SKU: 47480457699

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

Sale price$1349.55 Regular price$1499.50
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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: 47480457699

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4.8 ★★★★★
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Verified Purchase
Amazon Customer
Louisville, US
★★★★★ 5
Hallelujah!
My hands were so dry and cracked until I got these babies. I didn't realize what I was getting myself into and was surprised when they were lined with some kind of silicone. Night one, I lathered my hands with whatever lotion I had laying around and went to bed. Now, these gloves are not super comfy because they're so thick, but not so bad that I won't use them. Anyway, wore them several hours and took them off in the middle of the night (they recommend at least 20-30 minutes). In the morning, my hands were baby soft. No cracks. No dryness in sight. AND it lasted all day. I did it the night after and I have not had dry hands for nearly 2 weeks! It's insane. I'm SO happy. Definitely worth it as a little treat yourself.
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Reviewed in the United States on January 13, 2023
T
Verified Purchase
Techiemom
Louisville, US
★★★★★ 5
Comfortable & Ideal
Color: 2 Pairs: Black
As a hot sleeper, I could never wear regular socks to bed, so I thought I’d try these. They have been comfortable and ideal for my needs. They’re easy to slip on and I take them off before I get out of bed. They’ve been great and my heels look WAY better after just 3 nights. Happy with the purchase!
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Reviewed in the United States on May 10, 2026
R
Verified Purchase
Rox
Phoenix, US
★★★★★ 5
Great buy for rough heels
Color: Gray
These work great on hubby's feet which are always so dry. Just have to be consistent. They fit great and are comfortable he says.
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Reviewed in the United States on May 12, 2026
J
Verified Purchase
jsnmckinn
Natrona Heights, US
★★★★★ 5
Works and good quality...will last
Color: 2 Pairs: Black
Worked overnight
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Reviewed in the United States on May 26, 2026
M
Verified Purchase
Monique Martin
Dallas, US
★★★★★ 4
Works well
Color: Gray
Makes my heels super soft in addition to applying lotion
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026

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