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Square D QOB330EPD - 30A GFEP Miniature Circuit Breaker

Brand Square D
SKU QOB330EPD
4.9
Rated 4.9 out of 5 stars
195 Reviews
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99

Square D QOB330EPD - 30A GFEP Miniature Circuit Breaker

Brand Square D
SKU QOB330EPD
4.9
Rated 4.9 out of 5 stars
195 Reviews
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Square D QOB330EPD - 30A GFEP Miniature Circuit Breaker

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$1044.00 In stock

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DescriptionSpecificationsSuperClubWarranties
Description
Engineered for commercial and industrial applications, this 30A three-pole GFEP device provides essential 30mA equipment-level ground fault protection. It installs securely into Square D NQ and NQOD panelboards via a standard bolt-on connection, ensuring reliable performance in demanding environments. Featuring a 10kAIC rating at 240VAC and the signature Visi-Trip indicator, maintenance personnel can quickly identify tripped circuits to minimize costly operational downtime.

Specifications

Brand Square D
Series QOB
Part Number QOB330EPD
Amperage 30A
Voltage 240VAC
Poles 3
Phase 3
AIC Rating 10kA @ 240VAC
Special Classification GFEP
Mounting Style Bolt-On
Terminal Type Pressure Plate
For Use With NQ Panelboards, NQOD Panelboards
Trip Technology Thermal Magnetic
Trip Function Code LIG
Trip Function Long-Time, Instantaneous, Ground Fault
Trip Adjustability Fixed
Wire Gauge 12-4 AWG (Al), 14-6 AWG (Cu)
Max Wire 4 AWG (Al), 6 AWG (Cu)
Min Wire 12 AWG (Al), 14 AWG (Cu)
Available Options Handle Padlock Attachment
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Visual Trip Indicator, Ground Fault Protection

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Warranties

We’ve got you covered!

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

Free Shipping Policy

Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.

Click here to read our full shipping policy
Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments

Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
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.

4.9
Rated 4.9 out of 5 stars
Based on 195 reviews
Total 5 star reviews: 187 Total 4 star reviews: 6 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 1
Reviews Summary
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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195 reviews
  • HH
    Hoa H.
    Verified Buyer
    Reviewing
    Square D QOB260 - 60A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/6/26
    HVAC breaker

    Excellent product ,service and fast shipping

    Was this helpful?
  • HH
    Hoa H.
    Verified Buyer
    Reviewing
    Square D QOB360 - 60A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/6/26
    HVAC breaker

    Good product and price.also excellent service and fast shipping

    Was this helpful?
  • CM
    Carl M.
    Verified Buyer
    Reviewing
    Square D QOB2100 - 100A 2 Pole Miniature Circuit Breaker
    Rated 3 out of 5 stars
    4/2/26
    It’s a breaker

    Only reason for a 3 star review vs 5 is the excessive emails from Superbreakers.

    Was this helpful?
  • CC
    Chris C.
    Verified Buyer
    Reviewing
    Square D QOB350 - 50A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/31/26
    Great Service

    I recently had an emergency need for (8) QOB350 circuit breakers. One call to Jake Thomas and we had secured the quantity I needed and rushed them out with next day air shipping. Jake and SuperBreakers were able to help me bring the project in on time.

    Was this helpful?
  • JI
    Jeffrey I.
    Verified Buyer
    Reviewing
    Square D QOB120GFI - 20A GFCI Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/25/26
    QOB120GFI

    Super-fast shipping, item just as described.

    Was this helpful?

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