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Siemens

Model Q240

Internet #100059673

Store SKU #992607

Store SO SKU #516939

40 Amp Double-Pole Type QP Circuit Breaker

$10.88 /each
  • Provides a manual means of energizing and de-energizing a circuit
  • Easy plug in connections in Siemens load centers and meter combos
  • Accepts #8-#6 AWG Cu or #8-#4 AWG Al Wire

Frequently Bought Together

Product Overview

Siemens offers a wide array of thermal-magnetic circuit breakers that are the key element for overload and short-circuit protection of your home's electrical system. To provide additional protection Siemens offers circuit breakers to protect against severe electrical shock or electrocution, mitigate the risk of electrical fires and protect against damaging surges and Voltage spikes. Circuit breakers are intended for switching and protection of your home's wiring from high temperatures caused by excess current higher than the rating of the wire. While thermal-magnetic circuit breakers are the key element for overload and short-circuit protection of your electrical system, there are potentially dangerous conditions that do not involve over current.

  • 2-pole, 40 Amp, 240V type QP circuit breaker
  • 10,000 AIC interrupting rating
  • Siemens type QP circuit breakers provide easy plug-in connections in Siemens enclosures and the time saving insta-wire feature
  • Compatible with Siemens PL and ES series load centers
  • Use for overload and short-circuit protection of your electrical system
  • Thermal-magnetic
  • Learn More About Circuit Breakers Here in our Buying Guide.

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Customer Questions & Answers

3 Questions4 Answers

Customer Questions & Answers

40 Amp Double-Pole Type QP Circuit Breaker
40 Amp Double-Pole Type QP Circuit Breaker

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This question is from 40 Amp Double-Pole Type QP Circuit Breaker
 
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Can this breaker be used with aluminum wire?

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May 14, 2016
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May 25, 2016
Answer: 
Hi edefarm,
Yes, this breaker will accept #8-#4 AWG Aluminum wire.
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California
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Home Improvement Profile: Other
May 16, 2016
Answer: 
Hi Edefarm, yes you can use this breaker with aluminum wire, ensure you are using the correct size aluminum wire gauge .
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1 answer

Backfeeding

This question is from 40 Amp Double-Pole Type QP Circuit Breaker
Asked by
California
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August 5, 2015
Can this breaker be used to backfeed current from a solar PV inverter soutce?
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Answer (1)

August 17, 2015
Answer: 
Hi Geezer,
Yes, you can backfeed current from a Solar PV inverter to this type QP circuit breaker.
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Do I need two of these to connect a range?

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Columbus, Ohio
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June 29, 2014
My box has two rows, will this connect across both sides in the circuit breaker?
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Asked by
Garden Grove, CA
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July 2, 2014
Answer: 
Would have to see your service panel (box). These are typically stacked one atop one another, and the bus bar will have alternating stabs for each phase of the service (see picture). So, yes, this will be the breaker you would need to connect a 240V range rated at around 32A, but only if you have the same type of bus bar in your service panel.
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  • 2016-09-08 T11:41:15.104-05:00
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Customer Reviews

Rated 5.0 out of 5 by 2 reviewers.
Rated 5.0 out of 5.0 by Adding a 40 amp circuit breaker The product was simple to install and I was finished in less than 1 hour July 12, 2016
Rated 5.0 out of 5.0 by Great fit Very easy to install i have an older breaker panel and was expecting fitment issues but it went right in good product. August 27, 2010
  • 2016-09-08 T11:59:06.614-05:00
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