The Siemens 6SL3525-0PE21-5AA0 is a SINAMICS G120D PM250D Power Module — a spare part for the distributed drive family, built to live on the machine rather than in a central cabinet. It carries an integrated Class A EMC filter and supports energy recovery back to the line, which matters when you're cycling loads like conveyors or pumps that regenerate on deceleration. Rated for 380-480 V 3 AC input, ±10%, 47-63 Hz, and delivers 1.5 kW under high overload: 200% for 3 seconds, 150% for 60 seconds, 100% for 300 seconds. That overload curve is the real-world spec — it tells you the module handles short peak torque demands without tripping, typical for starting a loaded conveyor or breaking a jam. The enclosure is IP65, so the module is sealed against hose-down and dust ingress — suitable for food, beverage, or washdown zones where you can't put a cabinet. It measures 210 x 450 x 110 mm (HxWxD), FSA frame size, and requires a separate Control Unit (not included) to complete the drive.
What the IP65 and overload ratings mean on the line
That's the difference between a drive that lives in a panel and one that mounts directly on a machine frame in a wet area. No additional cabinet needed. The high overload rating of 200% for 3 seconds and 150% for 60 seconds is what you size against for real motor loads, not the continuous 1.5 kW. A pump starting against a closed head or a conveyor with a jammed product will draw that peak — if the drive can't deliver it, you nuisance-trip. This module can. Energy recovery means regenerative energy from a decelerating motor goes back to the supply rather than being dumped as heat in a braking resistor. On a line with frequent starts and stops, that saves power and keeps the enclosure cooler.