SKU: 43656990221

Eaton Cutler Hammer MDLB3400 400A 3 Poles Molded Case Circuit Breaker – Bolt On – 600VAC

Sale price$1349.55 Regular price$1499.50
Save 10%

Pay in installments of $374.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Eaton Cutler Hammer MDLB3400 400A 3 Poles Molded Case Circuit Breaker – Bolt On – 600VACThe Eaton Cutler Hammer MDLB3400 molded case circuit breaker is designed to deliver dependable circuit protection for industrial and commercial electrical distribution systems. Featuring the MDLB frame style and a thermal magnetic non interchangeable trip unit, this breaker provides reliable protection against overload and short circuit conditions. With a continuous current rating of 400 amperes at 40C and a 3 pole configuration, it supports AC

The Eaton Cutler-Hammer MDLB3400 molded case circuit breaker is designed to deliver dependable circuit protection for industrial and commercial electrical distribution systems. Featuring the MDLB frame style and a thermal magnetic non-interchangeable trip unit, this breaker provides reliable protection against overload and short-circuit conditions. With a continuous current rating of 400 amperes at 40°C and a 3-pole configuration, it supports AC voltages up to 600VAC and DC applications up to 250VDC. Its bolt-on mounting design ensures secure installation in compatible panelboards and switchgear, while the durable molded case construction ensures long-lasting performance in demanding environments.

Product Specifications

  • Brand: Eaton / Cutler-Hammer
  • Model: MDLB3400
  • Breaker Type: Molded Case Circuit Breaker
  • Frame Type: MDLB (M Frame Style)
  • Trip Unit Type: Thermal Magnetic Non-Interchangeable Trip
  • Amperage Rating: 400 Ampere
  • Number of Poles: 3 Pole
  • Mounting Type: Bolt-On
  • Frequency: 50/60 Hz
  • Standard Lug Type: Not Included / Configurable

Technical Specifications

  • Thermal magnetic trip mechanism for accurate overload and short-circuit protection
  • Non-interchangeable trip unit with fixed protection settings
  • Durable molded case housing for industrial and commercial environments
  • High interrupting capacity for enhanced fault protection
  • Suitable for both AC and limited DC applications
  • Designed for dependable performance in heavy-duty electrical systems

Voltage and Ratings

  • Maximum AC Voltage: 600 VAC
  • Maximum DC Voltage: 250 VDC
  • Interrupting Capacity:
    • 65 kA @ 240 VAC
    • 50 kA @ 480 VAC
    • 25 kA @ 600 VAC
    • 22 kA @ 250 VDC
  • Trip Setting: 5–10 times the continuous ampere rating

Product Data

  • Manufacturer: Eaton / Cutler-Hammer
  • Product Series: MDLB Frame Series
  • Configuration: Molded Case Circuit Breaker
  • Connection Type: Bolt-On
  • Warranty: 1 Year
  • Application: Industrial power distribution, panelboard protection, and heavy-duty electrical circuit protection

Important Note

The product image shown represents a base model and is intended for identification purposes only. Accessories ordered with the breaker can be installed to meet your specific configuration requirements at no additional cost. Please include all required configuration details in the order comment box during checkout to ensure accurate assembly and delivery.

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: 43656990221

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 10 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Cpf from SD
Bozeman, US
★★★★★ 5
No more washing pozole/menudo bowls for me
Style: 34 Ounces, Size: 34 Count
Very sturdy for a paper plate. Used these for pozole at a party and saved me the hassle of washing plates. Good size, bigger than you think. When serving it does get hot so use something underneath so you don’t get burned.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
N
Verified Purchase
NancyPS
Phoenix, US
★★★★★ 5
Extra large paper bowls are sturdy, affordable, and make clean up a breeze.
Style: 34 Ounces, Size: 34 Count
I like the convenience of paper plates and these large 34 oz. bowls are perfect for microwave cooking. They are deep enough to handle soup, pasta, stuffing and vegetable sides with no problems and without any leaking, and are a good value for the price. They look stylish and make clean up less of a chore. You can't go wrong with Dixie paper products. They're sturdy, fun, and last through the meal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 30, 2026
P
Verified Purchase
PAD
Massapequa, US
★★★★★ 5
Great product well made
Style: 34 Ounces, Size: 34 Count
Great product great for salads they are sturdy and well made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
P
Verified Purchase
Partycrtns
Fort Morgan, US
★★★★★ 5
Good size for a serving bowl.
Style: 34 Ounces, Size: 34 Count
Nice large bowl. Can be used as a serving bowl. Nice design and sturdy. I have subscribed to receive a pack once a month.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
E
Verified Purchase
Eric Marquardt
Fort Morgan, US
★★★★★ 4
Big
Style: 34 Ounces, Size: 34 Count
Big, and really sturdy. I can put any food in this and trust it will uphold.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026

recommand products