SKU: 78504887234

Square D Q4L3400 400A 3-Pole 240V Molded Case Circuit Breaker Thermal Magnetic 25kA@240V

Sale price$674.55 Regular price$749.50
Save 10%

Pay in installments of $187.38 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Square D Q4L3400 400A 3-Pole 240V Molded Case Circuit Breaker Thermal Magnetic 25kA@240VProduct Description The Square D Q4L3400 is a 400 Amp, 3 Pole thermal magnetic molded case circuit breaker designed for commercial and industrial power distribution applications. This Q4 frame breaker provides reliable overload and short circuit protection and features line and load side lugs for unit mounted installations. The thermal magnetic trip unit offers dependable circuit protection while maintaining simple operation and maintenance. Key

Product Description

The Square D Q4L3400 is a 400 Amp, 3-Pole thermal magnetic molded case circuit breaker designed for commercial and industrial power distribution applications. This Q4-frame breaker provides reliable overload and short-circuit protection and features line and load side lugs for unit-mounted installations. The thermal magnetic trip unit offers dependable circuit protection while maintaining simple operation and maintenance.


Key Features

  • Catalog Number: Q4L3400
  • Manufacturer: Square D / Schneider Electric
  • Amperage: 400 Amp
  • Poles: 3-Pole
  • Voltage Rating: 240VAC
  • Thermal Magnetic Trip Unit
  • Unit Mount Design
  • Line & Load Side Lugs
  • Push-to-Trip Feature
  • Trip Indication Handle
  • Feed-Through Construction
  • UL 489 Listed
  • CSA Certified
  • Suitable for Commercial & Industrial Applications

Technical Specifications

  • Manufacturer: Square D / Schneider Electric
  • Catalog Number: Q4L3400
  • Series: Q4
  • Frame Type: Q4 Frame
  • Amperage: 400A
  • Poles: 3
  • Voltage: 240VAC
  • Frequency: 50/60 Hz
  • Trip Technology: Thermal Magnetic
  • Trip Functions: LI (Long-Time & Instantaneous)
  • Mounting Style: Unit Mount
  • Connection Type: Line & Load Lugs
  • Interrupting Rating:
    • 25kA @ 240VAC
  • Operating Temperature Rating: 40°C
  • Certifications:
    • UL 489 Listed
    • CSA Certified
    • IEC Certified

Product Data

  • Brand: Square D
  • Manufacturer: Schneider Electric
  • Model: Q4L3400
  • Type: Molded Case Circuit Breaker
  • Frame Size: Q4 Frame
  • Protection Type: Thermal Magnetic
  • Mounting: Unit Mount
  • Connection: Line & Load Lugs
  • Condition: New / Reconditioned
  • Phase: 3 Phase
  • UPC: 785901649281
  • GTIN: 00785901649281
  • Dimensions:
    • Height: 11.0"
    • Width: 6.0"
    • Depth: 5.84"
  • Weight: Approximately 17 lbs
  • Country of Manufacture: Mexico

Compatible Equipment

  • Square D PowerPact Q4 Distribution Equipment
  • Commercial Switchboards
  • Industrial Distribution Panels
  • OEM Control Equipment Panels

Interrupting Rating

  • 25kA @ 240VAC
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: 78504887234

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 29 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
DAVID L.
Fort Morgan, US
★★★★★ 5
Nice shoes!
Size: 11, Color: Black Full Grain
I bought them in black and I like them so much I will be buying the brown soon. They fit true to size and are comfortable and stylish. I like the clean simplicity. They're basically a dressy sneaker which is perfect for my job's 'dress code'. Yet they're stylish enough to be worn weekends or a night out. They seemed just a touch stiff out of the box but IMO that's completely normal and fine - after just a couple days of wearing them they are breaking in nicely. No complaints on that. They seem to be of very high quality and I'm very happy with them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
B
Verified Purchase
Bamaphan
Draper, US
★★★★★ 5
Good shoes!!!!!
Size: 10, Color: Tan Full Grain
They are comfortable, they fit, great style. I bought blue, brown and black shoes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 18, 2025
S
Verified Purchase
Shawn
Charlottesville, US
★★★★★ 5
Great Product
Size: 13, Color: Black Full Grain
2nd Johnston & Murphy comfortable and stylish.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2025
M
Verified Purchase
Margaret
Los Angeles, US
★★★★★ 5
Great shoes for business casual, corporate travel
Size: 8.5, Color: White Full Grain
Fit true to size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2025
J
Verified Purchase
Jocko
Charlottesville, US
★★★★★ 5
Very Comfortable Shoes
Size: 11, Color: Black Full Grain
Were purchased as a gift and the wearer says they are the most comfortable shoes he has
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025

recommand products