Duty-cycle margin for pump and fan loads
The 6SL3220-3YC30-0UB0 is rated 18.5 kW with a 110% overload capability for 60 seconds and 100% continuous for 240 seconds. That overload profile matches variable-torque loads like centrifugal pumps and fans where the peak demand is during start-up or a momentary process upset, not sustained. The input accepts 200-240 V 3-phase AC, +10/-20%, at 47-63 Hz. On a 208 V supply the drive still delivers full rated power; on a 200 V rail with -20% tolerance (160 V) the DC bus drops and output current must be derated — budget a 10-15% power reduction if the line is known weak.
Panel integration and fieldbus wiring
Frame size FSD with IP20 / UL open type — this is a panel-mount drive, not a standalone enclosure. The painting class 3C2 means the sheet metal resists moderate corrosive atmospheres (condensing humidity, salt mist) but the IP20 rating requires the drive to sit inside a cabinet that provides the environmental seal. Fieldbus is integrated: MODBUS RTU and BACnet MS/TP on the same RS-485 port. For building automation the BACnet stack eliminates the gateway; for industrial lines the MODBUS RTU maps the drive parameters directly into a PLC register map. No IO expansion module is included — the IOP handles local commissioning and the fieldbus handles remote I/O.
Compliance and export documentation
RoHS compliant since 2006-07-01. REACH Article 33 data is available per the current candidate list — the drive carries the documentation needed for EU substance compliance filings. Export Control Regulations: AL: N / ECCN: N. No license barrier for most commercial destinations; the drive ships under NLR (No License Required) classification.