47-25349-05 Rheem 3-inch limit switch L200-20F  

Rheem Protech 3" limit switch. L200-20F meaning the switch opens at 200 degrees F and automatically closes at 180 degrees F. Mounting board measures 1-5/8" x 1-7/16". Also known as part # 472534905 & 44795. Size is 36TVH01B3.

OEM Automatic Reset Limit | Opens at 200°F, Closes at 180°F

The 47‑25349‑05 is a genuine OEM Rheem / Ruud / WeatherKing 3‑inch limit switch designed to protect the furnace from overheating. Rated L200‑20F, this switch opens at 200°F and automatically resets at 180°F, ensuring safe operation and preventing heat exchanger damage.

Controls, Temperature, 200 degrees F Fixed Open Temperature, 180 degrees F Fixed Close Temperature, SPST Normally Closed Switch, Auto Reset, 3" Insertion Length, Board Mounted General Purpose Limit Switch (Orange/Orange Color Coded)

Key Features

• OEM Rheem / Ruud / WeatherKing limit switch

• 3-inch mounting plate

• L200‑20F temperature rating

  • Opens at 200°F

  • Closes at 180°F

• Automatic reset design

• Helps prevent overheating and short‑cycling

• Durable construction for long service life

• Direct‑fit replacement for fast installation

Function & Application

This limit switch monitors furnace temperature and opens the circuit if temperatures exceed safe operating levels. It is commonly used in:

• Rheem furnaces

• Ruud furnaces

• WeatherKing units

• OEM Protech replacement applications

A failing limit switch can cause:

• Furnace short‑cycling

• No‑heat conditions

• Blower running continuously

• Safety lockouts

Replacing it with the correct OEM part restores proper safety control.

Product Details

(From your Shopify listing)

• Part Number: 47‑25349‑05

• Type: 3" Limit Switch

• Temperature Rating: L200‑20F

• Weight: 0.399 lb

• Package Size: 10 × 12 × 12 in