Rated current and thermal derating — what the 1864 A means for your motor
The 3RW4465-2BC35: The 1864 A at 40 °C is the full-load continuous rating in the standard SIRIUS 3RW44 frame.
Integrated bypass and inside-delta wiring — two features that save panel space
The integrated bypass contact system means you don't need an external contactor to short the thyristors after the motor reaches full speed — the starter handles it internally, cutting heat dissipation in the cabinet and simplifying the power circuit. Inside-delta circuit capability lets you wire the starter between the motor windings in a six-lead motor, reducing the current the soft starter sees by about 42% compared to standard in-line wiring. That means a smaller frame size for the same motor FLA — worth checking if your motor has accessible winding ends.
Mounting and connections — screw fixing, busbar, and spring-clamp terminals
Mounting is by screw fixing with the unit oriented vertically; it can be rotated ±90° or tilted ±22.5° front/back — so you can fit it into a tight panel corner as long as the ventilation clearances (100 mm up, 75 mm down, 5 mm sides) are respected. Main current circuit connection is busbar, sized for 2/0 to 500 kcmil or 70–240 mm² stranded.