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Product short description:
  • Transmitter, Loop, DC, or AC-Power
  • AC Voltage or AC Current Input
  • DC Voltage or DC Current Output

250T-AC, 350T-AC, 450T-AC: Loop, DC, or AC-Power Transmitter Description

These models convert sensor inputs to proportional process current or voltage output signals.

AC voltage transmitters accept direct voltage inputs. Current models include an external AC current sensor. This toroidal sensor outputs a safe DC milliamp signal which transmits accurately over long distances. Input span is a function of the primary turns placed on the sensor.

Models

250T: Loop-powered transmitter series
350T: DC-powered transmitter series
450T: AC-powered transmitter series

Features & Benefits

  • Excellent accuracy and stability ensure reliable measurements in harsh industrial environments.
  • External AC current sensor with DC mA output enables remote mounting of transmitter (for safe monitoring of the AC signal)
  • AC current range is a function of sensor primary turns for easy rescaling in field
  • Factory-calibrated AC current transmitter does not need recalibration
  • RFI and EMI resistance minimize the effects of environmental noise.
  • Compact, 1-inch wide housing uses less space.
  • Low power consumption. (350T as low as 9mA).
  • 1500V AC peak isolation (250V AC or 354V DC continuous) prevents ground loops.
    250T: Input isolated from output/power
    350T: Input isolated from output and power. Output and power share a common.
    450T: 3-way isolation, input, output, and power circuits are isolated from each other.
  • Operating temperature range: -13 to 185°F (-25 to 85°C)
How to Use a Toroidal AC Current Sensor - 8401044
Using Acromag’s Toroidal AC Current Sensor Model 5020-350 Transmitters with DC current input can be used in conjunction with an external toroidal AC current sensor in order to precondition an AC current input signal. This sensor is a highly accurate toroidal instrument transformer; which converts an AC current signal to a safe, low-level, DC milliampere...

Manuals

250T-CACX User Manual (Log in to download the file)

250T-VAC User Manual (Log in to download the file)

350T-CACX User Manual (Log in to download the file)

350T-VAC User Manual (Log in to download the file)

450T-CACX User Manual (Log in to download the file)

450T-VAC User Manual (Log in to download the file)

  • Compare

    20RM-16-DIN: 19” rack-mount kit with DIN rail

    • 19" rack-mount kit with DIN rail
    Select options
  • Compare

    5020-350: Toroidal AC Current Sensor

    • AC Current Sensor to precondition an AC current input signal
    • Highly accurate toroidal instrument transformer that converts an AC current signal to a safe, low level, DC milliampere signal (0 to 11.17mA).
    Select options
  • Compare

    ACC1014: Flat Pack Mounting Kit

    • Surface mount for 250T, 260A and 270i series
    • Snaptrack mount 250T, 260A and 270i series
    Select options
  • Compare

    DIN Rail: Type T

    • DIN Rail Strip, Type T
    Select options

Additional information

Weight 16 oz
Dimensions 3 × 1 × 3.2 in
Part Number

250T-VAC-DIN-NCR: 0 to 150V AC, 50/60hz AC voltage input; 12 to 50V DC @ 20mA power; DIN rail G or T mount; no certification/approval required, 450T-VAC-Y-1-DIN-NCR: 50/60Hz, 0 to 150V AC voltage; 4 to 20mA DC output; 115V AC power; DIN rail G or T mount; no certification/approval required, 250T-CACX-DIN-NCR: 0 to 20A AC current input; 12 to 50V DC @ 20mA power; DIN rail G or T mount; no certification/approval required. Unit is factory calibrated for fixed range (adjustable by windings of sensor). Includes 5020-350 sensor, 450T-CACX-Y-1-DIN-NCR: 0 to 20A AC current input; 4 to 20mA DC output; 115V AC power; DIN rail G or T mount; no certification/approval required. Unit is factory calibrated for fixed range (adjustable by windings of sensor). Includes 5020-350 sensor

Product Series

FlatPack Series

  • Description

    250T-AC, 350T-AC, 450T-AC: Loop, DC, or AC-Power Transmitter Description

    These models convert sensor inputs to proportional process current or voltage output signals.

