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 analogue ammeter, a digital 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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Osan tiedot Merkki Stock Sensor Technology Nominal Current Output Current Range Supply Voltage Sensor Type Mounting Type Frequency Bandwidth Bore Size Accuracy Series Minimum Operating Temperature Maximum Operating Temperature Depth Height Width Output Voltage Range Standards Met Maximum Output Voltage Minimum Output Voltage
LEM ATO Series Current Transducer, 10A nominal current
  • RS-tuotekoodi 177-4923
  • Merkki LEM
  • Valmistajan tuotenumero ATO-10-B333-D10
LEM 39 - 10A - - - DIN Rail 1.5 kHz 10mm - ATO -10°C +55°C 32mm 45.5mm 33.5mm - - - -
LEM ATO Series Current Transducer, 32A nominal current
  • RS-tuotekoodi 177-4925
  • Merkki LEM
  • Valmistajan tuotenumero ATO-32-B333-D10
LEM 30 - 32A - - - DIN Rail 1.5 kHz 10mm - ATO -10°C +55°C 32mm 45.5mm 33.5mm - - - -
LEM ATO Series Current Transducer, 50A nominal current
  • RS-tuotekoodi 177-4926
  • Merkki LEM
  • Valmistajan tuotenumero ATO-50-B333-D10
LEM 20 - 50A - - - DIN Rail 1.5 kHz 10mm - ATO -10°C +55°C 32mm 45.5mm 33.5mm - - - -
LEM ATO Series Current Transducer, 63A nominal current
  • RS-tuotekoodi 177-4928
  • Merkki LEM
  • Valmistajan tuotenumero ATO-63-B333-D16
LEM 13 - 63A - - - DIN Rail 1.5 kHz 16mm - ATO -10°C +55°C 33.2mm 56.1mm 40.8mm - - - -
LEM ATO Series Current Transducer, 100A nominal current
  • RS-tuotekoodi 177-4929
  • Merkki LEM
  • Valmistajan tuotenumero ATO-100-B333-D16
LEM 10 - 100A - - - DIN Rail 1.5 kHz 16mm - ATO -10°C +55°C 33.2mm 56.1mm 40.8mm - - - -
LEM ATO Series Current Transducer, 16A nominal current
  • RS-tuotekoodi 177-4924
  • Merkki LEM
  • Valmistajan tuotenumero ATO-16-B333-D10
LEM 3 - 16A - - - DIN Rail 1.5 kHz 10mm - ATO -10°C +55°C 32mm 45.5mm 33.5mm - - - -
LEM ATO Series Current Transducer, 63A nominal current
  • RS-tuotekoodi 177-4927
  • Merkki LEM
  • Valmistajan tuotenumero ATO-63-B333-D10
LEM 1 - 63A - - - DIN Rail 1.5 kHz 10mm - ATO -10°C +55°C 32mm 45.5mm 33.5mm - - - -
Current transformer w/LOHET I sensor,57A Honeywell 0 - - - - - - - - - - - - - - - - - - -
LEM ATO Series Current Transducer, 125A nominal current
  • RS-tuotekoodi 177-4930
  • Merkki LEM
  • Valmistajan tuotenumero ATO-125-B333-D16
LEM 0 - 125A - - - DIN Rail 1.5 kHz 16mm - ATO -10°C +55°C 33.2mm 56.1mm 40.8mm - - - -
LEM DVC Series Voltage Current Transducer
  • RS-tuotekoodi 177-4931
  • Merkki LEM
  • Valmistajan tuotenumero DVC 1000-P
LEM 0 Voltage - - 4.75 → 5.25 V - PCB Mount 47 kHz - ±1.5 % DVC -40°C +85°C 37mm 23.5mm 43mm 0.5 → 4.5V - 4.5V 0.5V
Infineon TLV493D Series Current Sensor, 3.7 mA nominal current
