SKU: 49179981912

Eaton Cutler Hammer Mining E2N312MWU66 1200A 3P Mining MCCB – Bolt On – 600VAC

Sale price$4859.55 Regular price$5399.50
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Description

Eaton Cutler Hammer Mining E2N312MWU66 1200A 3P Mining MCCB – Bolt On – 600VACThe Eaton E2N312MWU66 is a high performance molded case mining circuit breaker (MCCB) designed for demanding industrial and mining applications. Built on the rugged E2N frame, it features a non interchangeable magnetic only trip unit that provides fast and reliable instantaneous protection against short circuits. With a 1200 ampere rating and high interrupting capacity, this breaker is ideal for critical power distribution systems. The integrated U66

The Eaton E2N312MWU66 is a high-performance molded case mining circuit breaker (MCCB) designed for demanding industrial and mining applications. Built on the rugged E2N frame, it features a non-interchangeable magnetic-only trip unit that provides fast and reliable instantaneous protection against short circuits. With a 1200 ampere rating and high interrupting capacity, this breaker is ideal for critical power distribution systems. The integrated U66 under-voltage release (UVR) with LED enhances safety and monitoring by automatically disconnecting the circuit during low voltage conditions.

Product Specifications

  • Brand: Eaton / Cutler Hammer
  • Model: E2N312MWU66
  • Rated Current: 1200A
  • Number of Poles: 3 Pole
  • Breaker Type: Molded Case Mining Circuit Breaker (MCCB)
  • Trip Unit: Magnetic-Only (Non-Interchangeable)
  • Mounting Type: Bolt-On
  • Frequency: 50/60 Hz
  • Frame Type: N
  • Configuration: U66 UVR with LED

Technical Specifications

  • Trip Setting: 1250–5000
  • Trip Function: Instantaneous (Magnetic-Only Protection)
  • Under Voltage Release (U66):
    • 120 VAC UVR with LED Indicator
    • Left Pole Mounted
    • Rear Exit
  • Connection Type: Bolt-On
  • Designed for heavy-duty mining and industrial environments

Voltage and Ratings

  • Rated Operational Voltage: 600VAC
  • Interrupting Capacity:
    • 65 kA @ 240VAC
    • 50 kA @ 480VAC
    • 25 kA @ 600VAC

Product Data

  • Application: Mining and industrial power distribution
  • Standard Compliance: Industry-standard MCCB requirements
  • Warranty: 1 Year
  • Lug Type: Standard Lug
  • Installation: Panel-mounted, bolt-on connection

Important Note

This breaker uses a magnetic-only trip unit and does not provide thermal overload protection; ensure appropriate external overload protection is incorporated in your system. The unit includes a factory-installed under-voltage release (UVR) with LED—verify compatibility with system voltage before installation. Product images are for identification purposes only and may not reflect the exact configuration. Accessories ordered with the breaker can be installed prior to shipment at no additional cost—please provide complete configuration details during checkout. Installation must be performed by qualified personnel in accordance with all applicable electrical codes and safety standards.

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: 49179981912

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Whiting, US
★★★★★ 5
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Size: Large Pack
These are good, not chunky looking and they’re very sturdy and dark and pretty
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Reviewed in the United States on May 23, 2026
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HEB
West Palm Beach, US
★★★★★ 5
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Very happy with this purchase! The quality exceeded my expectations and it works exactly as described. It arrived quickly, was packaged well, and feels like a great value for the price. I would definitely recommend this product and would purchase again.
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Reviewed in the United States on May 29, 2026
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LAURA SMITH
Boise, US
★★★★★ 4
Very sturdy
Size: Large Pack
Great product
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Reviewed in the United States on April 2, 2026
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Slate Creek
Omaha, US
★★★★★ 5
Worth it
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Great buy for the price. These are the good plastic silverware. Durable and right sized
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Reviewed in the United States on May 3, 2026
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Jennifer OKelley
Massapequa, US
★★★★★ 5
Love the pans with lids!
Size: 25 Pack w/ Lids
Great quality. So convenient to keep on hand. The lids allow an easy and secure seal.
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Reviewed in the United States on May 18, 2026

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