SKU: 3950346097

Square D QO3301021 30A 3 Pole 120/240V Plug-In Thermal Magnetic Circuit Breaker w/ 120V Shunt Trip 10kAIC @240V

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Description

Square D QO3301021 30A 3 Pole 120/240V Plug-In Thermal Magnetic Circuit Breaker w/ 120V Shunt Trip 10kAIC @240VSquare D QO3301021 30A 3 Pole 120 240V Plug In Circuit Breaker w 120V Shunt Trip 10kAIC @240V Product Description The Square D QO3301021 is a 30 Amp, 3 Pole, 120 240 Volt plug in thermal magnetic circuit breaker designed for use in Square D QO load centers and panelboards. This breaker includes a factory installed 120V AC shunt trip, allowing the breaker to be remotely tripped for emergency shutdown systems, safety interlocks, or fire alarm

Square D QO3301021 30A 3 Pole 120/240V Plug-In Circuit Breaker w/ 120V Shunt Trip 10kAIC @240V

Product Description

The Square D QO3301021 is a 30 Amp, 3 Pole, 120/240 Volt plug-in thermal magnetic circuit breaker designed for use in Square D QO load centers and panelboards. This breaker includes a factory-installed 120V AC shunt trip, allowing the breaker to be remotely tripped for emergency shutdown systems, safety interlocks, or fire alarm integration.

Engineered with Square D’s trusted QO technology, the breaker provides fast and reliable protection against overloads and short circuits. It features a 10kA interrupting rating at 240V, making it suitable for residential, commercial, and light industrial electrical distribution systems.

The plug-on mounting design allows for quick installation in compatible Square D QO series panels, while the integrated shunt trip provides remote tripping capability when energized by a 120V control signal.

Key Features

  • Factory installed 120V AC Shunt Trip

  • Reliable thermal magnetic trip mechanism

  • 10kA interrupting rating at 240V

  • Plug-in design for quick installation

  • Compatible with Square D QO load centers and panelboards

  • Provides remote emergency disconnect capability

  • Trusted Square D QO series protection

Technical Specifications

Key Features

• 30 Amp breaker
• 3 Pole configuration
• 120/240 Volt rating
• 10kA interrupting rating @240V
• 120V AC shunt trip installed
• Thermal magnetic protection
• Plug-in mounting design
• Fits Square D QO panels and load centers

Technical Specifications

Manufacturer: Square D
Series: QO
Catalog Number: QO3301021
Breaker Type: Thermal Magnetic
Amperage: 30A
Poles: 3
Voltage: 120/240V
Interrupt Rating: 10kA @240V
Shunt Trip Voltage: 120V AC
Mounting Type: Plug-In
Application: Branch Circuit Protection

Product Data

Brand: Square D
Model: QO3301021
Amperage: 30A
Poles: 3
Voltage: 120/240V
Interrupt Rating: 10kA @240V
Shunt Trip: 120V AC
Mounting: Plug-In
GTIN: 785901494119

Shipping Notes
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Exchange/Return Notes
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SKU: 3950346097

