The Siemens 3RW2236-0DB15 is a SIRIUS solid-state soft starter rated 160 A at 40 °C and 140 A at 55 °C, meaning it handles motor starting current for a 90 kW / 400 V induction motor without the mechanical shock of a direct-on-line contactor. The 200-500 V operating voltage range covers standard 400 V three-phase industrial supplies across 50/60 Hz. The screw-fixing mounting and busbar connections for the main current circuit tell you it bolts into a switchboard or motor control center, not onto a DIN rail. Control supply is AC only, 100-415 V at 50 or 60 Hz, so verify your control transformer voltage before wiring. The auxiliary contact block provides 2 NO and 1 CO contacts for feedback to the PLC or status indication.
This is a current lifecycle item.
What it does not include
This soft starter has no integrated bypass contact system and no motor overload protection — it relies on the upstream motor circuit protector (e.g., a 3RV breaker) and an external overload relay or the drive's own electronic overload function. It also lacks thermistor motor protection evaluation.