Square D QOB340 40A 3-Pole Standard – Bolt-On – 120/240V
SKU: 61007635331

Square D QOB340 40A 3-Pole Standard – Bolt-On – 120/240V

Sale price$65.25 Regular price$72.50
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Description

Square D QOB340 40A 3-Pole Standard – Bolt-On – 120/240VThe Square D QOB340 40A 3 Pole Standard Bolt On 120 240V circuit breaker provides dependable 40 Amp, 3 pole thermal magnetic protection for residential and commercial 120 240V AC systems. Designed for Square D QO loadcenters and NQ NQOD panelboards, this bolt on breaker features a 10 kAIC interrupt rating, ensuring reliable overcurrent protection. The thermal magnetic trip mechanism and Visi Trip indicator allow for fast fault identification and

The Square D QOB340 40A 3-Pole Standard – Bolt-On – 120/240V  circuit breaker provides dependable 40 Amp, 3-pole thermal-magnetic protection for residential and commercial 120/240V AC systems. Designed for Square D QO loadcenters and NQ/NQOD panelboards, this bolt-on breaker features a 10 kAIC interrupt rating, ensuring reliable overcurrent protection. The thermal-magnetic trip mechanism and Visi-Trip indicator allow for fast fault identification and troubleshooting. With support for copper and aluminum conductors up to AWG 2, it delivers durable and safe performance for branch circuits in both commercial and residential applications.

Voltage and Rating

  • Current Rating: 40 Amps
  • Voltage Rating: 120/240 Volts AC
  • Interrupting Capacity: 10 kAIC
  • Frequency: 50/60 Hz

Key Specifications

  • Breaker Type: Standard (thermal-magnetic)
  • Number of Poles: 3-Pole
  • Mounting Type: Bolt-On
  • Product Range: QO (for Square D QO loadcenters, NQ and NQOD panelboards and equipment)
  • Application: Residential and commercial branch circuit protection
  • Special Features: Thermal-magnetic trip, Visi-Trip indicator
  • Ratings: UL Listed, CSA

Technical Specifications

  • Connection Type: Bolt-on
  • Wire Size: AWG 8–2 Cu/Al
  • Terminal Tightening Torque: 44.3 lb-in
  • Operating Mechanism: Thermal-magnetic
  • Interrupt Rating: 10 kAIC
  • Certifications: UL Listed, CSA

Product Data

  • Manufacturer: Schneider Electric
  • Brand: Square D
  • Model Number: QOB340
  • UPC: 785901417149

Dimensions

    • Height: 3.1 in
    • Width: 2.2 in
    • Depth: 2.9 in
    • Weight: 0.800 lbs
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 61007635331

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Lamesha
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★★★★★ 1
Software won't respond
The software that came with it keeps saying not responding so I haven't been able to print anything since I installed the new cartridge a month ago
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Reviewed in the United States on April 18, 2026
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Terry
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★★★★★ 5
Epson tried to rip me off!
Called Epson about my computer saying the waste ink pad was at the end of life and I needed a new printer. I googled it and found I just could replace the waste ink container myself.
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Reviewed in the United States on March 22, 2026
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Alda
Massapequa, US
★★★★★ 5
Very good product. Great Price!
Color: White Ink Pad 2xin
Very good product. Easy to install. All the installation and reset instructions were clearly detailed. I'll definitely buy again.
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Reviewed in the United States on June 7, 2026
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Jill Thorne
San Leandro, US
★★★★★ 5
Don't have to be a computer whiz to use, simple instructions
Color: White Ink Pad 2xin
I am not a techy person and when I got the message that my ink pad was full, I thought I would have to buy a new printer. I have a small craft business, and my printers are ESSENTIAL to me. I have never done anything like this before, and it literally took me 2 minutes. I am so excited and relieved that my printer is up and running. The package came with 2 ink pads, detailed instructions, gloves, a waste bag and a screwdriver. Perfect! Just followed the step by step directions and I was done! Yay! Thank you so very much. Saved me so much money and aggravation. Highly recommend.
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Reviewed in the United States on June 10, 2026
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Nicole Reiche
Phoenix, US
★★★★★ 5
Good price and good dupe of brand name
Color: White Ink Pad 2xin
Easy to install. Cheaper than buying brand name. Fix perfectly and now I can print again
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Reviewed in the United States on May 15, 2026

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