315 kW HVAC drive with real-world overload headroom
The 6SL3220-1YE56-1CP0 is a SINAMICS G120X infrastructure converter rated 315 kW on a 380-480 V 3-phase supply, with a 135% overload for 3 seconds and 110% for 60 seconds — that extra 10% continuous headroom over the standard 100% duty cycle matters when a cooling tower fan hits a gust or a pump sees a transient demand spike. This is the HVAC/water/wastewater variant of the G120 family, built for pump and fan loads where the drive lives in a panel room, not a machine cabinet. The IP20 / UL open type enclosure suits a clean electrical room; no washdown rating needed here.
Built-in RFI filter and PROFIBUS — less panel wiring
The integrated RFI suppression filter is rated for Category C3 (industrial environment, second environment per EN 61800-3). That saves an external filter and the associated panel space and wiring — one less thing to land on a midnight startup. Fieldbus is onboard PROFIBUS DP. No option module to slot in, no bus connector to add — the drive arrives ready to talk to a Siemens S7-300/400 or any PROFIBUS master. The IO expansion is also included, so you get the base I/O without a separate terminal board.
Active production, made-to-order — plan the lead time
The lifecycle status is active, but this is a Product class C item — manufactured to order, not a stock-keeping SKU on a distributor shelf. That means the lead time is set by the production queue, not a warehouse pick. Budget for the build cycle when you're planning a panel shop order or a line-down replacement. Export control is AL:N / ECCN:EAR99H, so it ships without an export license for most destinations. RoHS compliant since March 2020, with a REACH Article 33 declaration for lead content above 0.1% — the documentation package includes the substance declaration if your downstream compliance team needs it.
What the 315 kW rating means for a real pump or fan
At 380 V, 315 kW corresponds to roughly 560 A full-load motor current for a standard efficiency motor — the drive's output stage is sized for that continuous current plus the 135% short-term overload. For a variable-torque load like a centrifugal pump or fan, the drive rarely hits full current except during acceleration, so the thermal capacity is generous. The 110% continuous overload for 60 seconds handles the occasional belt-tensioning or start-against-closed-valve scenario without tripping. The ambient temperature rating is 0 to +45 °C without derating. Above 45 °C you'll need to derate output current per the standard G120X curve — a factor to check if the drive is going into a non-air-conditioned electrical room in a hot climate.