Siemens 6SE6440-2UC22-2BA1 Soft Starter Module

Siemens 6SE6440-2UC22-2BA1 is a Micromaster 440 soft starter module designed to provide smooth motor start-up and ramping for small to mid-size drives from a 200–240V AC supply, supporting 1- or 3-phase input and 47–63 Hz operation for precise speed control of compatible loads up to 2.2 kW. It includes a robust I/O set for automation: six digital inputs, three relay outputs, two analog inputs, two analog outputs, and one PTC/KTY interface to monitor motor temperature, enabling integrated control and feedback within a panel. Measuring 202 × 149 × 172 mm and weighing about 3.3 kg, the module is rated IP20 for indoor panel mounting and is specified for ambient temperatures from -10 to +50°C, with no external filter required (unfiltered operation) and overload capability of 150% for 60 seconds and 200% for 3 seconds. These characteristics make it suitable for soft-starting pumps, fans, and small conveyors where reduced inrush, controlled acceleration, and built-in sensor interfaces enhance system reliability.