10019812 - Diversitech AM4500T Replacement Motor Starter 575V 2.5-4A

Technical Overview: Diversitech 575V Motor Starter

The Diversitech 10019307 is a specialized motor starter assembly designed exclusively for the AM4500T Series of industrial fume extractors operating on a 575V power supply. In industrial air filtration systems, the motor starter serves as the critical gateway between the high-voltage power source and the mechanical fan unit. This component combines the functions of a contactor for switching the motor on and off with a thermal overload relay that protects the windings from excessive current draw.

Rated for an amperage range of 2.5 to 4.0 Amps, this starter is calibrated to match the specific load characteristics of the AM4500T's fan motor when running on 575V, 3-phase power—a common voltage standard in Canadian and heavy industrial facilities. The adjustability within the 2.5A to 4A range allows maintenance personnel to fine-tune the trip point based on the precise operating conditions and motor nameplate data, ensuring optimal protection without nuisance tripping.

Failure of a motor starter can lead to two primary scenarios: the machine failing to start entirely, or worse, the motor running without protection against over-current events, leading to catastrophic motor failure. Replacing a faulty starter with this genuine Diversitech OEM part ensures that the control circuit logic, voltage ratings, and physical mounting points align perfectly with the original equipment specifications. This component is essential for maintaining the operational integrity of your air quality control systems and ensuring compliance with workplace safety standards regarding fume extraction.

Installation of this component involves handling 575V circuitry and should be performed by qualified personnel. The starter is engineered to withstand the rigorous duty cycles typical of welding and fabrication environments, where fume extractors are often cycled on and off frequently or run continuously for long shifts.