Rheem-Ruud 47-21900-01K Limit Switch

230F CO M/R SPST LIMIT SWITCH

47-21900-01K is the cross of 47-21900-01

Rheem-Ruud 47-21900-01K Limit Switch – 230°F Manual Reset, SPST | OEM Replacement

The Rheem-Ruud 47-21900-01K Limit Switch is a high-quality OEM replacement component designed to ensure reliable temperature control and safety in heating systems. This manual reset limit switch is engineered to protect HVAC and water heating equipment by accurately monitoring temperatures and interrupting system operation when necessary.

With a 230°F cut-off temperature and SPST (Single Pole Single Throw) design, the 47-21900-01K limit switch is ideal for use in flanged airstream applications, providing precise operation and long-lasting performance. Its robust construction ensures dependable service in commercial and residential heating systems.

Key Features & Benefits

• OEM Rheem-Ruud replacement for reliable operation

• Manual reset design for safety and control

• 230°F temperature rating for accurate system protection

• SPST (Single Pole Single Throw) electrical configuration

• Flanged airstream compatibility for easy integration

• Durable construction for long service life

Product Specifications

• Manufacturer: Rheem-Ruud

• Part Number: 47-21900-01K

• Type: Limit Switch Kit – Manual Reset

• Temperature Rating: 230°F

• Electrical Form: SPST

• Application: Flanged airstream heating systems

• OEM Replacement: Yes

Applications

• Residential and commercial furnaces

• Water heaters

• HVAC systems requiring manual reset limit protection

• Safety control for heating equipment

The Rheem-Ruud 47-21900-01K Limit Switch is the trusted choice for maintaining safety, efficiency, and reliable operation in your heating system. Ideal for service technicians and homeowners seeking a durable OEM replacement part.