Rheem-Ruud SP8311E Fuse Block Kit 320788-702 the HH18JA066 features a bimetal

the HH18JA066 features a bimetal disc for reliable snap-action switching

What are the signs that my SFCAP45D5440R needs replacement

Engineers and technicians frequently specify the RIBT243B relay for dry contact switching and motor control due to its high inductive load rating and LED status indicator which simplifies field troubleshooting

5 MFD / 370V run capacitor

This genuine HVAC OEM part is the direct performance 103094-01 cross-reference for the legacy Lennox 18L89

Rheem-Ruud SP8311E Fuse Block Kit 320788-702 the HH18JA066 features a bimetalThe Rheem Ruud SP8311E Fuse Block Kit is a heavy duty OEM replacement part designed for high demand electrical circuits in residential and commercial water heating systems. Engineered as a 3 pole fuse block, this component is rated for 30 Amps and 480V, providing critical overcurrent protection to prevent component failure from surges or short circuits. For contractors handling field service, this kit is the standard solution for restoring electrical