Robertshaw 41-401 Hot Surface Ignitor if your existing switch is

if your existing switch is failing to reset or tripping prematurely

75" WC for this application

As a staple in the Apollo 70 series

eliminating the calibration drift common with generic universal switches

this snap disc limit is rated for use across common heating control voltages

Robertshaw 41-401 Hot Surface Ignitor if your existing switch isFor service calls requiring a robust ignition source, the Robertshaw 41 401 Hot Surface Ignitor is the industry standard silicon carbide solution. Engineered for 120V AC operation, this Carbide Series ignitor features high purity recrystallized silicon carbide construction, often referred to as Crystar, which provides the thermal stability needed for high cycle heating applications. This 271A factory spec component is a direct cross reference for