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

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.