SUPCO Q113 Heat Sequencer – SPST Single-Stage Heating Sequencer for Electric Furnace and HVAC Systems

The SUPCO Q113 Heat Sequencer is a high-quality SPST (Single Pole, Single Throw) control component used in electric furnaces and HVAC systems to safely sequence heating elements or blower motors. It provides delayed switching to ensure that heating components are powered on and off in a controlled manner, avoiding current surges and improving the overall reliability and efficiency of the system.

This sequencer is equipped with a single switch and operates on a 24V coil, with a delay-on time ranging from 1 to 60 seconds and a delay-off time of 1 to 60 seconds, allowing a smooth transition during system startup and shutdown. The Q113 is built using heat-resistant materials for durability in high-temperature environments, making it suitable for both residential and light commercial units.

Compact and easy to install, the SUPCO Q113 is a direct replacement for many OEM models and meets industry standards for performance and safety. Whether you’re repairing or maintaining an HVAC system, this sequencer ensures dependable control of heating stages, preventing overloads and system strain.