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Digital output modules

Efficient modules for digital output signals in hazardous areas
R. STAHL's digital output modules (DOM) are suitable for connecting up to eight intrinsically safe solenoid valves or indicator lamps. The outputs are designed for operating various different solenoid valves and in certain configurations are also suitable for SIL 2 shut down. Relay outputs for non-Ex i signals or integrated pilot valves also feature in the range.

Digital output modules (DOM) can be used to operate four or eight intrinsically safe solenoid and hydraulic valves and indicator elements. The Ex ia/ib output characteristics are optimally configured for a wide range of solenoid valves. An Ex i control input for the system "Off" switch (IEC 61508 up to SIL 2) is also available for the Zone 1 versions.

The Ex i outputs are short-circuit proof and galvanically separated from the system.
A blue LED and diagnostic messages provide early warnings that maintenance is required in order to avoid system downtime.
The Zone 1 versions have additional LEDs for each channel to indicate any line faults and the switching state.

In addition, there are versions with relay outputs for non-Ex i solenoid valves and with eight integrated pilot valves for direct pneumatic connection.

  • Efficient: Four or eight channels for virtually all solenoid valves (Ex i, Ex d, Ex m), or alternatively, integrated pneumatics
  • Ex ia outputs with Ex e or pneumatic connection for installation in Zone 1 or 2 – certain configurations suitable for SIL 2
  • Hot-swappable: Can be replaced while the system is in operation

Filter product lines

Select the product lines that are applicable to your intended use.

Scope
Zones
Min. ambient temperature
Max. ambient temperature
Type of protection (IP)
Version
Ex interface zone
Aux. power max. power cons.
Internal resistiance Ri
Maximum switching voltage

9 Series (13 Products)

Digital Output Module 4-Channel Version for Zone 1 Series 9475/32-04-72

  • Four channels for Ex i hydraulic and solenoid valves up to 95 mA
  • Ex ib outputs with line fault monitoring and LED error and status indication for each channel plus SIL 2 shutdown input
  • modules in Zone 1 can be hot swapped

Digital Output Module 4-Channel Version for Zone 1 Series 9475/32-04-x2

  • Four channels for Ex i solenoid valves up to 40 mA
  • Ex ia outputs with line fault monitoring and LED error and status indication for each channel plus SIL 2 shutdown input
  • modules in Zone 1 can be hot swapped

Digital Output Module 8-Channel Version for Zone 1 Series 9475/32-08-xx

  • Eight channels for Ex i solenoid valves up to 30 mA
  • Ex ia outputs with line fault monitoring and LED error and status indication for each channel plus SIL 2 shutdown input
  • modules in Zone 1 can be hot swapped

Digital Output Module 8-Channel Version for Zone 2 Series 9475/33-08-xx

  • Eight channels for Ex i solenoid valves up to 30 mA
  • Ex ia outputs with line fault monitoring
  • modules in Zone 2 can be hot swapped

Digital Output Module Relay for Zone 1 / Div. 1 Series 9477/12

  • With up to 8 de-energised relay contacts
  • Ex e outputs with a high switching capacity up to 100 VA
  • Module in Zone 1 can be hot swapped

Digital Output Module Valve for Zone 1 Series 9478

  • Eight channels for pneumatic valves
  • pneumatic outputs with integrated 3/2-way valves and SIL 2 shutdown input
  • module in Zone 1 can be hot swapped

Digital Output Module Relay Ex nA Outputs for Zone 2 / Div. 2 Series 9477/15

  • With 8 zero-potential relay contacts
  • Ex ec/nA outputs with a high switching capacity up to 100 VA
  • Module in Zone 2 can be hot swapped

Digital Output Module Series 9475/x2

  • Four channels for Ex i solenoid valves
  • Ex ia outputs with line fault monitoring and optional SIL 2 shutdown input
  • modules in Zone 1 can be hot swapped

Digital Output Module Series 9475/x2-08-xx

  • Eight channels for Ex i solenoid valves
  • Ex ia outputs with line fault monitoring and optional SIL 2 shutdown input
  • modules in Zone 1 can be hot swapped
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