Schneider Electric (Square D) B15.5 Overload Relay Thermal Unit

The Schneider Electric (Square D) B15.5 Thermal Unit is a necessary component used in circuit breakers for HVAC systems. This thermal unit provides thermal protection by detecting excessive heat and preventing electrical damage. This detects temperature rises inside the system the circuit breaker. The thermal unit protects HVAC equipment including compressors, fans and pumps from system overloads while simultaneously reducing the risk of equipment failure and fire. The thermal unit provides reliable HVAC operation while ensuring efficiency and it extends system life while improving safety measures.