Rheem-Ruud 47-20045-02 Limit Switch

Rheem-Ruud 47-20045-02 Limit Switch

  • $42.00


Controls, Temperature, 110 degrees F Fixed Close Temperature, 150 degrees F Fixed Open Temperature, DPST Normally Closed Switch, Auto Reset Limit Switch (Red Color Coded)

47-20045-02 is the direct replacement for 47-20045-01

Rheem-Ruud 47-20045-02 Limit Switch – Auto Reset | 110°F Close / 150°F Open | 230VAC | Red Color Coded

The Rheem-Ruud 47-20045-02 Limit Switch is a high-performance, auto-reset temperature control switch designed for HVAC systems. Engineered for accuracy and durability, this DPST normally closed switch automatically resets, closing at 110°F and opening at 150°F, making it ideal for heating, ventilation, air conditioning, and refrigeration (HVAC/R) applications.

✅ Product Features:

  • Auto Reset Limit Switch – Closes at 110°F and opens at 150°F

  • Normally Closed – Restores automatically when temperature drops

  • Voltage Rating: 230VAC

  • Switch Type: Double Pole, Single Throw (DPST)

  • Color: Red coded for quick identification

🔧 Easy to Install – Flexible Terminal Options:

  • Push-in receptacles for stripped wire

  • Female receptacles for 1/4" male flag connectors

  • Field add-on screw terminals

🔩 Universal Fit:

  • Adapts to multiple mounting hole patterns

  • Includes mounting adapters and strain relief bushings to protect wiring

🔁 Manual Fan Switch Override:

Allows the fan to run continuously when needed—boosting system flexibility and comfort control.


Part Number: 47-20045-02
Brand: Rheem / Ruud
Category: HVAC Limit Switches
Country of Origin: Not specified
Condition: New


⚠️ Important Safety Notice:
Installation of HVAC or refrigeration components should only be performed by a licensed technician. Incorrect installation may result in property damage, personal injury, or loss of life. Always follow manufacturer guidelines and local code requirements.

⚠️ California Proposition 65 Warning:
This product may contain materials known to the State of California to cause cancer, birth defects, or reproductive harm.


Reliable, precise, and compatible—choose the Rheem-Ruud 47-20045-02 for dependable HVAC performance.

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