Manual switch/plug combination for 380–400 V three-phase systems with built-in motor protection and safety functions. Key benefits Prevents motor damage: thermal contact connection provides reliable thermal overload protection for three-phase motors. Safe after power failures: restart protection with low-voltage release ensures the device stays off after a power interruption and only restarts when the green start button is pressed. Rapid shutdown: built-in emergency stop switch lets you stop connected equipment immediately. Flexible operation: includes a phase inverter and is suitable for a wide range of three-phase 380–400 V, 16 A devices. Durable and weather-resistant: robust construction with protection class IP54 supports long service life and use in workshop or outdoor-adjacent environments. How it solves common problems Eliminates unexpected restarts after outages, reducing risk to operators and machinery. Protects motors from overheating and overload without additional external relays. Provides a single plug-in control solution that combines power, protection and emergency stop in one unit, simplifying wiring and improving safety. Main features and specifications Functions: thermal contact connection (thermal overload), restart protection, low-voltage release, emergency stop switch, phase inverter. Safety and durability: high safety protection factor and long service life; protection class IP54 (splash and dust resistant). Power: operating voltage 380 / 400 V; rated current 16 A (three-phase). Connection: switch/plug combination with approx. 65 cm connection cable; power plug: 3 pin + N + E. Compatibility and typical applications Designed for devices and machines with 380–400 V, 16 A power connections and three-phase motors. Common uses include trunk separators, firewood machines, rocker saws, band saws, pellet presses, hammer mills, compressors and similar workshop or small industrial equipment. Practical use scenarios Workshop band saw: prevents the saw from restarting automatically after a power cut; operator must press the green start button to resume, while the emergency stop provides fast intervention if needed. Firewood or pellet production line: central motor protection and restart control for crushers or grinders, reducing downtime from motor overloads and improving operator safety. Compressor in a shared shop: plug-and-play protection and emergency stop for a compressor serving multiple machines, with IP54 housing suitable for dusty or humid environments. Operation notes Connect to a compatible 380–400 V three-phase supply using the integrated plug (3 pin + N + E). Cable length: approx. 65 cm from the unit to the plug. After a power failure the unit remains off until the green start button is pressed; use the emergency stop switch for immediate shutdown when required. This switch/plug combination delivers integrated motor protection, restart control and emergency stopping in a compact, durable package for three-phase 16 A equipment.