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which is identical to HK02ZB027B
Which ignition modules can I use this with
Designed for utility and precision
we recommend inspecting the filter weekly
It serves as the direct replacement for the 3F05-3 and various Therm-O-Disc Style 310708 models
Robertshaw 620-403 Transformer which is identical to HK02ZB027BThe Robertshaw 620 403 is a heavy duty single phase open frame transformer designed for reliable power stepping in HVACR control circuits. Engineering for versatility, this 40VA Class 2 transformer converts a 120V AC primary input to a 24V AC secondary output at 50 60 Hz. Built to meet stringent UL 1585 and NEMA standards, it serves as a critical component for powering 24V thermostats, gas valves, and ignition systems. The 620 403 features universal