Robertshaw 41-404 Hot Surface Ignitor a compatible dual-window cover from

a compatible dual-window cover from the T-4000 series must be used to ensure proper clearance and visibility

it provides a reliable 150°F opening temperature and a 120°F closing temperature

preventing heat exchanger damage and ensuring safe equipment shutdown during airflow failures or high-static conditions

it can be used in any application requiring a 15 MFD / 370Vac oval run capacitor

provided the housing dimensions match

Robertshaw 41-404 Hot Surface Ignitor a compatible dual-window cover fromThe Robertshaw 41 404 Hot Surface Ignitor is a service ready, high purity recrystallized silicon carbide furnace ignitor engineered for rapid thermal response in residential and light commercial heating applications. This Norton 271M replacement features a Style C ceramic block and is factory rated to reach HSL ignition temperatures within 17 seconds at 120V AC. Designed for maximum conductivity, the unit includes 18 gauge nickel chrome lead wires