Siemens 6SE6440-2UC15-5AA1 Variable Frequency Drive

Siemens MICROMASTER 440 6SE6440-2UC15-5AA1 is a compact variable-frequency drive designed to control small three‑phase motors from a 200–240 V AC supply. This "without filter" model provides 0.55 kW (about 0.74 hp) of continuous output with a 1‑phase input at 200–240 V and 47–63 Hz, delivering 3‑phase output to the motor for precise speed and torque control. Engineered for constant torque operation, it offers overload capacity of 150% for 60 seconds and 200% for 3 seconds, with a square‑law torque characteristic of 0.55 kW. The unit’s physical envelope is 173 × 73 × 149 mm (H × W × D) and it carries IP20 protection, suitable for interior panel mounting in temperatures from -10 to +50 °C. This drive is typically used in automation tasks such as conveyors, pumps, fans, and machine tools where reliable, compact motor control is required.