The Kawasaki PRBU-3 Zener Diode Barrier Unit Safety Relay Module provides a barrier-based safety interface for robot control circuits, using zener diodes to isolate and protect safety signals. This safety relay module is intended for integration into Kawasaki robot systems to support reliable, fail-safe signaling in safety-related control paths. Model PRBU-3 is part of Kawasaki’s safety hardware lineup and is used to interface safety devices and controllers within automation setups where clear, discrete safety signals are required.
