The 3RW5235-2TC14 is a SIRIUS soft starter rated for a minimum load current of 68 A and a supply voltage range of 200 to 480 V. The minimum load figure of 15% relative to the smallest settable Ie means it can handle lightly loaded motors without nuisance tripping — important for pumps or fans that start unloaded. The trip class defaults to CLASS 10A per IEC 60947-4-2, with selectable 10E and 20E curves, so you match the thermal protection to the motor's starting profile: 10A for standard starts, 10E for extended acceleration, 20E for high-inertia loads like centrifuges or crushers. The unit supports PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET, including PROFIenergy when paired with the PROFINET communication module. That breadth of fieldbus options means it integrates into existing control architectures without a gateway — whether the line runs Siemens S7, Rockwell ControlLogix, or a third-party PLC. The soft torque and pump ramp down features reduce mechanical stress on the driven load and prevent water hammer in pumping applications.
Mounting is by screw fixing on a vertical surface, rotatable ±90° and tiltable ±22.5° front-to-back. Clearance requirements: 100 mm above, 75 mm below, 10 mm forward, 5 mm at the sides, 0 mm backward — so panel layout must allocate vertical breathing room for convection cooling. Shock resistance is 15 g / 11 ms, dropping to 12 g / 11 ms if potential contact lifting is a concern. Dimensions: 306 mm high, 185 mm wide, 203 mm deep. Approvals include CE, UL, and CSA, covering installations in North American and European jurisdictions.