Robertshaw 780-787 Ignition Module 30067439-890 5-inch immersion depth for universal

5-inch immersion depth for universal compatibility across multiple electric water heater brands

Optimized Performance: Specialized 40-amp inductive rating ensures stability during high-surge motor startups

Don't waste time with universal fixes

making it suitable for high-output commercial boiler systems

Robertshaw 780-787 Ignition Module 30067439-890 5-inch immersion depth for universalThe Robertshaw 780 787 Ignition Module is a professional grade Hot Surface Ignition (HSI) Control engineered for high reliability performance in gas fired heating systems. This specific unit is a direct replacement for the HS780 34NR 306A, maintaining exact electrical and mechanical specifications for seamless field installation. Operating on a 120V AC supply voltage with a 24V AC control input, this module features a 34 second ignitor warm up period