SKU: 4493159332

Eaton Cutler Hammer Mining E2NM3900WU66 900A 3 Pole Molded Case Mining Circuit Breaker – Bolt-On Mount – 1000VAC

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Description

Eaton Cutler Hammer Mining E2NM3900WU66 900A 3 Pole Molded Case Mining Circuit Breaker – Bolt-On Mount – 1000VACThe Eaton E2NM3900WU66 is a high capacity molded case mining circuit breaker engineered for demanding industrial and mining applications. Built on the durable N frame platform, it features a non interchangeable thermal magnetic trip unit that provides reliable protection against overloads and short circuits. With a 900 ampere rating and support for up to 1000VAC, this breaker ensures dependable performance in heavy duty power distribution systems. The

The Eaton E2NM3900WU66 is a high-capacity molded case mining circuit breaker engineered for demanding industrial and mining applications. Built on the durable N-frame platform, it features a non-interchangeable thermal-magnetic trip unit that provides reliable protection against overloads and short circuits. With a 900-ampere rating and support for up to 1000VAC, this breaker ensures dependable performance in heavy-duty power distribution systems. The U66 configuration includes a 120VAC undervoltage release (UVR) with LED indicator, left pole mounting, and rear exit, offering enhanced monitoring, visibility, and controlled operation.

Product Specifications

  • Frame Style: E2NM (N Frame)
  • Breaker Type: Molded Case Mining Circuit Breaker
  • Trip Unit Type: Non-Interchangeable Thermal-Magnetic
  • Amperage Rating: 900 Ampere
  • Number of Poles: 3 Pole
  • Mounting Type: Bolt-On
  • Frequency: 50/60 Hz
  • Application: Mining and heavy industrial power distribution

Technical Specifications

  • Trip Mechanism: Thermal-Magnetic
  • Trip Setting Range: 1250–5000 Amps
  • Interrupting Capacity Class: High Interrupting Capacity
  • Construction Type: Molded Case
  • Operating Temperature: Rated at 40°C
  • Special Features:
    • U66 Option: 120VAC Undervoltage Release (UVR) Installed
    • LED Indicator Included
    • Left Pole Mounted
    • Rear Exit Connection

Voltage and Ratings

  • Rated Voltage (AC): Up to 1000VAC
  • Frequency: 50/60 Hz
  • Interrupting Rating @ 480VAC: 50 kA
  • Interrupting Rating @ 600VAC: 25 kA
  • Interrupting Rating @ 1000VAC: 25 kA

Product Data

  • Model Number: E2NM3900WU66
  • Manufacturer: Eaton / Cutler Hammer
  • Series: E2NM
  • Frame Type: N Frame
  • Connection Type: Bolt-On
  • Configuration: U66 (UVR with LED, Left Pole Mounted, Rear Exit)
  • Warranty: 1 Year
  • Condition: New / Manufacturer Standard
  • Availability: Subject to stock

Important Note

The product image represents a base model for identification purposes only. Accessories ordered with the breaker, such as undervoltage release modules with LED indicators, can be factory-installed at no additional cost—ensure all configuration details are included in the order comment box. Always verify system compatibility and consult technical documentation or a qualified professional before installation.

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: 4493159332

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MzElly Chapman
Cuba, US
★★★★★ 5
Great fit!!!
Size: 14, Color: Navy Grainy Leather
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Reviewed in the United States on June 11, 2026
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Amazon Customer
Houston, US
★★★★★ 3
Que no tiene pasadores para apretar el zapato
Size: 7 Wide, Color: Black/Black
Que viene en tallas pequeñas y pensé que venían con lazos y no fue así, el resto esta bien el peso muy conveniente
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Reviewed in the United States on May 30, 2026
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Scott E.
Phoenix, US
★★★★★ 5
Comfortable and stylish
Size: 12, Color: Black
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