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 138-3482
製造零件編號HO 250-S/SP30-0100
BrandLEM
HK$160.23
單位
Open Loop -625 → 625A 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 452-9476
製造零件編號DK 300 B10
BrandLEM
HK$2,718.03
單位
- 300A - 20 → 50 V dc, 22 → 38 V ac - - Panel Mount - ±1 % 21.7mm -20°C DK +50°C 30mm
RS庫存編號 198-829
製造零件編號AT 20 B5
BrandLEM
HK$439.61
單位
- 20A - - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT +60°C 36.5mm
RS庫存編號 914-5288
製造零件編號CT132TRAN100A-4/20MA
BrandHOBUT
HK$410.38
單位
- 100A 4 → 20mA 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 175-0490
製造零件編號2907888
HK$92.20
單位
- - - - - - - - - - - PACT RCP - -
RS庫存編號 497-340
製造零件編號HOP 400-SB
BrandLEM
HK$1,265.64
單位
Open Loop ±600A - 12 → 15 V - Hall Effect Busbar, Panel Mount DC to 8 kHz ±2 % 41 x 12.5mm -10°C HOP +70°C 32.4mm
RS庫存編號 337-2746
製造零件編號2814728
HK$4,002.79
單位
- 0 → 55A 0 → 20mA 20 → 30 V dc - - Chassis Mount 15 → 400 Hz <0.5 % - -20°C MCR-S10-50-UI-DCI-NC +60°C 114.5mm
RS庫存編號 177-4927
製造零件編號ATO-63-B333-D10
BrandLEM
HK$413.76
單位
- 63A - - Split Core - DIN Rail 1.5 kHz - 10mm -10°C ATO +55°C 32mm
RS庫存編號 527-8731
製造零件編號DHR 600 C10
BrandLEM
HK$1,856.40
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 321-6292
製造零件編號LAH 50-P
BrandLEM
HK$206.81
單位
Closed Loop 50A 25mArms 12 → 15 V - Hall Effect PCB Mount DC to 200 kHz ±0.25 % - -25°C LAH +85°C 14.93mm
RS庫存編號 793-4635
製造零件編號LA 150-P
BrandLEM
HK$255.68
單位
Closed Loop 150A 75mA 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 177-4925
製造零件編號ATO-32-B333-D10
BrandLEM
HK$413.76
單位
- 32A - - Split Core - DIN Rail 1.5 kHz - 10mm -10°C ATO +55°C 32mm
RS庫存編號 527-8618
製造零件編號DHR 200 C420
BrandLEM
HK$1,702.93
單位
Open Loop 200A 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 527-8719
製造零件編號DHR 500 C420
BrandLEM
HK$1,930.00
單位
Open Loop 500A 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 177-4924
製造零件編號ATO-16-B333-D10
BrandLEM
HK$461.31
單位
- 16A - - Split Core - DIN Rail 1.5 kHz - 10mm -10°C ATO +55°C 32mm
RS庫存編號 136-1506
製造零件編號TLI4970D050T4XUMA1
BrandInfineon
HK$50.533
個 (在毎卷:2000)
單位
- 20 - 3.1 → 3.5 V - Hall Effect Surface Mount 18 kHz 1.6 % - -40°C TLI4970 +85°C 1mm
RS庫存編號 820-0444
製造零件編號2904923
HK$3,069.40
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 446-0579
製造零件編號AKR 50 B420L
BrandLEM
HK$3,914.54
單位
- 50A 4 → 20mA 24 V dc, 150 V ac - - Panel Mount 10 → 400 Hz ±1 % 21.7mm -20°C AKR +50°C 30mm
RS庫存編號 435-8757
製造零件編號HX 10-NP
BrandLEM
HK$116.00
單位
Open Loop ±60A - 15 V - Hall Effect PCB Mount 50 kHz ±1 % 1mm -25°C HX +85°C 15.4mm
RS庫存編號 451-1374
製造零件編號LF 306S
BrandLEM
HK$510.81
單位
Closed Loop 0 → 500A 150mArms 12 → 15 V - Hall Effect Panel Mount DC to 100 kHz ±0.4 % 25.5mm -25°C LF +70°C 15.7mm