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IFM N0031A Switching amplifiers for Namur sensors


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SKU: N0031A Categories: , Tag:


  • For the operation of intrinsically safe sensors in hazardous areas
  • Reliable short-circuit and wire-break monitoring
  • Easy programming of the output function
  • LED
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Application short-circuit monitoring; Wire monitoring
Electrical data
Operating voltage tolerance [%] -10…10
Operating voltage [V] < 230 AC
Max. power consumption [VA] 1
Number of channels 1
Electrical design relay; (1 changeover contact)
Contact rating 253 V AC / 2 A / cos phi > 0,7 // 40 V DC / 2 A; (ohmic resistance)
Switching frequency AC [Hz] 10
Operating conditions
Ambient temperature [°C] -20…60
Protection IP 20
Tests / approvals
Approval PTB 02 ATEX 2035; IECEx PTB 17.0023
ATEX marking
II (1) G [Ex ia Ga] IIC

II (1) D [Ex ia Da] IIIC
EN 50081-2 (1993)
EN 61326-1 (2006)
MTTF [years] 458
Mechanical data
Weight [g] 193.5
Switching cycles mechanical 10 million
Displays / operating elements
switching status LED, yellow
operation LED, green
function LED, red
Caution The control monitor must be mounted outside the hazardous area.
Free terminals must not be used.
Pack quantity 1 pcs.
Electrical connection
Connection terminals: …2.5 mm²
Other data
Maximum values for control circuit
in protection rating intrinsic safety[EEx ia] IIC[EEx ia] IIB[EEx ib] IIC[EEx ib] IIB
Voltage [V]10.610.610.610.6
Current [mA]
Power [mW]51515151
External inductance [mH]9739097390
External capacitance [µF]2.3216.22.3216.2

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