Multifunctional compact power supply including function generator and three-phase source, suitable for any basic or advanced experiments in the fields of electrical engineering, electronics and digital technology. The power supply has protective isolation and provides safety extra-low voltages in compliance with EN 61010. All outputs have self-resetting circuit breakers to cut off the power safely in the event of a current overload. The equipment is maintenance-free and especially suited for use by beginners. Modern switched-mode power supply technology allows for low power consumption and reduces power.