The VW3AP1503 is a factory-assembled emergency stop button module for Schneider Altivar Process ATV600 and ATV900 compact drive systems. It combines one mushroom-head emergency stop push-button and one safety relay into a single control accessory that delivers SIL 3 stop category 1 performance.
Safety function and deployment context
Rated SIL 3 stop category 1, the VW3AP1503 is designed for safety circuits that require a controlled stop with power removal after the stop is achieved. In a drive system, this means the safety relay monitors the E-stop push-button and commands the drive to coast or ramp to stop depending on the category 1 wiring scheme. Mounts inside the standard drive enclosure — no separate panel cutout needed.
