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This switch is calibrated to trigger at -0
Trion 255649-102
This non-positional relay features a universal break-off bracket
This primary air restrictor is precision-stamped to regulate the volume of air entering the venter motor assembly
Cleveland Controls DFS-221-227 Switch This switch is calibrated toThe Cleveland Controls DFS 221 227 is a precision engineered airflow proving switch specifically designed for duct heaters, ovens, and energy management systems. This fixed set point air pressure switch is factory calibrated to operate on a pressure rise at 0. 05" 0. 02" w. c., making it a reliable solution for applications where a non adjustable, tamper proof sensing component is required. Built with a durable plated housing and a high performance