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Witt Sensoric GmbH

AOS 4000 safety processing unit

  • safety category 3
  • two safety circuits
  • one OSE-input and one 8k2-input
  • positively driven safety-relays
  • signal contact with pulse function
  • power-/function-display-LEDs

The AOS 4000 was developed as a universally applicable safety processing unit for our "SIGNAL" and LOW-POWER-SIGNAL series as well as other common optoelectronic safety edges and 8k2-contact bars. The AOS 4000 can also be used as a safety processing unit with our pull-in protection series TWIN-PRO.

The AOS 4000 can easily be integrated into the existing control unit as an additional safety function.

Operating voltage:
230 VAC and 24 VAC

ordering details
model operating voltage order number
AOS 4230 230VAC 314759
AOS 4024 24 VAC 314760


For further technical details please refer to the following datasheet:

PDF AOS4230_sicherheitsauswerter_safety_processing_unit.pdf

PDF AOS4024AC_sicherheitsauswerter_safety_processing_unit.pdf