    AC voltage transmitters accept direct voltage inputs. Current models include an external AC current sensor. This toroidal sensor outputs a safe DC milliamp signal which transmits accurately over long distances. Input span is a function of the primary turns placed on the sensor.

    Models

    250T: Loop-powered transmitter series
    350T: DC-powered transmitter series
    450T: AC-powered transmitter series

    Features & Benefits

    • Excellent accuracy and stability ensure reliable measurements in harsh industrial environments.
    • External AC current sensor with DC mA output enables remote mounting of transmitter (for safe monitoring of the AC signal)
    • AC current range is a function of sensor primary turns for easy rescaling in field
    • Factory-calibrated AC current transmitter does not need recalibration
    • RFI and EMI resistance minimize the effects of environmental noise.
    • Compact, 1-inch wide housing uses less space.
    • Low power consumption. (350T as low as 9mA).
    • 1500V AC peak isolation (250V AC or 354V DC continuous) prevents ground loops.
      250T: Input isolated from output/power
      350T: Input isolated from output and power. Output and power share a common.
      450T: 3-way isolation, input, output, and power circuits are isolated from each other.
    • Operating temperature range: -13 to 185°F (-25 to 85°C)
  • Tech Papers

    How to Use a Toroidal AC Current Sensor - 8401044
    Using Acromag’s Toroidal AC Current Sensor Model 5020-350 Transmitters with DC current input can be used in conjunction with an external toroidal AC current sensor in order to precondition an AC current input signal. This sensor is a highly accurate toroidal instrument transformer; which converts an AC current signal to a safe, low-level, DC milliampere...
  • Specs & Data Sheets

    Manuals

    250T-CACX User Manual (Log in to download the file)

    250T-VAC User Manual (Log in to download the file)

    350T-CACX User Manual (Log in to download the file)

    350T-VAC User Manual (Log in to download the file)

    450T-CACX User Manual (Log in to download the file)

    450T-VAC User Manual (Log in to download the file)

  • Accessories

    • Compare

      20RM-16-DIN: 19” rack-mount kit with DIN rail

      • 19" rack-mount kit with DIN rail
      Select options
    • Compare

      5020-350: Toroidal AC Current Sensor

      • AC Current Sensor to precondition an AC current input signal
      • Highly accurate toroidal instrument transformer that converts an AC current signal to a safe, low level, DC milliampere signal (0 to 11.17mA).
      Select options
    • Compare

      ACC1014: Flat Pack Mounting Kit

      • Surface mount for 250T, 260A and 270i series
      • Snaptrack mount 250T, 260A and 270i series
      Select options
    • Compare

      DIN Rail: Type T

      • DIN Rail Strip, Type T
      Select options
  • Additional information

    Additional information

    Weight 16 oz
    Dimensions 3 × 1 × 3.2 in
    Part Number

    250T-VAC-DIN-NCR: 0 to 150V AC, 50/60hz AC voltage input; 12 to 50V DC @ 20mA power; DIN rail G or T mount; no certification/approval required, 450T-VAC-Y-1-DIN-NCR: 50/60Hz, 0 to 150V AC voltage; 4 to 20mA DC output; 115V AC power; DIN rail G or T mount; no certification/approval required, 250T-CACX-DIN-NCR: 0 to 20A AC current input; 12 to 50V DC @ 20mA power; DIN rail G or T mount; no certification/approval required. Unit is factory calibrated for fixed range (adjustable by windings of sensor). Includes 5020-350 sensor, 450T-CACX-Y-1-DIN-NCR: 0 to 20A AC current input; 4 to 20mA DC output; 115V AC power; DIN rail G or T mount; no certification/approval required. Unit is factory calibrated for fixed range (adjustable by windings of sensor). Includes 5020-350 sensor

    Product Series

    FlatPack Series