General power supply: install a disconnect switch with fuses or thermomagnetic circuit breaker with equivalent breaking characteristics close to the unit, in accordance with the requirements of standard NBR5410.
Consult an electrical engineer or technician accredited by CREA (Regional Council for Engineering and Architecture) to assess the condition of the installation's electrical system and select the appropriate power and protection devices.
Recommendation: It is advisable to use a padlock to lock the open switch or circuit breaker while maintaining the device.
