The VW3AE1503 is a Preventa XPSATE5110 safety module designed to provide Safe Standstill (safe torque off) functionality for Schneider Altivar 61 Plus, Altivar 61 Plus-LH, Altivar 71 Plus, and Altivar 71 Plus-LH drives. It's a relay-type accessory that interfaces with the drive's safety circuit to prevent unintended restart during maintenance or hazard zone access. The module requires a 24 V DC buffer voltage to maintain its safety state.
Sourcing reality for an obsolete safety module
If you're freezing a BOM that lists the VW3AE1503, the first question is whether you can migrate the safety circuit to a current-generation Schneider safety relay (like the Preventa XPS series) or integrate the safe torque-off function directly into a newer Altivar drive. That's a controls-engineering decision, not a sourcing one — but the sooner you know, the less risk of a last-minute line-down situation.
The VW3AE1503 mounts inside the Altivar floor-standing enclosure with separate air flows or the compact version. It's not a standalone panel-mount relay — it's designed as a drive-integrated safety module, so the physical fit is tied to the drive enclosure. If you're replacing one in an existing panel, verify the enclosure variant matches the 'separate air flows or compact version' destination specified by Schneider. Wiring runs at 24 V DC buffer voltage, which powers the safety loop. The module itself is a relay type, so it switches the safety demand signal rather than carrying motor power. That keeps the safety circuit isolated from the drive's power stage.