Barber Colman SP-10-0-0-5 Sequence Controller

Barber Colman SP-10-0-0-5 Sequence Controller is a legacy industrial control device that coordinates a predetermined sequence of external AC loads by energizing a series of relays, a function commonly used in Barber Colman control architectures to manage multi-step operations. The unit is designed to operate on 125, 250, or 480 V AC power, aligning with the line-voltage configurations frequently found in older Barber Colman installations and HVAC equipment. As a sequence controller, it drives the connected relays or loads to execute a fixed order of actions, enabling staged processes such as heating or cooling sequences, ventilation management, or synchronized operation of fans, pumps, and other devices within a single control panel. The SP-10-0-0-5 carries Barber Colman’s part-number designation and sits among the brand’s legacy sequencing and control solutions, offering a practical solution for maintaining or integrating legacy automation in facilities that rely on this lineage of components. Because it is specified for 125/250/480 V AC operation, it can be aligned with existing Barber Colman components and older control panels to support straightforward, fixed-sequence automation within legacy systems.