Rheem Furnace Parts 47-21900-05 Temperature Control Limit Switch

Temperature Control Limit Switch, a core part of Rheem furnace parts, protects your gas furnace from overheating. The 47-21900-05 features a Large Flanged Airstream design with Manual Reset, delivering reliable protection after a trip. Operating at a temperature range of 200°F (Open), it safely interrupts power to prevent damage and reduce risk. With a 230V AC, 25A contact rating and SPST, NC configuration, this switch offers robust performance and compatibility with standard furnace wiring. The 1/4 inch Quick Connect terminals simplify installation, while the Disc Face Type Exposed provides clear visibility during service. Its +/-8°F open tolerance and 3/8 inch mounting insertion depth ensure precise placement in tight furnace layouts. Built for durability in harsh furnace environments, it helps maintain efficient operation and longer equipment life. This Temperature Control Limit Switch is a smart upgrade for any compatible Rheem gas furnace, delivering safety, reliability, and easy maintenance.

• Type: Large Flanged Airstream, Manual Reset
• Temperature range: 200°F (Open)
• Contact rating: 230 VAC, 25 A
• Contact configuration: SPST, NC
• Connection: 1/4" Quick Connect
• Application: Gas furnace
• Disc face: Exposed
• Temperature tolerance: +/- 8°F (Open)
• Mounting depth: 3/8 inch