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Circuit Breaker

Square D | Q4L2400 | Circuit Breaker | 400A | 2-Pole | 240V

★★★★★
Part Number Q4L2400
Amperes 400
Poles 2
Voltage 240
Product Type Circuit Breaker
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Manufacturer :Square D
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $6,160.00
Sale price $6,160.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

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Secure transaction
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FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
Allen-Bradley 140M-C2E-C16 - Standard Magnetic Trip Breaker Motor Protection - Standard Magnetic Trip Breaker Motor Protection

Square D | Q4L2400 | Circuit Breaker | 400A | 2-Pole | 240V

Regular price $6,160.00
Sale price $6,160.00 Regular price
Unit price
Product description
Shipping

Square D Q4L2400 Circuit Breaker — a robust 400A, 2-pole device engineered for 240V protection. Designed to support maintenance, retrofit, and replacement projects, this breaker is built to slot into compatible Square D panels where a precise part reference ensures proper fit and reliable performance.

Key specifications at a glance: 400A rating, 2-pole configuration, 240V operating voltage. When you're updating an electrical system, choosing the exact part number Q4L2400 is the best reference for compatibility, ensuring the breaker fits the enclosure, matches the panel's trip characteristics, and interfaces cleanly with your wiring layout.

What makes this breaker stand out

  • High-current protection designed for main feeders in 240V panels.
  • Simple, reliable replacement for legacy Square D installations when you need a 400A, 2-pole unit without changing other components.
  • Clear compatibility reference the part number Q4L2400 is your best guide to fit and ratings—verify before ordering.
  • Maintenance-friendly supports routine service and retrofits, helping minimize downtime and disruption.

Ideal use scenarios

  • Maintenance and replacement in existing Square D panels requiring a 400A, 2-pole, 240V device.
  • Retrofits where upgrading feeder protection or expanding capacity calls for a robust 400A breaker.
  • New installations that align with Square D specifications and the Q4L2400 reference to ensure seamless operation.

Installation and compatibility tips

Before ordering, confirm fit and ratings against the panel labeling and schematics. Rely on the Q4L2400 part number as the most reliable compatibility reference to ensure proper mounting and wiring. Always follow proper safety procedures when working with electrical panels to protect yourself and the system.

Specifications at a glance

  • Amperage: 400A
  • Poles: 2-Pole
  • Voltage: 240V
  • Part number: Q4L2400
  • Brand: Square D

With the Square D Q4L2400, you get a trusted component that aligns with your panel’s protection strategy and electrical design. It’s a practical, dependable choice for serious protection needs—delivering reliable performance where it matters most.

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What Our Customers Say

4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

Verified

Exactly what we needed for a shutdown replacement. No surprises.

Plant · Shutdown

Verified

Good communication and clear updates while the order was processed.

Project · Coordination

Verified

Looks and feels like a proper industrial-grade part. Works as expected.

Service · Field install

Fast industrial sourcing support

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Email us at sales@ampstate.com for pricing, availability, alternates, and project support.

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