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QO(B) circuit breakers come in plug-on or bolt-on options and a complete range of amperages and interrupting ranges to fit into various QO distribution panels. QO is the “World’s Finest” Industry leading offer since 1955, with features engineered for faster installation, reliability and quality.
Specifications
- Product: Miniature circuit-breaker
- Range: QO
- Current Rating: 20 A
- Inturrupt Rating: 10 kA 120/240 V AC 50/60 Hz, 10 kA 120 V AC 50/60 Hz, 5 kA 48 V DC
- Certifications: UL listed, CSA
- Voltage Rating: 120/240 V AC, 120 V AC, 48 V DC
- Mounting Type: Plug-in
- Number of Poles: 2
- Number of Panel Spaces: 2
- Circuit Breaker Type: Standard
- Ratings: HACR rated
- Electrical Connection: Pressure plate
- Wire Size: AWG 14...AWG 8 copper or aluminium
- Warranty: 18 months
Features:
- Tamper proof construction
- Direct mounting on tubing
- UL & CSA recognize
Maintenance & Troubleshooting:
- Pressure switches are commonly replaced when a furnace or HVAC system will not complete its startup sequence due to pressure/airflow proving issues.
- Customer feedback commonly associates replacement with resolving a "pressure switch" fault condition and restoring normal operation.
- The provided sources do not include diagnostic procedures; follow the equipment documentation for troubleshooting steps and verification before replacement.
User Reviews & Q&A Summary:
- Review themes indicate the part is commonly described as an exact fit and used as a direct replacement to get a furnace running again.
- Several reviews mention the unit returned to normal operation after installation, including clearing a fault condition related to the pressure switch.
- Additional feedback highlights ease of ordering and timely delivery, and notes that this part fit where other attempted parts did not.
Certifications & Compliance:
- Rheem includes a California Proposition 65 warning for this pressure switch kit on its parts listing
- No other separate certifications or listings are explicitly stated for this part in the provided sources
User Reviews & Q&A Summary:
- Common review themes: direct-fit replacement that fixes "no heat" situations and gets the furnace running again, often described as an easy swap once accessed
- Several reviewers note this is an updated version of the original design and may mount differently (users mention included hardware such as a longer screw/spacer to accommodate the revised mounting)
- Q&A themes emphasize that pressure switch ratings/markings are not interchangeable by appearance alone; customers are advised to confirm the correct part by furnace model/serial rather than substituting based on pressure markings
Product Highlights
20 Amps 
120/240V 
18 Month WarrantySpecs
| Product Type: | Circuit Breaker |
|---|---|
| Poles: | 2 |
| Amperage: | 20 |
| Voltage: | 120/240V |
| Features: | Overload Protection Short-Circuit Protection |
| Warranty: | 18 Month |
Reviews
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