Description
The Schneider Electric (Square D) B3.30 Thermal Unit Starter Type B is a thermal overload protection part designed to safeguard electric motors in HVAC systems. As part of a motor starter assembly, this thermal unit detects excess heat caused by motor overloads. When overheating occurs, the unit trips the circuit to prevent damage to the motor and connected equipment. Commonly used in HVAC systems such as air handlers, compressors, and pumps, it ensures operational safety and equipment longevity. Key benefits include enhanced motor protection, reduced risk of costly downtime, and improved system efficiency.
