Schneider Electric (Square D) 9013FSG2J21M4 2-Pole Low Pressure Switch Cut-Off Open-High 30/50-PSI

The Schneider Electric (Square D) 9013FSG2J21M4 Pressure Switch with Low-Pressure Cut-Off is for the control of electrically driven air compressors in HVAC systems. It has a 2-pole design and a pressure range of 30-50 PSI and starts and stops the motor automatically based on system pressure. It gives power to prevent equipment damage when pressure falls below a preset level. It is commonly used in light commercial compressors, and improves system durability provides safe operation, and extends equipment life by preventing low pressure operation making it an essential part of HVAC equipment.