Panel fit and mounting constraints
The 3RW5143-1XC14-0S measures 417 mm high, 210 mm wide, and 203 mm deep, with screw fixing as the fastening method. The mounting position allows vertical surface mounting with ±90° rotation and ±22.5° tilt front-to-back, so panel layout can adapt to existing busbar or cable entry positions. Clearance requirements: 100 mm upwards, 75 mm downwards, 10 mm forwards, 5 mm at the sides, and 0 mm backwards. The zero backward clearance means the unit can sit flush against the back panel, simplifying depth planning in shallow enclosures.
Motor protection and trip class selection
Trip class is configurable: CLASS 10A (default), 10E, or 20E per IEC 60947-4-2. Minimum load is 15 % of the smallest settable Ie, so the soft starter can handle lightly loaded motors without nuisance tripping.
Fieldbus and control integration
Built-in PROFIBUS, Modbus RTU, and PROFINET interfaces allow direct connection to Siemens S7 or third-party controllers without an external gateway. The analog output is configurable as 4-20 mA (default) or 0-10 V, parameterizable via the High Feature HMI. Control circuit wiring uses screw-type terminals. Remote reset is available by cycling the control supply voltage. The unit supports firmware updates, an error logbook, and an auto-reset function for unattended restart after a fault clears.
Environmental and derating considerations
Shock resistance is 15 g / 11 ms (12 g / 11 ms with potential contact lifting). Vibration resistance: 15 mm to 6 Hz, 2 g to 500 Hz.