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Square D QOU340-1200 3 Pole Circuit Breaker

Brand Square D
SKU QOU340-1200
5.0
Rated 5.0 out of 5 stars
78 Reviews

Square D QOU340-1200 3 Pole Circuit Breaker

Brand Square D
SKU QOU340-1200
5.0
Rated 5.0 out of 5 stars
78 Reviews
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Square D QOU340-1200 3 Pole Circuit Breaker

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$203.72 No stock

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DescriptionSpecificationsSuperClubWarranties
Description

Square D QOU340-1200 3 Pole Circuit Breaker

Square D 3 Pole Circuit Breaker features a thermal magnetic molded case for extra protection. The circuit breaker has a current rating of 40 amps with a voltage rating of 240 v. It has an interrupt rating of 10 kA 120/240 V AC, 10 kA 240 V AC, 10 kA 120 V AC, 5 kA 48 V DC.

Specifications:

  • Manufacturer: Square D
  • Cat. No: QOU340-1200
  • Alternate Part No: QOU340-1200
  • Product Type: Circuit Breaker
  • Trip Unit Type: Thermal Magnetic
  • Frame Type: QOU
  • Phase: 3
  • Number Of Pole: 3
  • Voltage Rating: 240 V
  • Amperage Rating: 40 A
  • Connection: Feed-Thru
  • Functions: Long Time and Instantaneous
  • Interrupt Rating: 10 kA 120/240 V AC, 10 kA 240 V AC, 10 kA 120 V AC, 5 kA 48 V DC
  • Electrical Connection: Slotted Box Lugs, Line Side and Slotted Box Lugs, Load Side
  • AWG Gauge: AWG 14, AWG 2 Aluminium/Copper
  • Size: 4.05 Inch H x 3 Inch W x 2.95 Inch D
  • Mounting: Unit
  • Approval: IEC, CSA, UL
  • Authentic Square D Product

    Specifications

    Brand Square D
    Series QOU
    Amperage 40
    Voltage 240
    Poles 3
    Phase 3
    Mounting Type Unit
    Approval IEC, CSA, UL
    Interrupting Rating 10 kA 120/240 V AC, 10 kA 240 V AC, 10 kA 120 V AC, 5 kA 48 V DC
    Frame Type QOU
    Connection Type Feed-Thru
    Protection Thermal Magnetic
    Functions Long Time and Instantaneous
    Length (in) 2.95
    Width (in) 3
    Height (in) 4.05
    Wire Gauge AWG 14, AWG 2 Aluminium/Copper
    Mpn QOU340-1200
    Upc 785901160625
    Gtin 785901160625

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    Warranties

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    When shopping with SuperBreakers, you’ll have peace of mind knowing that every single item you purchase includes a 60 day warranty, free of charge. Why such confidence? Because only the highest quality electrical parts have a place on our shelves, and we stand by every single one we sell.

    If anything goes wrong with your item that is not a result of misuse or normal wear and tear, we’ll gladly replace it at no cost to you.

    Click here to read our full warranty details

    Shipping

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    Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please indicate at checkout if USPS or UPS is a required shipment method. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.

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    International Shipping

    All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.

    5.0
    Rated 5.0 out of 5 stars
    Based on 78 reviews
    Total 5 star reviews: 75 Total 4 star reviews: 3 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
    Reviews Summary
    Customers say these circuit breakers fit perfectly and arrive in excellent condition. Many reviews mention fast shipping and competitive pricing. The products consistently match specifications and include necessary mounting hardware. Reviews highlight reliable functionality, with users particularly noting the ease of installation. Several mention the convenience of finding hard-to-source models. Common feedback includes praise for accurate product descriptions and timely delivery.
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    78 reviews
    • AS
      Amy S.
      Verified Buyer
      Reviewing
      Square D QOU115 1 Pole Circuit Breaker
      I recommend this product
      Rated 5 out of 5 stars
      8/11/25
      Square D Breaker

      FAST, AND JUST AS DESCRIBED.

      Was this helpful?
    • BS
      Bernardo S.
      Verified Buyer
      Reviewing
      Square D QOU260 2 Pole Circuit Breaker
      I recommend this product
      Rated 5 out of 5 stars
      8/9/25
      60 amp Breaker

      Got it fast and works great

      Was this helpful?
    • J
      Jutt
      Reviewing
      Square D QOU3100 3 Pole Circuit Breaker
      I recommend this product
      Rated 5 out of 5 stars
      9/6/24
      5 Stars

      These guys are awesome. And even better customer service

      Was this helpful?
    • L
      Lucky
      Reviewing
      Square D QOU260 2 Pole Circuit Breaker
      I recommend this product
      Rated 5 out of 5 stars
      3/25/24
      5 Stars

      On time delivery.

      Was this helpful?
    • WS
      Walter S.
      Flag of United States
      Reviewing
      Square D QOU260 2 Pole Circuit Breaker
      I recommend this product
      Rated 5 out of 5 stars
      11/28/23
      Great Service, Fast Delivery, Definitely Use Again

      Very easy web site to use. Found exact parts I needed. Will definitely use SUPERBREAKERS again!

      Was this helpful?

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