TS300B - Thermal Switch UL Square JB 4" Square Junction Box Backed by Williams (a Snap-on

Backed by Williams (a Snap-on brand) full lifetime warranty

Pressure Setting: 870 PSIG (approx

Supplied with a dedicated arbor — pre-assembled and ready to use

and other non-corrosive industrial fluids

TS300B - Thermal Switch UL Square JB 4" Square Junction Box Backed by Williams (a Snap-onTS300B Crown Engineering Thermal Switch UL for 4" Square Junction Box The TS300B Thermal Switch by Crown Engineering is a UL listed safety device designed for installation in 4 inch square junction boxes. It provides automatic thermal protection for fuel burner systems by disconnecting power when ambient temperatures exceed a critical threshold. Key Features: Thermal Activation: Automatically shuts off power at 165F, preventing overheating and fire