Square D QOB340GFI 40A 3-Pole GFCI Circuit Breaker
Square D QOB340GFI 40A 3-Pole GFCI Circuit Breaker — alternate product view 2
Square D QOB340GFI 40A 3-Pole GFCI Circuit Breaker — alternate product view 3
Square D QOB340GFI 40A 3-Pole GFCI Circuit Breaker — alternate product view 4
Square D QOB340GFI 40A 3-Pole GFCI Circuit Breaker — alternate product view 5
Square D QOB340GFI 40A 3-Pole GFCI Circuit Breaker
Square D QOB340GFI 40A 3-Pole GFCI Circuit Breaker — alternate product view 2
Square D QOB340GFI 40A 3-Pole GFCI Circuit Breaker — alternate product view 3
Square D QOB340GFI 40A 3-Pole GFCI Circuit Breaker — alternate product view 4
Square D QOB340GFI 40A 3-Pole GFCI Circuit Breaker — alternate product view 5

Disclaimer: Actual product colors may vary slightly from the images shown due to different monitor settings and lighting conditions during photo shoots.

Square D

Square D QOB340GFI 40A 3-Pole GFCI Circuit Breaker

Out of stock
SKU: QOB340GFI UPC: 785901167280
(0)
$400.00
-20% $500.00 $400.00
Out of stock
Condition

QOB340GFI voltage correction: Catalog QOB340GFI identifies Square D's three-pole, bolt-on GFCI for 208Y/120-volt systems. Its Class A sensing protects personnel at the 6mA level; it should not be described as a generic 120/240-volt three-phase breaker.

QOB340GFI specifications

  • Catalog number: QOB340GFI
  • Current and poles: 40A, 3-pole
  • Voltage: 208Y/120VAC
  • Interrupting capacity: 10kA
  • Ground-fault trip: Class A, 6mA
  • Mounting: QOB bolt-on with neutral pigtail

QOB versus QO plug-in

QOB indicates a bolted bus connection. A QO plug-in breaker or a unit with a different voltage configuration is not an automatic substitute, even if amperage and pole count match.

Three-phase application check

Verify the equipment label, grounded-wye system, neutral arrangement, available fault current, conductors, hardware, and terminal torque. Installation and GFCI testing should be completed by qualified personnel.

There is a $15 charge for delivery. Additional charges will be imposed by our couriers for delivery to remote areas, a surcharge may be levied to cover carriage to these areas.

Warranty Coverage

We stand behind every product we sell. Coverage depends on the condition of the item at time of purchase:

  • New: 12-month warranty
  • New Open Box: 10-month warranty
  • Reconditioned: 90-day warranty

Warranty coverage begins on the date of delivery and covers manufacturing and functional defects under normal use. It does not cover damage from misuse, improper installation, or unauthorized repair. To make a warranty claim, contact us at support@breakersmart.com with your order number and a description of the issue.