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Robertshaw 41-401 hot surface igniter, flat silicon carbide tip, plug-in connector

Robertshaw

Robertshaw 41-401 Hot Surface Igniter hvac control

SKU CH-1NSW-4KGB9

Hot surface igniter with silicon carbide element and plug-in connection for 120V AC systems

  • Universal replacement fits LP and NG systems
  • Silicon carbide element resists high-heat wear
  • 120 V AC plug-in connection simplifies install
  • 5 1/2 in leads reach common mounting points
  • 392 °F wire insulation handles extreme temperatures

Universal Replacement Igniter

The Robertshaw 41-401 is a new hot surface igniter designed as a universal replacement for gas-fired heating systems. It suits HVAC technicians and maintenance teams who need a direct plug-in component for 120V AC equipment. The silicon carbide heating element delivers reliable ignition across both LP and natural gas applications.

120V AC Plug-In Connection

The single specification that decides fitment is the 120V AC input voltage combined with a plug-in electrical connection. Installers must verify that the appliance operates at this exact voltage and uses a compatible connector. Systems requiring a different voltage or a hard-wired lead will not accept this part.

Silicon Carbide Element Headroom

The silicon carbide probe withstands a maximum lead wire insulation temperature of 392 degrees F, giving it headroom for normal furnace cycling. It comfortably handles standard ignition sequences in residential and light commercial units. Extended exposure beyond the rated temperature or continuous duty cycles outside typical start-up profiles will exceed its design limits.

Highlights

  • Universal replacement fits LP and NG systems
  • Silicon carbide element resists high-heat wear
  • 120 V AC plug-in connection simplifies install
  • 5 1/2 in leads reach common mounting points
  • 392 °F wire insulation handles extreme temperatures

Specifications

BrandRobertshaw

Questions about this item

What does the 120 V AC rating mean when the igniter is installed in my furnace?

It means the igniter is designed for standard 120 V AC household power and will glow at the correct temperature when wired to the furnace control board.

How does the plug-in electrical connection limit installation options?

The plug-in connection requires a matching socket on the furnace harness; if the existing wiring uses a different connector, an adapter or rewiring will be needed.

What clearance is required for the 4 1/2 in probe length when mounting the igniter?

The probe extends 4 1/2 inches into the burner assembly, so the mounting bracket must position the tip within the flame path without touching surrounding metal.

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