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  1. Products
  2. N0538A

Switching amplifiers for Namur sensors

N0538A

NV1223/24VDC/OK/1D/1G

Switching amplifiers for Namur sensors

N0538A

NV1223/24VDC/OK/1D/1G

  • For the operation of intrinsically safe sensors in hazardous areas
  • Reliable short-circuit and wire-break monitoring
  • Easy programming of the output function
  • LED display to check operation, switching status and function
  • Quick and easy mounting on DIN rail
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PDF data sheet
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Technical details
Product characteristics
Number of inputs and outputs Number of digital outputs: 2
Application
Application short-circuit monitoring; Wire monitoring
Electrical data
Operating voltage tolerance [%] -15...25
Operating voltage [V] 24 DC
Current consumption [mA] < 50
Number of channels 2
Inputs / outputs
Number of inputs and outputs Number of digital outputs: 2
Outputs
Electrical design opto coupler; (bipolar; Voltage: max. 40 V DC)
Number of digital outputs 2
Max. voltage drop switching output DC [V] 3
Max. current load per output [mA] 100
Switching frequency DC [Hz] 5000
Short-circuit proof yes
Operating conditions
Ambient temperature [°C] -20...60
Protection IP 20
Tests / approvals
Approval FIDI 20 ATEX 0022X; IECEx FIDI 20.0003X
ATEX marking II 3 (1) G Ex nA [ia Ga] IIC T4 Gc
II (1) D [Ex ia Da] IIIC
I (M1) [Ex ia Ma] I
EMC
NE 21 (2012)
EN 61326-3-2 (2008)
UL approval
File number UL E521228
Mechanical data
Weight [g] 0.001
Displays / operating elements
Display
switching status 2 x LED, yellow
operation LED, green
function 2 x LED, red
Remarks
Remarks
Caution The switching amplifier has to be mounted according to the requirements of the operating instructions
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 [Ex ia Ga] IIC [Ex ia Ga] IIB [Ex ia Ga] IIA [Ex ia Ma] I
Voltage [V] 10.5 10.5 10.5 10.5
Current [mA] 17.1 17.1 17.1 17.1
Power [mW] 45 45 45 45
External inductance [mH] 121.5 486.3 972.7 1000
or Lo/Ro [mH/Ω] 0.79 3.16 6.33 10.39
External capacitance [µF] 2.41 16.8 75 95
ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — EN-GB — N0538A — 02.12.2021 —