133 A at 40 °C — the current that drives the panel placement
The 3RW4426-1BC46: That 40 °C figure is the baseline for sizing the soft starter against the motor full-load current; if the panel ambient runs hotter, the usable current drops accordingly. The soft starter only conducts during start/stop; the bypass carries the full-load current in steady state. Inside-delta circuit capability means the soft starter can be wired in the delta legs of a delta-connected motor, reducing the current rating required from the soft starter to 58% of the motor FLA. Confirm the motor winding configuration before specifying this wiring method.
Mounting and terminal specs for the panel build
Dimensions are 270 mm deep, 170 mm wide, 192 mm high. The mounting position allows vertical surface with ±90° rotation and ±22.5° tilt front-to-back, giving flexibility in tight enclosures. Screw fixing is the fastening method. Clearance requirements: 100 mm upwards, 75 mm downwards, 5 mm at the sides. These are the minimum air gaps for cooling airflow and arc flash containment — respect them in the gland plate layout. Maximum wire length to the motor is 500 m.
Active production — sourcing for the BOM line
No stock-holding claim is made; each order is validated per the build schedule.
Protection and control features for the motor circuit
Motor overload protection and intrinsic device protection are both integrated. Adjustable current limitation lets the starting current be set between 0 and the rated value, protecting both the motor and the driven load during acceleration. Minimum load is 8% of the soft starter rating — below this the motor current may not be reliably detected. The display provides fault signal readout for diagnostics. External reset is supported for remote restart after a trip. Degree of pollution 3 per IEC 60947-4-2 means the unit is rated for conductive pollution environments typical in industrial panels without climate control.