Therm-O-Disc 15S1 309561 24 VAC Fan Control Sequencer Relay Style:Used this switch is perfect for

this switch is perfect for use in industrial settings where performance and safety are top priorities

HK42FZ0133504

Guts-only configuration—interior components without exterior housing

gasket and screws are included and must be used with this box

Therm-O-Disc 15S1 309561 24 VAC Fan Control Sequencer Relay Style:Used this switch is perfect forThe Therm O Disc 15S1 309561 is a 24 VAC fan control sequencer relay designed for HVAC systems. This relay manages fan operation timing and sequencing in heating and cooling applications, ensuring proper system coordination and efficiency. Built for reliable performance in commercial and residential installations, it provides precise control over fan motor activation. Ideal for technicians and contractors needing dependable climate control components.