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Jackson Systems

Copeland Comfort Control 3L11-120 Temperature Limit Switch

The Copeland Comfort Control 3L11-120 is a fixed-temperature bimetal disc limit switch designed for HVAC and mechanical control applications requiring reliable thermal protection or fan cycling control. This control operates within a fixed temperature range of 115 to 125°F with a 30°F differential and features an SPST switch that opens on temperature rise. Built with […]

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Copeland Comfort Control 3F11-120 Fan Switch – 113–127°F SPST

The Copeland Comfort Control 3F11-120 is a fixed-temperature bimetal disc fan control switch designed for HVAC systems requiring reliable temperature-based fan operation. This control closes on temperature rise within a range of 113 to 127°F and features a 30°F differential for consistent cycling. Built with a 1/2″ bimetal disc, it provides accurate thermal response and […]

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