Contactors and magnetic motor starters

What is a disconnect?

A device that is used to kill/remove electrical circuit from their supply source

What is a manual starter?

A contactor with an overload protection device.

Ambient temperature

Temperature of the air surrounding a motor

Used to monitor the heat generated by excessive current and heat created by ambient temperature

Heater coil

How are Ac manual starters selected?

Phasing, number of poles, voltage, starter size and enclosure type