The Schneider Electric VW3AP0502 is an enclosure heater accessory for the Altivar Process ATV600 and ATV900 drive series, sized for drive systems rated 200 to 500 kW. It ships as a kit containing one enclosure heater, one thermostat, and one 6 A circuit-breaker — everything needed to keep condensation out of a large drive cabinet in humid or cold environments.
Sourcing constraint — not a standalone buy
This part cannot be ordered alone; it is only available in combination with a standard enclosure from the same drive system family. That means if you are retrofitting an existing ATV600 or ATV900 cabinet that already has its own enclosure, this heater kit is not the route — you would source a generic panel heater instead. For a new drive system build, the enclosure order includes this as a line item.
Lifecycle and production status
No successor part has been announced, and the mature tag typically means the design is settled — no surprise form-factor changes mid-production.
The 6 A circuit-breaker integrated into the kit protects the heater circuit against overcurrent — it is not a main drive breaker, just local protection for the heater branch. The thermostat provides automatic temperature regulation inside the enclosure, switching the heater on when internal temperature drops below the setpoint. This prevents condensation on drive electronics in unheated machine rooms or outdoor-rated cabinets. Rated for drive systems 200 to 500 kW — that power band covers the larger ATV600 and ATV900 frames where cabinet volume is big enough to need active condensation control.