• Single Phase
  • Thermal Overload Protector (TOP)
  • Switches

Krishna 7AMI single phase Thermal Overload Protector (TOP) switches provides complete protection to electrical equipment against overheating due to over current fluctuating voltage, overload condition and mechanical malfunction. They air made to protect equipment and appliances from fire and damage. They also provide safety to user. They are Electro mechanical type, miniature design, curate, Reliable & Cost effective.

Key Features

  • Miniature in size
  • Individually temperature calibrated and tested
  • Positive Snap action disk for contact break and make
  • Auto reset type
  • Wide range of current and temperature settings for maximum design flexibility.
  • Temperature settings as per customer’s specifications.
  • Opening (cut off) temperature is constant within ± 5° C
  • Wide section of lead wire and insulating sleeves.
  • Cadmium free contacts


Krishna 7AMI (TOP) switches are used to provided safety to a wide range of domestic and industrial equipment.

Some typical applications are:

  • Single Phase Electric Motor
  • Wiper Motor
  • Water Pumps
  • Electrical Ballast for fluorescent Lights
  • Mixer Grinder
  • Dish Washers
  • Battery Packs
  • Vacuum Cleaner
  • Others as per customer design and application