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4.4 ★★★★★
Based on 27 reviews
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Product Reviews
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Verified Purchase
❈ Elizabeth ❈ | Breakawayreads
Draper, US
★★★★★ 5
Fallen Angels, fae, vampires, oh my!
Format: Kindle
Rating: 4.5 | Spice: 2 (but a good slow-burn) • Main Characters: Huntyr and Wolf • I couldn’t wait to read this book; there was so much hype about it! And there was no doubt why. I fell in love with the characters and the plot itself. This book is mainly plot driven more than friction driven but it’s easy to follow along with. The characters are fun, easily understood. The main setting is at an academy where both the main characters are going through trials and building strength for the final test, The Transcendent. There are fantastic side characters as well. I loved the camaraderie between Huntyr and her friends. But we don’t like Lanson. 😆 We do have some plot twists that come into play throughout the book. Secrets and betrayal to be seen. I did adore Wolf and Huntyr’s relationship. It was a classic slow burn trope. They didn’t hit it off fast, but in time their feelings grew. I loved their banter, so sexy. Wolf is your next book boyfriend; Huntyr is your next vampire assassin independent bad-a*s female. Themes include loyalty, trust, self-discovery, a true slow burn romance. Side note: book ends on a angsty cliffhanger! • Emily, thank you for writing this awesome novel and I cannot wait to devour Book 2, Blood So Brutal! 😍 • Happy reading, my lovelies! xo
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2024
M
Verified Purchase
MelsABookworm
Boise, US
★★★★★ 4
“My heart bows to you and you only, Huntress.”
Format: Kindle
3.5 🌟 This book popped up in my KU recommended reading suggestions and the synopsis sounded like what I was in the mood for. I'm so glad I took a chance on it. I went into this knowing absolutely nothing about it and ended up really liking it. I love when this happens. The main characters are likeable and I easily found myself rooting for them. There is a mystery element to each of their backstories that I enjoyed watching unfold and can't wait to get more of. Wolf, in particular, has me fixated. Love him. I found this to be an entertaining, addictive read with a plot that moves along at a good pace. It reads so easily I found myself very reluctant to put it down. Lots of twists and turns and the angst is there. A good set up for the next book to come, for sure. My issues with this book....the dialogue feels a bit juvenile at times and there is a repetitive over use of a particular word phrasing that I found myself giving the ole eye-roll to. There are, without a doubt, some pretty cliche moments that gave me a bit of the cringe. I think this could've certainly 100% benefited from more depth regarding the world building. Perhaps the world building was sacrificed to keep the pacing quick? Just a guess. Also, the lack of consistency of character for the FMC was really evident and so she feels quite illogical at times. Overall, this was a fun and enjoyable read that hit the spot well enough for me. That ending certainly has me impatiently pining for book 2!
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Reviewed in the United States on June 18, 2024
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 3
Interesting take on the genre
Format: Kindle
True rating: 3.25 ⭐️ I enjoyed the fresh take on the genre. The best way I could describe the setting and world is an apocalyptic dystopian version of Farie where vampires, fae, and angles struggle to survive in what is left of the world. It was definitely interesting throwing the academy/hunger games aspect into this world as well. Even though I guessed the final reveal early on in the book, I kept hoping I was wrong, and it would take a surprising turn. While the "plot twists" were a bit predictable to me, I still enjoyed the ride this book took me on. Another downfall for me was the plot holes in the world building... I.E. if society has fallen and the world is in the aftermath of war, how are there trains running around the world? Just to take young adults to the trials to get into the golden city? How is the train maintained, the tracks clear, etc? However, I did enjoy the FMC & MMC and thought they were fleshed out nicely. I also enjoyed the side characters but wish some were developed more like Ashalin (sp?). I do find myself rooting for the MCs to succeed and find happiness together, which is obviously an important aspect for romantasy. Overall, was this an earth-shattering, mind-bending, terrific piece of literature? No. But was it the worst thing I've read this year? Also, no. This book has, to me, the bones of a great read & just needs a bit more to push it from an alright book to a great book. Overall ratings: Plot- 3.5⭐️ World building 3⭐️ Spice 2.5 🌶🌶 Main characters 4 ⭐️ Supporting characters 3.5⭐️
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Reviewed in the United States on May 12, 2024
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Verified Purchase
Irene zamora
Omaha, US
★★★★★ 5
great book
Format: Kindle
I am really excited to meet the author at the book retreat this month. I really enjoyed this world that she built and most of the female main character Huntress is so awesome. She goes through a lot in this book and the ending; wow! I wouldn't have even guessed. I highly recommend everyone to read this book. I have been so lucky this year that almost all the books I have read have been, so far, 5 out 5 stars.
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Reviewed in the United States on June 2, 2026
A
Verified Purchase
Anastasia Goygova
Houston, US
★★★★★ 4
Fallen for the Fallen Angel – A Guilty Pleasure Worth Every Page
Format: Kindle
There’s something deeply irresistible about a dark academia or trial-based setting, a brooding and arrogant fallen angel, and a fierce heroine with enough sass to go toe-to-toe with him. Wings So Wicked is exactly that kind of book—and I devoured it in just a couple of days. To be fair, the plot isn’t groundbreaking. If you’re looking for something fresh and innovative in terms of storyline, this might not be it. But if your reader heart beats faster at the mere mention of enemies-to-lovers, jealousy-fueled banter, magical trials, betrayals, and forbidden tension—you’ll feel right at home. It’s like catnip for those of us with this particular weakness. The chemistry between the leads could have used a slightly slower burn to make the tension sizzle longer, but I still found myself completely invested in their dynamic. There are moments and phrases that feel a bit cheesy or underdeveloped, but honestly? I didn’t care. The vibes were exactly what I wanted. This book isn’t trying to reinvent the genre—it’s here to give readers like me what we crave: high-stakes magical drama, angsty romance, and the thrill of watching a badass girl and her brooding counterpart clash and spark. If that sounds like your kind of story, Wings So Wicked will hit the mark. Here’s hoping Book 2 turns up the heat and keeps the magic alive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2025

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