While it can replace relays with lower ratings

Precision Control: Critical for achieving accurate outdoor air intake and exhaust air management in pneumatic or electric control setups

this limit control switch is typically utilized in the 24V safety string but is rated for standard pilot duty applications found in York gas furnaces and package units

Versatile SPDT Logic: Enables control of multiple system components through a single 24V trigger

Johnson Controls BKT287-3R Mounting While it can replace relaysThe Johnson Controls BKT287 3R is a professional grade DIN rail mounting hardware solution designed for rapid and secure installation of HVAC control components and automation systems. Fabricated from high grade steel, this 24 inch (approx. 610mm) rail provides the structural rigidity required to support dense configurations of relays, terminal blocks, and electronic controllers. Measuring 35mm x 7. 5mm, it conforms to the standard TS35 profile,