Air Makeup Unit Technical Training Manual

Section 3

Contactor When a signal from the toggle switch, or PLC is sent to the coil of the contactor, it creates a magnetic field that causes the contactor to “pull in” which then sends 3 phase power to the motor, and 120vac signal out to various devices.

Signal from toggle switch or PLC

The signal can also be wired to a standard 120 volt outlet to be used by an airless spray gun

3 phase motor connection.

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