York Parts S1-3500-3151/A Limit SwitchYork Parts S1 3500 3151 A is a reliable limit switch designed for York equipment. It provides precise actuation and dependable electrical switching for OEM replacement needs. Built to fit York systems, this limit switch delivers consistent performance in harsh industrial control environments. Engineered for dependable performance, this limit switch maintains safety thresholds and consistent actuation under demanding loads. Whether you're updating a

4 A at 240 VAC (locked rotor)

Brass construction for durability and corrosion resistance

Rugged durability to withstand demanding environments and long service life

Its compact 4-3/4 inch end-to-end distance

The Aquastat Sensor Well Assembly 121371L delivers precise immersion sensing for boiler control systems

and 120-277V AC ranges

This diaphragm

Part number Q3451C1218 ensures precise ordering

reducing compatibility concerns and downtime

Fits RDCA and RDDA gas heat units

Pressure rating: 1/2 psi

or combination burners with an on-off primary control