Description
The Marley Engineered Products 4520-2031-000 Auto Limit Switch is a thermal protection control used to monitor, and regulate temperature levels in systems. Integrated into electric heating units, and air handling equipment, it interrupts the electrical circuit when temperatures rise above 220F and automatically reconnects near 180F after conditions return to the normal range. The switch operates through an internal temperature-sensitive system that reacts to heat buildup during operation. Positioned within heater control sections using compatible wiring connections, it assists controlled heating performance, supports equipment protection, and maintains consistent operation across commercial and food services heating applications.
