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Square D QOB230GF I - 30A GFCI Miniature Circuit Breaker
- 30A
- 2 Pole
- Bolt-On
Square D
QOB230GF
I - 30A GFCI Miniature Circuit Breaker
Brand
Square D
SKU
QOB230GF
Quantity
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Square D QOB230GFI - 30A GFCI Miniature Circuit Breaker
New
Quantity
Quantity
Square D QOB230GFI - 30A GFCI Miniature Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | QOB230GF |
| Series | QOB |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Pressure Plate |
|---|---|
| For Use With | NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 12-8 AWG (Al), 14-8 AWG (Cu) |
| Max Wire | 8 AWG |
| Min Wire | 12 AWG (Al), 14 AWG (Cu) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Pigtail Neutral |
| Standards | CSA C22.2 No. 144, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, Common Trip |
Sold out
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Square D QOB230GFI - 30A GFCI Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QOB230GF-R |
| Series | QOB |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Pressure Plate |
|---|---|
| For Use With | NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 12-8 AWG (Al), 14-8 AWG (Cu) |
| Max Wire | 8 AWG |
| Min Wire | 12 AWG (Al), 14 AWG (Cu) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Pigtail Neutral |
| Standards | CSA C22.2 No. 144, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, Common Trip |
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Description
Engineered for commercial and industrial applications, the Square D QOB230GF delivers reliable 6mA Class A ground fault protection. This 30-amp, two-pole miniature circuit breaker is essential for meeting NEC requirements in wet or damp locations where personnel safety is critical. The bolt-on mounting style ensures a firm, vibration-resistant connection within Square D NQ and NQOD panelboards.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOB230GF |
| Series | QOB |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Pressure Plate |
|---|---|
| For Use With | NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 12-8 AWG (Al), 14-8 AWG (Cu) |
| Max Wire | 8 AWG |
| Min Wire | 12 AWG (Al), 14 AWG (Cu) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Pigtail Neutral |
| Standards | CSA C22.2 No. 144, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, Common Trip |
Product FAQs
8 answersCan I install the QOB230GF in a standard QO load center?
No. The QOB230GF features a bolt-on connection designed exclusively for commercial NQ and NQOD panelboards. It will not mount securely in standard QO plug-on load centers or Homeline residential panels.
What is the difference between the QOB230GF and the QO230GF?
Both models provide identical 30A, 2-pole ground fault protection, but they feature different mounting mechanisms. The QOB230GF is a bolt-on breaker for industrial and commercial panelboards, while the QO230GF is a plug-on breaker for residential QO load centers.
How many panel spaces does this breaker require?
As a 2-pole miniature circuit breaker, the QOB230GF requires two standard one-inch mounting spaces in your NQ or NQOD panelboard.
What is the purpose of the white pigtail wire on this GFCI breaker?
The integrated pigtail neutral must be connected directly to the panelboard neutral bar. This connection provides the return path necessary to power the internal circuitry that monitors the circuit for ground faults.
Does the QOB230GF feature a visual trip indicator?
Yes. It includes the signature Square D Visi-Trip indicator, which displays a highly visible red flag when the breaker trips due to an overload, short circuit, or ground fault. This helps quickly identify the faulted circuit in a busy panel.
What type of ground fault protection does this breaker offer?
The QOB230GF provides Class A ground fault protection for personnel. It is designed to trip when a ground fault of 4 to 6 milliamperes is detected, making it strictly compliant for applications like commercial kitchens, bathrooms, and outdoor circuits.
How do I verify the ground fault protection is working?
The QOB230GF includes a dedicated push-to-test button on the face of the breaker. Pressing this button simulates a ground fault condition and should immediately trip the breaker, verifying that the internal safety monitoring is active.
Is the QOB230GF suitable for use with HVAC equipment?
Yes. This circuit breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires a 30A, 2-pole GFCI breaker.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 205 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 3/11/26
Customers say these electrical breakers arrive exactly as ordered and work perfectly for their intended applications. They consistently praise the competitive pricing, which many report is significantly lower than local suppliers. Fast shipping and prompt delivery are frequently highlighted, with many receiving orders within days or even next-day delivery for urgent needs. The breakers arrive well-packaged and in excellent condition. Many reviews emphasize the company's extensive inventory availability, particularly for hard-to-find breakers. One customer experienced difficulty with order cancellation and was charged a restocking fee, which caused dissatisfaction.
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Rating
205 reviews
- BLBOOSTIX L.Verified BuyerReviewingSquare D QOB220 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/17/26QOB220
That's nice breakers!
- PHPaul H.Verified BuyerReviewingSquare D QOB330 - 30A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/5/26Quick shipping and delivery
Shipped and delivered on time for installation at one of our projects. Thank you!
- RMRick M.Verified BuyerReviewingSquare D QOB220 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/3/26Project Mgr
Just what I needed.
- DHDoug H.Verified BuyerReviewingSquare D QOB220 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/3/26Square D QOB breakers
As always, our order arrived timely, and accurate. You can’t beat their prices that’s why we have used this company for years.
- RKRyan K.Verified BuyerReviewingSquare D QOB230VH - 30A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/1/26Awesome
Worked great