Robertshaw 41-401 Hot Surface Ignitor As a staple in the

As a staple in the Apollo 70 series

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

75" WC for this application

This OEM York replacement part features an automatic reset mechanism designed to protect the heat exchanger and internal components from high-limit conditions

Common Questions What causes the HH12ZB250 limit switch to trip frequently

Robertshaw 41-401 Hot Surface Ignitor As a staple in theFor 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