SKU: 33056863751

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

Sale price$674.55 Regular price$749.50
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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: 33056863751

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Randall P
Houston, US
★★★★★ 4
Very well built.
Well build. Very solid for the price. I used #1 AWG cable. I don't like the pinch bolt connection. It tries to drill through the cable, and spreads the strands. Only about 2/3rds are pinched under the knurled bolt tip. I'll keep an eye on it, and if the connection heats up, I'll pull apart, straighten the strands, and tin the ends with solder so they don't crush much. See how that works. A concave, half circle piece under the pinch bolt would be better IMO. That would keep strands together as they crushed down.
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Reviewed in the United States on December 6, 2024
M
Verified Purchase
Meeikal
Grantham, US
★★★★★ 5
Solid choice for fuse holder
Size: 300A Fuse Holder
It’s awesome, solid connections for running 0 gauge wire. No issues after using for months! Might upgrade to using 0 gauge wire ferrules to use with this but for now everything is working well.
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Reviewed in the United States on January 14, 2026
D
Verified Purchase
Dana
Lexington, US
★★★★★ 5
Would buy again
Size: 300A Fuse Holder
Works as described
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
W
Verified Purchase
Will Peppers jr
Waukegan, US
★★★★★ 5
I can wire my 0gage wre finally
Size: 300A Fuse Holder
The speed of service and delivery fused at different Amps voltage to purchase appearance is always a great addition and skar audio is always a head of the game I love skar audio I have been running their RP series amps I have all of them except the 4500.1 I bought this for my 07 Wolfsburg jetta with a 15 dual 2ohm down to 1ohm with the RP 3500.1 and it slumps and hits so low the skar box foe my single 15evl series..is tuned to 30htz..n when it hits that level and lower man u know it ..o call it the 23htz (23hurter)..explosive always excellent quality and functionality thanks 😊
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Reviewed in the United States on January 28, 2025
K
Verified Purchase
Kraig Cash
Dallas, US
★★★★★ 5
Top notch
Size: 300A Fuse Holder
Very good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026

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