Pilz
Safety Relays
Safety relays provide continuous monitoring and instant interlocking of critical protective functions on your automated machines.
Built on redundant fail-safe architectures, they handle emergency stops, light curtains, guard doors and two-hand controls, as with the flagship Pilz PNOZ and Schneider Electric Preventa XPS series.
Discover our range of new, refurbished and tested safety relays to ensure regulatory compliance and full protection of your operators.
Since 2007
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Why buy/repair from 2Tech rather than replacing with new?
Guaranteed compatibility
Save up to 70%
Controlled lead times
The advantages
- Independence vs. manufacturer
- 15 specialized technicians
- Component-level repair
- CSR approach to combat obsolescence
FAQ
Unlike a conventional relay whose contacts can weld shut in the event of a failure, a safety relay (such as Pilz PNOZ X3 or Schneider XPSU) uses a redundant internal structure with mechanically linked (force-guided) contacts. In the event of an internal fault or an emergency stop being opened, it guarantees safe disconnection of power to the actuators.
Malfunctions most often show up as inability to reset the safety circuit (RESET LED stays inactive), an internal processor/monitoring channel error flashing, or output contacts refusing to close even though all input conditions (emergency stop, guards) are met.
Yes, modern ranges such as Schneider Preventa XPSU multifunction relays or Pilz PNOZ modules easily replace older part numbers. You should check the required performance level (SIL / Performance Level), the number of input channels and the number of safety output contacts needed.
Every refurbished safety relay goes through a series of rigorous tests on a dedicated bench: validation of input channel redundancy, emergency stop simulation, measurement of the disconnection response time, electrical insulation check and real-load testing of the output contacts.
Unlike a conventional relay whose contacts can weld shut in the event of a failure, a safety relay (such as Pilz PNOZ X3 or Schneider XPSU) uses a redundant internal structure with mechanically linked (force-guided) contacts. In the event of an internal fault or an emergency stop being opened, it guarantees safe disconnection of power to the actuators.
Malfunctions most often show up as inability to reset the safety circuit (RESET LED stays inactive), an internal processor/monitoring channel error flashing, or output contacts refusing to close even though all input conditions (emergency stop, guards) are met.
Yes, modern ranges such as Schneider Preventa XPSU multifunction relays or Pilz PNOZ modules easily replace older part numbers. You should check the required performance level (SIL / Performance Level), the number of input channels and the number of safety output contacts needed.
Every refurbished safety relay goes through a series of rigorous tests on a dedicated bench: validation of input channel redundancy, emergency stop simulation, measurement of the disconnection response time, electrical insulation check and real-load testing of the output contacts.