Q-Line THQL Series 2 Pole Plug-In Circuit Breaker (120/240V, 50A)
Q-Line THQL Series 2 Pole Plug-In Circuit Breaker (120/240V, 50A) $19.53each
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4.15" OD, Stock PVL Variable Pitch Pulleys (5/8" Bore)
4.15" OD, Stock PVL Variable Pitch Pulleys (5/8" Bore) $29.12each
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3.75″ OD Stock PVP Variable Pitch Single Groove Pulleys (1/2″ Bore)

SKU: PVP4012

$35.33each

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Description

This item is a Q-Line THQL Series 2 Pole Plug-In Circuit Breaker (120/240V, 50A) manufactured by ABB.

Features

  • All fitted with hollow head set screws
  • Any standard double groove Packard Drive sheave can be used as a companion sheave

Specifications

  • Dimension (In.) K 21/32
  • Dimension (In.) L 1-7/8
  • Dimension (In.) O.D. 3.75
  • 3L Belts Max. Pitch 3.1
  • 3L Belts Min. Pitch 2.3
  • 3L Belts Turns Open 0
  • 4L or A Belts Max. Datum 3.4
  • 4L or A Belts Min. Datum 2.4
  • 4L or A Belts Turns Open 0
  • 5L or B Belts Max. Datum 3.7
  • 5L or B Belts Min. Datum 2.7
  • 5L or B Belts Min. Turns Open 6
  • Outside Diameter (In.) 3.75
  • Dimension (In.) F Max. 1-1/16
  • Dimension (In.) F Min. 11/16
  • Dimension (In.) G Max. 7/8
  • Dimension (In.) G Min. 1/2
  • Stock Bore (In.) 1/2
  • 3L Belts Min. Turns Open 4
  • 3L Belts Max. Turns Open 0
  • 4L or A Belts Min. Turns Open 5
  • 4L or A Belts Max. Turns Open 0
  • 5L or B Belts Max. Turns Open 1
  • Pulley Type 1

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

Product Highlight: Voltage120v, 120-240V, 240v      Product Highlight: Amperage50 Amps

Specs

Product Type:

Pulley