100 kHz ±1 % 15 x 8mm -40°C HO +105°C 40.8mm
RS庫存編號 666-8201
製造零件編號CKSR 15-NP
BrandLEM
HK$162.00
單位
Closed Loop 15A - 5.25 V - - PCB Mount 200 → 300 kHz ±0.8 % - -40°C CKSR +105°C 13.4mm
RS庫存編號 301-9502
製造零件編號HAS 200S
BrandLEM
HK$210.49
單位
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