No, it is not safe to plug a vacuum cleaner directly into an electrical outlet without any electronic devices or circuitry in between. Vacuum cleaners, like most electrical appliances, are designed to be plugged into standard household outlets, which provide a controlled voltage and current flow.
Plugging a vacuum cleaner directly into an outlet bypasses any protective measures that may be provided by other devices, such as fuses or circuit breakers. This can potentially lead to electrical overloads, short circuits, or other electrical hazards.
Additionally, vacuum cleaners typically have their own internal circuitry, such as switches, motors, and possibly electronic control boards. These components are designed to handle and regulate the electrical current supplied by the outlet. Without this internal circuitry, the vacuum cleaner may not function properly or could potentially be damaged.
To ensure safety and proper operation, it is always recommended to use electrical appliances as intended and plug them into outlets designed for household use. If you encounter any issues with your vacuum cleaner or electrical outlets, it's best to consult a qualified electrician or the manufacturer for assistance.