SKU: 53141912532

Eaton Cutler Hammer MDLB3300 300A 3 Poles Molded Case Circuit Breaker – Bolt On – 600VAC

Sale price$1259.55 Regular price$1399.50
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Description

Eaton Cutler Hammer MDLB3300 300A 3 Poles Molded Case Circuit Breaker – Bolt On – 600VACThe Eaton Cutler Hammer MDLB3300 molded case circuit breaker is designed to deliver reliable protection for industrial and commercial electrical distribution systems. Featuring the MDLB frame style and a thermal magnetic non interchangeable trip unit, this breaker provides dependable protection against overload and short circuit conditions. Rated at 300 amperes at 40C with a 3 pole configuration, it supports AC voltages up to 600VAC and DC

The Eaton Cutler-Hammer MDLB3300 molded case circuit breaker is designed to deliver reliable protection for industrial and commercial electrical distribution systems. Featuring the MDLB frame style and a thermal magnetic non-interchangeable trip unit, this breaker provides dependable protection against overload and short-circuit conditions. Rated at 300 amperes at 40°C with 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 consistent performance in demanding environments.

Product Specifications

  • Brand: Eaton / Cutler-Hammer
  • Model: MDLB3300
  • Breaker Type: Molded Case Circuit Breaker
  • Frame Type: MDLB (M Frame Style)
  • Trip Unit Type: Thermal Magnetic Non-Interchangeable Trip
  • Amperage Rating: 300 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 for fixed protection settings
  • Heavy-duty molded case construction for long service life
  • Designed for both AC and limited DC power applications
  • High interrupting capacity for reliable fault protection
  • Suitable for industrial and commercial power distribution 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 electrical distribution, panelboard protection, and heavy-duty circuit protection

Important Note

The product image shown represents a base model and is provided for identification purposes only. If accessories are purchased together with the breaker, they can be installed to meet your required configuration at no additional cost. Please include the necessary configuration details in the order comment box during checkout to ensure proper 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: 53141912532

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4.4 ★★★★★
Based on 7 reviews
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Verified Purchase
Suzanne Raif
Cuba, US
★★★★★ 1
Pretty but leather is mildewed.
I read the reviews but took a chance that the one I received would not smell mildewed. Oh my!! It stinks to high heaven!!! And it is too small for my wrist…another chance I took. Instead of returning it, I’m going to try and replicate it using the watch and dangles with ribbon and cords. It was wrapped very tightly in bubble wrap. Perhaps the leather would not have mildewed if it had been able to breathe. Boy! Does it stink!!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2025
O
Verified Purchase
Oceanmotion
Cuba, US
★★★★★ 3
Snap closure watch.
Not the best quality or materials but remember, it’s extremely inexpensive.
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Reviewed in the United States on September 8, 2025
T
The Bowtie Artist
Lexington, US
★★★★★ 5
Nice accessory for anyone to wear, goes well with any style
Durable material makes it easy to slip onto any wrist (plus, adjustable strap, so there's that too). The fact that the watch actually WORKS is an added point, considering most of these out there have the clock as a graphical enhancement rather than an actual working point to the piece. The title of the item says for girls, but whoever you are out there, wear it despite what it says. These sorts of accessories are multi-person usage. It looks cool with any outfit design, too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 26, 2023
G
Verified Purchase
Genevieve
Belleville, US
★★★★★ 4
Cute! Poor battery.
This is super super cute. I love the layered bangle look and the hanging charm and the dainty little watchface. It's very comfortable to wear. I knock it down a star because the battery it came with only lasted 3 months - I know it was an inexpensive watch, but I was disappointed with the battery life.
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Reviewed in the United States on May 23, 2024
K
Verified Purchase
Kirsten
Omaha, US
★★★★★ 3
Cute, but too small
It's cute, but kinda cheaply made, and it doesn't fit my wrists. So, I gave them to my niece. She loves them. (This one and a similar one that I bought)
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Reviewed in the United States on March 31, 2025

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