this unit requires a 460V 3-phase input to provide the necessary output for industrial motor control applications

The single-try ignition sequence simplifies local code compliance in specific commercial and residential configurations

eliminating the need for auxiliary relays in many setups

As a veteran-grade furnace ignitor

the Intermatic ET2715C is the direct performance successor

Lochinvar & A.O. Smith 100109846 Limit Switch 322838-753 this unit requires a 460VThe Lochinvar & A. O. Smith 100109846 is a 90 150F M R limit switch engineered for high precision thermal protection in residential and commercial water heating systems. As a critical safety component, this manual reset thermostat monitors air or water temperature to prevent overheating conditions that can lead to equipment failure or hazardous operation. It is specifically designed for cross brand compatibility, serving as a direct replacement part