SOLCON RVS-AX44480-U-S STARTER UNMP Soft Starter

The SOLCON RVS-AX44480-U-S is an analog soft starter for three-phase induction motors, delivering controlled ramp‑up and ramp‑down without requiring a control voltage. It handles 8–170 A at a 220–600 V mains range (50/60 Hz) and uses six thyristors for full three‑phase control, with built‑in current limiting and motor protection; a built‑in bypass is included on higher‑rated variants (31 A and above) to improve efficiency during full‑voltage operation. Start/Stop is achieved via a voltage‑free control input, making the unit easy to integrate with existing control circuits, and it is marketed as a cost‑effective replacement for Star‑Delta and autotransformer starters in small‑to‑medium motors, with typical applications including conveyors, pumps, fans, and machine tools where smooth acceleration and reduced inrush are important, complemented by overload and phase‑loss monitoring and internal thermal protection for the device.