The 6SL3211-0KB13-7UA1: This is a spare-part variant: it ships without a BOP (Basic Operator Panel) and without an RS-485 interface. The drive uses a flat heat sink and is designed exclusively for cooling plate installation — it needs a metal panel or backplate to sink heat, not free-air convection. The IP20 enclosure keeps it inside a cabinet.
Ratings That Matter for the Line
The 0.37 kW rating at 200-240 V single-phase covers small pumps, fans, and conveyors. The constant-torque (CT) and variable-torque (VT) ratings are the same here — 0.37 kW — so there is no headroom to oversize for a heavier load. The CT overload capability is 150% for 60 seconds, which handles short-duration starting torque on a centrifugal load or a light conveyor. Input frequency range is 47-63 Hz, so it works on 50 Hz and 60 Hz mains without derating. The ambient temperature range of -10 to +50 °C is typical for a cabinet-mounted drive; keep it above freezing and below the high end for reliable electrolytic capacitor life.
The drive measures 150 x 90 x 101 mm (HxWxD) and mounts via the flat heat sink to a cooling plate — this is not a DIN-rail clip-on. The cooling plate must be clean, flat metal for thermal transfer; thermal paste or a pad is typical. The unfiltered variant means you supply the line-side EMC filter externally if the application requires conducted emissions compliance. Analog input is standard; no onboard fieldbus or RS-485 port, so control is via the analog setpoint and digital inputs. For a simple fixed-speed pump or fan replacement, this keeps the wiring straightforward.
The mature lifecycle stage means this drive is still available through supply channels but is not the current series — SINAMICS G120 or G120C are the active-generation alternatives for new designs.