SKU: 69906479938

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: 69906479938

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4.5 ★★★★★
Based on 9 reviews
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Verified Purchase
William Mayfield
Lake Worth, US
★★★★★ 4
Works good but have only tried it on fine setting.
Works good but should have an overall cap as seasoning gathers around the inside.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
E
Verified Purchase
Ella
San Leandro, US
★★★★★ 5
Best S&P grinder set that I have ever used!
Cute chefs cap! Love that they are glass containers with ceramic grinders. Grinds salt granules and pepper corns very finely in both directions. Excellent purchase! Great value!
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Reviewed in the United States on March 9, 2026
E
Verified Purchase
Elizabeth
Lowell, US
★★★★★ 5
Came quickly as described!
The Grinders are very well made. I keep them right next to the stove, so they are used daily. The came quickly. Very easy to fill... You wont be disappointed !
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Reviewed in the United States on April 20, 2026
A
Verified Purchase
Ann Henson
Whiting, US
★★★★★ 5
Small and perfect
This salt and pepper grinder set are perfect for what I wanted. They are small in size, easy to fill and grind the S&P perfectly.
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Reviewed in the United States on February 28, 2026
A
Verified Purchase
Anonymous
Chelsea, US
★★★★★ 5
Great Value!
Color: Tall Set - Black White
Better than anticipated. These are sturdy and work very well. They came with a little funnel to fill, but easy enough without it. They are attractive, I keep on top my stove as I have room. Grind well.
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Reviewed in the United States on December 31, 2025

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