Distribution modules for easy connection

Schmersal safety signal distribution modules are intended for connection of safety devices to safety modules or controllers. With their help, you will significantly reduce installation costs, as they allow easy connection of safety sensors and safety switches.

Reduce installation costs

Schmersal developed two types of distribution modules – the PFB and PDM models, which differ in terms of environmental protection. All connected safety devices are individually protected by electronic fuses with automatic reset. The status of all connected devices can be easily monitored via built-in LEDs.

Both types of modules are available with individual diagnostic signals or with an SD (Serial Diagnostic) bus. Up to 4 safety sensors or safety switches with electronic output lock (OSSD) can be connected to each module, which enable serial connection. The configuration of the modules is easily set via DIP switches.

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Choose the right type of equipment

Schmersal distributon modules

The passive distributors for installation in switching cabinets or terminal boxes and the fieldboxes for field wiring with protection class IP67 are suitable for series wiring of different kinds of electronic safety switchgear such as sensors and interlocks.

With the passive installation systems it is possible to realise mixed series connection of electronic safety sensors and interlocks from Schmersal. The distributors and fieldboxes are available in different versions for parallel IO wiring and for wiring to the Schmersal SD interface.

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PDM distribution module

  • Installation in a switching cabinet or in terminal boxes
  • Mixed series connection possible of 4 safety sensors
  • Several modules can be switched in series
  • Individual protection of safety switchgear
  • Can be configured easily via DIP switches
  • Individual diagnosis and actuation of connected switchgear
  • Wiring via spring-type terminals
  • Compact design with a 45 mm width
  • Available for parallel IO wiring and SD interface
Schmersal PDM distributon modules

Passive fieldboxes PFB

Schmersal PFB distributon modules
  • Heavy duty IP67 version for installation in the field
  • Mixed series connection possible of 4 safety sensors or interlocks with M12 connector
  • Fieldboxes can be connected in series for higher safety
  • Individual protection of safety switchgear for every device connected
  • Can be configured easily via DIP switches
  • Individual diagnosis and actuation of connected switchgear
  • Voltage supply via new M12 power plug with cross section of 1.5 mm²/10 A
  • Compact fieldbox with dimensions 63 mm x 156 mm
  • Available for parallel IO wiring and SD interface

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Schmersal distributon modules

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