Siemens D140 40-Amp QO Replacement Single Pole Circuit Breaker

by Siemens
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Siemens QO replacement breakers are UL listed for use in Square D QO brand load centers and are ideal for replacement of existing breakers or if expansion circuits are required. These 3/4-Inch breaker snap on to the QO type bussing. Siemens strongly recommends against the use of "used" breakers. The installation of used breakers in a Siemens panel will void the warranty on the panel. Siemens does not sell used breakers and has not approved any 3rd party sellers to do so.


  • 40-Amp
  • QO replacement
  • 3/4-Inch Frame
  • Plug in type
  • UL listed


  • Item Weight :4 ounces
  • Package Dimensions : 3 x 2.9 x 0.5 inches
  • Item model number : D140
  • Size :40-Amp
  • Item Package Quantity : 1


2 years warranty through Manufacturer

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