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Square D QOB2100 - 100A 2 Pole Miniature Circuit Breaker

Brand Square D
SKU QOB2100
4.9
Rated 4.9 out of 5 stars
186 Reviews
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99

Square D QOB2100 - 100A 2 Pole Miniature Circuit Breaker

Brand Square D
SKU QOB2100
4.9
Rated 4.9 out of 5 stars
186 Reviews
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Earn 63 SuperPoints

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Square D QOB2100 - 100A 2 Pole Miniature Circuit Breaker

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$63.03 In stock

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DescriptionSpecificationsSuperClubWarranties
Description
Built for heavy-duty commercial applications, the Square D QOB2100 delivers 100A of thermal-magnetic protection in a two-pole configuration. It features a common trip mechanism and the highly visible Visi-Trip red indicator, which helps facility managers quickly locate tripped circuits. The breaker installs into NQ and NQOD panelboards via a secure bolt-on mounting system. Its box lug terminals accept 4 to 2/0 AWG wire. Rated at 10kAIC for 120/240VAC systems, it is fully HACR certified.

Specifications

Brand Square D
Series QOB
Part Number QOB2100
Amperage 100A
Voltage 120/240VAC, 48VDC
Poles 2
Phase 1
AIC Rating 10kA @ 120/240VAC, 5kA @ 48VDC
Mounting Style Bolt-On
Terminal Type Box Lugs
For Use With NQ Panelboards, NQOD Panelboards
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Wire Gauge 4 AWG - 2/0 AWG (Al/Cu)
Max Wire 2/0 AWG
Min Wire 4 AWG
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch
Accessories QOB2100-R
Standards CSA C22.2 No. 5, HACR, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Visual Trip Indicator, Common Trip

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Warranties

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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.

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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.
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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 186 reviews
Total 5 star reviews: 179 Total 4 star reviews: 6 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 1
Reviews Summary
Customers say this supplier delivers products quickly and efficiently. Many reviews highlight the extensive inventory availability and competitive pricing. The ordering process receives praise for its simplicity and ease of navigation. Frequent comments address the reliable delivery timeframes and well-packaged items. Reviews indicate the products arrive in excellent condition and match specifications accurately.
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186 reviews
  • MB
    Mark B.
    Verified Buyer
    Reviewing
    Square D QOB220 - 20A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/3/26
    Breakers

    Fast shipping. Just what we ordered.

    Was this helpful?
  • RM
    Richard M.
    Verified Buyer
    Reviewing
    Square D QOB350VH - 50A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/10/26
    Breaker

    The breaker was exactly what we ordered. Breaker works perfect.

    Was this helpful?
  • RC
    Randy C.
    Verified Buyer
    Reviewing
    Square D QOB120GFI - 20A GFCI Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/9/26
    GFCI Breakers

    Good price, prompt delivery.

    Was this helpful?
  • JA
    Jo A. L.
    Verified Buyer
    Reviewing
    Square D QOB120 - 20A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/8/26
    Great Service

    A difficult breaker to find in stock. Easy to order and quick to deliver

    Was this helpful?
  • LB
    Lawrence B. G.
    Verified Buyer
    Reviewing
    Square D QOB350 - 50A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/29/26
    Supervisor

    Had to exchange these for different breakers, process was easy and staff was very helpful, both times orders were shipped same day.

    Was this helpful?

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