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DIN Rail DC or AC Current Input Signal Conditioners

DC and AC Current Input Signal Conditioners


DC and AC Current Input Signal Conditioners DRF-IAC DRF-IAC
  • AC/DC Current Input Ranges from 0 to 100 mA to 0 to 5 A
  • Accuracy 0.3%
  • Response Time for DC Signals, 70 ms
  • Response Time for AC Signals, 250 ms

The DRF series DIN rail signal conditioners are designed to accept a broad range of input signals, such as ac and dc voltage and current, frequency, temperature (thermocouple and RTD), and process transducers, and provide standard process outputs of either 4 to 20 mA, or 0 to 10 Vdc. The DRF series feature a modern housing design, that is easily mounted on standard 35 mm DIN rails. Connections are safely and securely made through pluggable screw terminal connectors, with input and output connections on the opposite sides of the module.

The DRF-IDC and the DRF-IAC current signal conditioners accept dc and ac currents respectively and provide an isolated 0 to 10 Vdc or 4 to 20 mA output. Models are available with three different power options, 24 Vdc, 120 Vac and 240 Vac. The DRF-IDC and DRF-IAC are ideally suited for industrial applications. All models mount on a standard 35 mm DIN rail and provide galvanic isolation between input, output and power up to 3500 Veff (model specific).

Range Code Table
Range CodeDRF IDC RangeDRF IAC Range
100MA0 to 100 mAdc0 to 100 mAac
200MA0 to 200 mAdc0 to 200 mAac
300MA0 to 300 mAdc0 to 300 mAac
1A0 to 1 Adc0 to 1 Aac
2A0 to 2 Adc0 to 2 Aac
3A0 to 3 Adc0 to 3 Aac
5A0 to 5 Adc0 to 5 Aac


Accuracy: <0.3% full scale
Linearity: <0.2% full scale
Thermal Drift: 250 ppm/°C typical (max <200ppm/°C)
Response Time(90% of signal)
DC Signal Input Models: < 70mS at 20Hz -3dB
AC SignalInput Models: <250mS
Maximum AC Frequency: 1 KHz
Input Impedance: 1Ω for ranges <5 A, 0.02 Ω for ranges <1 A
Over Range Protection: 7.5 A for ranges greater than 500 mA and less than or equal to 5 A, 750 mA for ranges less than and equal to 500 mA

Power: 24 Vdc ±10%, 230 Vac ±10% 50/60 Hz, 115 Vac ±10% 50/60 Hz
Power Consumption: <3.8 VA

Output: 4 to 20 mA and 0 to 10 Vdc
Maximum Voltage Output: 11 Vdc approx.
Minimum Voltage Output: -1 Vdc approx.
Minimum Load Resistance (Voltage): >1 KΩ Maximum Current Output: 22 mA approx.
Maximum Current Output: -1.5 mA approx.
Maximum Load Resistance (current): >400 Ω
Electrical Connections: Plug-in screw terminals
Protection: IP-30

(DC Powered Models): 120 g (4.2 oz)
(AC Powered Models): 200 g (7 oz)
(DC Powered models):
110 H x 22.5 W x 93 mm D (4.3 x 0.9 x 3.7")
(AC Powered models):
110 H x 37 W x 93 mm D (4.3 x 1.46 x 3.7")
Operating Temperature: 0 to 60°C (32 to 140°F)
Storage Temperature: -20 to 70°C (-4 to 158°F)
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