The ceramic insulator includes a standard rib on the right edge

Using a genuine Trane OEM part like the RLY2852 ensures the coil impedance matches the system's transformer output

matching the high-voltage requirements of professional-grade Lennox units

always match the MFD rating on the nameplate when installing

Key Benefits Enhanced Flow Dynamics: The 2" x 2-1/2" expanded outlet design allows for high-velocity steam discharge

Copeland 918-0052-03 Crankcase Heater 321042-401 The ceramic insulator includes aThe Copeland 918 0052 03 Crankcase Heater is a critical 480V compressor heater designed to prevent refrigerant migration and oil dilution during system shutdown. Engineered specifically for Copeland scroll compressors and semi hermetic units, this crankcase heater element ensures that the lubricant remains at a temperature higher than the coldest part of the system, mitigating the risk of slugging on startup. With a 40 watt output, it provides