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Function: Detects burner flame to allow continued gas valve energization and prevent hazardous unburned gas accumulation
it handles the specific diagnostic SureLight signaling required for high-efficiency Lennox HVAC units
Key Benefits for Contractors: Broad Compatibility: Serves as a drop-in replacement for Century
making it a reliable choice for natural gas shut-off and propane delivery systems
Siemens Industrial Controls 3RH2911-1MA11 Aux 323269-701 Function: Detects burner flame toIntegrate the Siemens 3RH2911 1MA11 auxiliary switch block into your control panel for dependable status feedback and interlocking functions. As a veteran grade front mounted auxiliary contact, this unit is engineered for the SIRIUS 3RT2 contactors and 3RH2 contactor relays, covering frame sizes S00 through S3. It features a 1NO 1NC contact configuration with a bottom entry wiring design, which is essential for maintaining clean wire management in
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