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The Lennox 49K03 is the base part number often referenced in service manuals
offering a direct-fit solution that eliminates compatibility guesswork during technical pull-and-replace operations in residential air conditioning units
Streamlined Troubleshooting: The high-temperature display and 25-fault memory provide instant service data for faster repairs
Optimized Combustion: Precision orifices prevent soot buildup and ensure clean flame characteristics at high LP pressures
ABB CAL5-11 Auxiliary Contact THPU32HP7Y The Lennox 49K03 is theThe ABB CAL5 11 is a high performance side mounted auxiliary contact block designed for seamless integration with ABB A Series contactors, specifically models A9 through A75. Featuring a 1 NO (Normally Open) and 1 NC (Normally Closed) configuration, this essential component provides reliable feedback signals and interlocking capabilities for complex motor control circuits. Engineered for industrial automation environments, the CAL5 11 technical