This heavy-duty furnace interlock switch is a critical safety component designed to instantly cut power to the blower motor and control board when the furnace access panel is removed

the York S1-025-26366-006 ensures the blower engages only when the plenum reaches the appropriate temperature and interrupts the burner circuit if safety thresholds are exceeded

Durable Forged Brass Construction: Rated for a maximum pressure of 300 psig (working) and 400 psig (static)

Don't waste time on the job site trying to modify standard PVC or flex when this furnace air pipe is designed to meet exact factory airflow specifications and port connections for a drop-in install

This part is a direct OEM replacement for various York commercial platforms

Belimo ZG-AF108 Adaptor Kit Els PW 17895 This heavy-duty furnace interlock switchFor the seasoned contractor, the Belimo ZG AF108 Adaptor Kit is your go to solution for challenging damper actuator installations. This robust AF NF crankarm adaptor kit is engineered to facilitate actuator mounting when direct shaft attachment isn't feasible, offering critical flexibility for both inside and outside duct applications. The included ZG 108 universal mounting bracket features pre drilled hole patterns, allowing for precise horizontal or