What the 0.55 kW low-overload rating means for your drive cabinet
The Siemens 6SL3210-1NE11-7UL0 is a SINAMICS G120 Power Module PM230 — the power stage of a modular drive system. Rated for 0.55 kW under low overload (LO) at 380-480 V 3 AC, it delivers 150% rated current for 3 seconds, 110% for 57 seconds, and 100% continuously over a 240-second cycle. That overload profile suits constant-torque loads like small conveyors or pumps where short-duration peak demand is predictable, not a crusher or extruder that pulls sustained overload. The 0.55 kW LO rating is the figure that governs real-world motor sizing; the module will not sustain higher continuous output.
Panel integration — FSA footprint and Control Unit dependency
The module ships as a bare power stage — no Control Unit, no operating unit. It requires a CU240B/E-2 or CU230P-2 with firmware V4.4 or higher to function. The FSA frame size (196 x 73 x 165 mm, HxWxD) fits a standard 200 mm deep enclosure; the 73 mm width leaves room alongside a line reactor or braking resistor on the DIN rail. IP20 means it is intended for a clean, dry cabinet — no washdown or outdoor mounting without a higher-rated enclosure.
Compliance and documentation
The SINAMICS G120 series carries CE, UL, and cUL approvals for the North American and European markets. RoHS and REACH declarations are part of the standard Siemens documentation package. No safety functions are supported on the PM230 variant — that is a note worth flagging if your safety circuit expects a safe torque-off (STO) or safe stop 1; you would need the PM240-2 or PM250 for those.