29M8501 is simply the lengthened SKU used in certain supply chain databases

preventing permanent lockouts during minor fluctuations

Simplified Calibration: Facilitates easy mechanical adjustments to the power stroke using standard 7/16-inch or adjustable wrenches

they cannot be resold for safety reasons

Lennox 10B17 Potential Relay Els PW 17895 29M8501 is simply the lengthenedPOTENTIAL RELAY 10B17 is identical to 10B1701, 10B1702 Lennox 10B17 Potential Relay Model 10B1701, 195 180V Pickup, 60 130V Dropout, 35A, OEM HVAC Part Ensure dependable performance and compatibility in HVAC systems with the Lennox 10B17 Potential Relay (Part #10B1701). This genuine OEM replacement part is engineered for high reliability motor start applications, making it essential for Lennox HVAC systems requiring precise relay control. Designed