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NORVI X-DA8 (Expansion Module, 8x 230V AC Inputs)

PRODUCT IS CURRENTLY NOT AVAILABLE !
NORVI X-DA8 (Expansion Module, <b>8x 230V AC Inputs</b>)
  • 8x 230V AC Inputs !
  • Optically Isolated !
  • PCA9538 I²C Expander !
  • DIN Rail Mount !

  • 8 optically isolated digital inputs for 230 V AC
  • One common neutral terminal for all eight inputs
  • PCA9538 I²C port expander with four selectable I²C addresses
  • Up to four X-DA8 modules per controller for a total of up to 32 digital inputs
  • Over-voltage, reverse-polarity and ESD protection
  • Switching frequency up to 1 kHz
  • Individual LED status indicators for each input channel
  • Plug-and-play connection via the internal NORVI X expansion bus
  • DIN-rail mounting with push-in terminals
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  • 8 optically isolated digital inputs for 230 V AC
  • One common neutral terminal for all eight inputs
  • PCA9538 I²C port expander with four selectable I²C addresses
  • Up to four X-DA8 modules per controller for a total of up to 32 digital inputs
  • Over-voltage, reverse-polarity and ESD protection
  • Switching frequency up to 1 kHz
  • Individual LED status indicators for each input channel
  • Plug-and-play connection via the internal NORVI X expansion bus
  • DIN-rail mounting with push-in terminals


The NORVI X-DA8 is an expansion module with eight 230 V AC digital inputs for the modular NORVI X controller platform.

Each input is opto-coupler isolated from the CPU side. The integrated PCA9538 I²C port expander transfers input states to the NORVI X CPU module through the internal expansion bus. Four I²C addresses can be selected using DIP switches, allowing up to four X-DA8 modules to be operated on one controller.

Range of productNORVI X
Product type /
Model		Expansion Module for NORVI X Series
NORVI X-DA8
CertificationsEN 61131-2:2007
EN 61010-1:2010+A1:2019
EN IEC 61010-2-201:2018
2014/30/EU- Electromagnetic Compatibility (EMC)
Annex III, Part B, Module C
Dimensions81 x 104 x 23 mm
MountingDIN RAIL
Terminal TypePush-in terminal
EnvironmentIP20
Operating altitude: 0-2000 meters
Storage altitude: 0-3000 meters
Shock resistance: 15 gn for 11ms
Resistance to electrostatic discharge: 4kV on contact / 8kV on air
Resistance to electromagnetic fields: 10 V/m (80 MHz ... 1 GHz)
3 V/m (1.4 GHz ... 2 GHz)
1 V/m (2 GHz ... 3 GHz)
Supply Voltage (V)24V DC
I/O Specification
Number of Inputs8 Digital Inputs
Input TypeIsolated 230 V AC
Isolation Voltage> 1500 Vrms (optical isolation from CPU)
Input ImpedanceApprox. 3.3 k?
Switching FrequencyUp to 1 kHz
ProtectionOver-voltage, Reverse Polarity, ESD Protected
I²C DevicePCA9538 I²C port expander
I²C Address Selection4 selectable addresses: 0x70, 0x71, 0x72, 0x73
Status Indicators8 x LED Input Indicators
Interface to CPUI2C Communication
Communication BusInternal Expansion Bus
Field ConnectorPush-in Terminal Block
AC1-AC8: Digital Inputs 1-8
N: Neutral
Power Supply24 V DC (shared with CPU via expansion port)
Data sheet Download (PDF)
Data sheet Print view
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