SKU: 3950346097

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

$125.55 $139.50
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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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
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3950346097

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4.3 ★★★★★
Based on 18 reviews
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Product Reviews
S
Verified Purchase
Shea
Houston, US
★★★★★ 4
Good
Color: White, Size: 40
Looked nice but had to return no longer needed. Didn’t arrive as promised. Sizing was good. Value is ok.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
S
Verified Purchase
Savannah
New York, US
★★★★★ 5
Perfect fit and great quality for a costume
Color: Purple, Size: 34, Color: Purple, Size: 34
These worked perfectly for my husband’s Mayor Humdinger costume. The fit was spot on, the length was just right, and the color matched the picture almost exactly. The fabric doesn’t have any stretch, but it felt nice and well-made, giving the costume a polished look. Overall, a great choice if you need something that fits true to size and looks high quality for a costume.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2025
L
Verified Purchase
Leo
Waukegan, US
★★★★★ 5
Great dress/casual pants, but not all colors have the expanding waist.
Color: Green, Size: 31
I ordered the red pair in March for a Lady Gaga concert. I loved the material and they were comfortable and cool in the arena with all the people. In addition, with my 2026 New Year's resolution, I have been running everyday so I have dropped 2 pant sizes and most of my pants now slide off my waist. I really liked these pants because they have an expanding waist (like the newer tuxedo pants style), so even if I fluctuate in size they will still fit well. With summer approaching, I decided that I would replace my old pants that are now too big with these, so I ordered the other 19 colors. Sadly when they arrived, not all the colors come with an expanding waist. The colors that have the expanding waist - Red, Aqua, Light pink, Green, Hot pink, Royal blue, Purple, Navy, and Black. With my waist size still changing, I am hesitant to keep the other colors since they have a very tailored look and if they are slightly too tight or too loose, they will not look as clean. I am returning the other colors since my waist is still changing...I guess 9 out of 20 colors isn't bad.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
K
Verified Purchase
Kindle Customer
Chelsea, US
★★★★★ 3
Low rise pants
Color: Yellow, Size: 40
Its nice, but it was way to long and it fit more like a low rise pants. Didn't work cuz I'm a big guy and we dont do low rise. Size was right.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2025
N
Verified Purchase
Neil Davis
New York, US
★★★★★ 5
For its array of loud colors and audaciousness to capture the slim physique fashionably
Color: Hotpink, Size: 34, Color: Hotpink, Size: 34
Let me say that I love that the MOGU brand. It’s right up there with the International Concept which has been discontinued in Macy’s except for the women’s apparel. 5 out of 5 for the look, the feel, and the affordability. Its now one of my go to brands
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026

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