  • RS-tuotekoodi 136-1510
  • Merkki Infineon
  • Valmistajan tuotenumero TLV493DA1B6HTSA2
Infineon 2860 - 3.7 mA - 2.8 → 3.5 V Hall Effect Surface Mount - - - TLV493D -40°C +125°C 1mm 2.9mm 1.6mm - IEC, UL - -
Infineon TLI4970 Series Current Sensor, 20 nominal current
  • RS-tuotekoodi 136-1506
  • Merkki Infineon
  • Valmistajan tuotenumero TLI4970D050T4XUMA1
Infineon 1930 - 20 - 3.1 → 3.5 V Hall Effect Surface Mount 18 kHz - 1.6 % TLI4970 -40°C +85°C 1mm 7mm 7mm - IEC, UL - -
Infineon TLI4970 Series Current Sensor, 20 nominal current
  • RS-tuotekoodi 136-1504
  • Merkki Infineon
  • Valmistajan tuotenumero TLI4970D050T5XUMA1
Infineon 1923 - 20 - 3.1 → 3.5 V Hall Effect Surface Mount 18 kHz - 3.5 % TLI4970 -40°C +85°C 1mm 7mm 7mm - IEC, UL - -
Infineon TLI4970 Series Current Sensor, 20 nominal current
  • RS-tuotekoodi 136-1505
  • Merkki Infineon
  • Valmistajan tuotenumero TLI4970D025T4XUMA1
Infineon 1812 - 20 - 3.1 → 3.5 V Hall Effect Surface Mount 18 kHz - 1.6 % TLI4970 -40°C +85°C 1mm 7mm 7mm - IEC, UL - -
Infineon TLI4970 Series Current Sensor, 20 nominal current
  • RS-tuotekoodi 136-1503
  • Merkki Infineon
  • Valmistajan tuotenumero TLI4970D025T5XUMA1
Infineon 1116 - 20 - 3.1 → 3.5 V Hall Effect Surface Mount 18 kHz - 3.5 % TLI4970 -40°C +85°C 1mm 7mm 7mm - IEC, UL - -
LEM HXS Series Open Loop Current Sensor, ±60A nominal current
  • RS-tuotekoodi 532-9081
  • Merkki LEM
  • Valmistajan tuotenumero HXS 10-NP/SP3
LEM 730 Open Loop ±60A - 5 V Hall Effect PCB Mount DC to 50 kHz - ±1 % HXS -40°C +85°C 18.7mm 10.7mm 16.7mm - - - -
LEM LTSR Series Closed Loop Current Sensor, 0 → ±80A nominal current
  • RS-tuotekoodi 499-5378
  • Merkki LEM
  • Valmistajan tuotenumero LTSR 25-NP
LEM 637 Closed Loop 0 → ±80A - 5 V Hall Effect PCB Mount DC 100 to 200 kHz 3.2mm ±0.2 % LTSR -40°C +85°C 10mm 24mm 22.2mm - - - -
LEM CASR Series Closed Loop Current Sensor, 6A nominal current
  • RS-tuotekoodi 666-8182
  • Merkki LEM
  • Valmistajan tuotenumero CASR 6-NP
LEM 406 Closed Loop 6A - 5.25 V - PCB Mount 200 → 300 kHz - ±0.8 % CASR -40°C +85°C 13.4mm 16.5mm 21.91mm - - - -
LEM LA Series Closed Loop Current Sensor, 0 → 70A nominal current, 50mArms output current
  • RS-tuotekoodi 180-7357
  • Merkki LEM
  • Valmistajan tuotenumero LA 55-P
LEM 317 Closed Loop 0 → 70A 50mArms 12 → 15 V Hall Effect PCB Mount DC to 200 kHz - ±0.9 % LA -40°C +85°C 14.45mm 27.6mm 36.6mm - - - -
LEM HX Series Open Loop Current Sensor, ±30A nominal current
  • RS-tuotekoodi 435-8707
  • Merkki LEM
  • Valmistajan tuotenumero HX 10-P/SP2
LEM 315 Open Loop ±30A - 12 → 15 V Hall Effect PCB Mount 50 kHz 1.1mm ±1 % HX -25°C +85°C 15.4mm 20.5mm 19mm - - - -
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