Q120DFCSA - Siemens - 20 Amp Dual Function Circuit Breaker

Plug-In - 20 Amp - 1 Pole - 120 Volt

Siemens / ITE SKU: q120dfcsa
Q120DF - Siemens 20 Amp Single Pole Dual Function Arc Fault & Ground Fault Circuit Breaker
Q120DFCSA - Siemens - 20 Amp Dual Function Circuit Breaker
Q120DFCSA - Siemens - 20 Amp Dual Function Circuit Breaker
Q120DFCSA - Siemens - 20 Amp Dual Function Circuit Breaker

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Q120DFCSA - Siemens - 20 Amp Dual Function Circuit Breaker

Plug-In - 20 Amp - 1 Pole - 120 Volt

Siemens / ITE SKU: q120dfcsa
Regular price $106.00 Sale price $95.00 Save $11
  • In stock and ready to ship
  • Inventory on the way
Rush shipping options calculated at checkout.
  • Secure transaction
  • FREE & fast shipping on orders over $49
  • CSA approved with 1 year warranty
  • 30 day returns

Q120DFCSA - Siemens Dual Function (AFCI & GFCI) Circuit Breaker

Siemens Q series single pole 20 ampere plug-in Dual Function AFCI & GFCI Circuit Breaker with maximum voltage rating of 120V non-interchangeable LI thermal-magnetic trip and standard interrupting rating of 10 kiloampere at 120V complete with (LI) long-time.


  • Manufacturer : Siemens
  • Family: Q Dual Function AFCI & GFCI Circuit Breaker
  • Type Q
  • Old Cat. No. : Q120DF
  • 1 Pole
  • 20 Amp
  • 120 Volt
  • Phase : 1
  • Dimensions (H x W x L): 3" x 1" x 3"
  • Connection : Plug-In
  • Non-interchangeable LI thermal-magnetic trip
  • Functions: (LI) Long-Time and Instantaneous
  • Interrupting Rating: 10kA@120V
  • CSA Approved and UL Listed
  • Authentic Siemens Product

Returns are easy

You may return items within 30 days of delivery for a full refund.

View our return policy

FREE Shipping on orders over $49.

Canada Breakers offers one to five day delivery in Canada & United States. The variation depends on the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, Canada Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

Product Warranty - Q120DFCSA - Siemens - 20 Amp Dual Function Circuit Breaker

All products carry a 1-year warranty from Canada Breakers. All products sold by Canada Breakers are authentic, factory new and CSA approved.

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Customer Reviews

Based on 17 reviews
Peter K
Poor customer service for faulty breakers

If your Dual Combo breaker trips after install it don’t bank on getting anything refunded from these scammer. Stay local and buy local.

On Jun 13, 2023, at 11:20 AM, Canada Breakers wrote:

Hi Peter,

We generally don't refund defective breakers because in reality, the breaker is rarely defective. I'm happy to make an exception for you but I would like proof of a replacement being purchased. I apologize if I'm mistaken but as far as I know, Home Depot doesn't sell this breaker in a 20 amp.


Glad to hear you received the breaker.
Just to clarify your assumption that I picked the wrong size breaker I needed.

It was supposed to be a 20A, A 15A is sufficient for a 1 HP pool pump feeder with the timer circuit.

The 20A breaker was for a future bigger pump if the customer chose to upgrade. Hence the #12 feeders and 20A receptacle.

Hi Peter,

Good news, it looks like your return was received yesterday. Please give the inspection team a few days to process this. I reviewed your communication history and it looks like you need a 15 amp instead of a 20 amp breaker.

Jeff Searson
Pretty good

Decently priced, but my express shipping came 2 days late had me stressing. Thankfully arrived just in time for the job


As expected

Dan b.
As advertised!

Great check out and shipping. Breaker was exactly as advertised. CSA approved in Canada

François-Olivier Lebel-Lemire


Jeff Drinkwater

You provide a convenient and simple order process. You make it easy to track deliveries. Everything went smoothly and quickly from point of purchase to delivery.This was my first order with CanadaBreakers and I would definitely be a repeat customer and refer your company to others.


very good prices and very fast shipping

First time I purchased from Canada Breakers.

Only vendor who carried the parts I needed. Arrived the next day! Awesome vendor.