Section 9: Panelboards PDF

Section 9: Panelboards PDF

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QOB GFI/EPD/EPE Circuit Breakers

Schneider Electric™ Square D™ QOB (bolt-on) circuit breakers provide dependable circuit protection for commercial, industrial, and panelboard applications. Available in GFI, EPD, and EPE configurations, these UL Listed breakers combine overcurrent and ground-fault protection in a compact bolt-on design for NQ panelboards.

Equipment Protection Device (QOB-GFI/EPD/EPE)

QOB GFI, EPD, and EPE circuits breakers offer thermal-magnetic protection, bolt-on installation, and interrupting ratings up to 10 kA AIR (22 kA AIR on select models). QOB-GFI breakers are UL Listed Class A devices with 4–6 mA ground-fault protection for personnel safety, while QOB-EPD and QOB-EPE models provide 30 mA and 100 mA equipment ground-fault protection to help safeguard electrical equipment. These breakers are available in 1-, 2-, and 3-pole configurations with ampere ratings ranging from 15A to 60A, depending on model.

For additional information, refer to NO Panelboards online.

QOB-GFI, QOB-EPD, and QOB-EPE Circuit Breakers

Ampere Rating [1]

One-pole

Two-pole—Common Trip

Three-pole—Common Trip

Catalog No.

Catalog No.

Catalog No.

Catalog No.

QOB-GFI—QOB Qwik-Gard™ Circuit Breaker With Ground Fault Circuit Interrupter—UL Class A 4–6 mA People Protection. [2]

120 Vac—10 k AIR[3]

120/240 Vac—
10 k AIR[3]
48 Vdc—5 k AIR

208Y/120 Vac—10 k AIR

 15 A

QOB115GFI

QOB215GFI

QOB315GFI

  

 20 A

QOB120GFI

QOB220GFI

QOB320GFI

  

 25 A

QOB125GFI

QOB225GFI

—

  

 30 A

QOB130GFI

QOB230GFI

QOB330GFI

  

 40 A

—

QOB240GFI

QOB340GFI

  

 50 A

—

QOB250GFI

QOB350GFI

  

 60 A

—

QOB260GFI[4]

—

  

QOB-VHGFI [5]

120 Vac—22 k AIR[3]

 15 A

QOB115VHGFI

      

 20 A

QOB120VHGFI

      

 25 A

QOB125VHGFI

      

 30 A

QOB130VHGFI

      

QOB-EPD—QOB Equipment protection circuit breakers

with UL Listed 30 mA (EPD) or 100 mA (EPE) equipment protection.

120 Vac—10 k AIR[3]

120/240 Vac—
10 k AIR[3]

240 Vac—10 k AIR[3]

 15 A

QOB115EPD

QOB215EPD

QOB315EPD

QOB315EPE

 20 A

QOB120EPD

QOB220EPD

QOB320EPD

QOB320EPE

 25 A

QOB125EPD

QOB225EPD

—

—

 30 A

QOB130EPD

QOB230EPD

QOB330EPD

QOB330EPE

 40 A

—

QOB240EPD

QOB340EPD

QOB340EPE

 50 A

—

QOB250EPD

QOB350EPD

QOB350EPE

 60 A

—

QOB260EPD

—

—

QOB-VHEPD

120 Vac—22 k AIR[3]

 15 A

QOB115VHEPD

      

 20 A

QOB120VHEPD

      

 25 A

QOB125VHEPD

      

 30 A

QOB130VHEPD

      

QOB-HM—High magnetic trip circuit breakers

15 A

QOB115HM[6]

      

20 A

QOB120HM[6]

    

QOB-K—Key operated QOB circuit breakers [7]

120 Vac—10 k AIR[3]

10 A

QOB110K

      

15 A

QOB115K

      

20 A

QOB120K

      

25 A

QOB125K

      

30 A

QOB130K

      

Footnotes

  1. 10–30 A circuit breakers are suitable for use with 60 °C or 75 °C conductors. 35–60 A circuit breakers are suitable for use with 75 °C conductors.
  2. Do not connect to more than 250 feet of load conductor for the total one-way run to prevent nuisance tripping.
  3. May be applied in 208Y/120 Vac systems.
  4. Suitable only for feeding 240 Vac and 208 Vac two-wire loads. Does not contain load neutral connection.
  5. Recommended for applications where high initial inrush may occur and for individual dimmer applications.
  6. UL Listed as SWD (switching duty) rated suitable for switching 120 Vac fluorescent lighting loads.
  7. Available in single pole construction and can be mounted in any single pole space which will accept a standard QOB. These circuit breakers can be turned ON or OFF or RESET with a special key (Catalog No. QOK10) included with the circuit breaker. These circuit breakers are UL Listed and available as shown in the table.
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