NEF431070 - 70Amp Circuit Breaker

NEF431070 - 70Amp Circuit Breaker

The NEF431070 70 Amp circuit breaker is a 3-pole molded case breaker designed for dependable protection in commercial and industrial electrical systems. Built with thermal magnetic trip technology, it helps protect equipment from overloads and short circuits—two of the most common causes of electrical failure. The bolt-on design creates a tight, secure connection inside compatible panelboards, which helps reduce movement and maintain consistent contact over time. For maintenance teams replacing an existing NEF frame breaker or keeping critical systems up and running, this 70A breaker delivers steady, predictable performance where it counts.

Key Features and Benefits

• Thermal Magnetic Trip Unit: Provides dual protection against overloads and instantaneous short circuits.
• 70 Amp Rating: Designed for circuits requiring reliable 70A protection in three-phase systems.
• 3-Pole Configuration: Suitable for commercial and industrial power distribution applications.
• Bolt-On Mounting: Secures firmly to the panelboard for added stability and safety.
• Strong Interrupting Capacity: Rated 14k AIC at 480VAC and 18k AIC at 240VAC to handle fault conditions with confidence.

Technical Specifications

• Part Number: NEF431070
  
• Amperage: 70 Amps
  
• Poles: 3
  
• Voltage Rating: Up to 480VAC
  
• Interrupting Rating:
  • 14k AIC @ 480VAC
  • 18k AIC @ 240VAC
• Frame Type: NEF
  
• Type: Molded Case Circuit Breaker, Thermal Magnetic
  
• Dimensions:
  • Width: 4.13"
  • Length: 6.19"
  • Depth: 3.38"
• Weight: 6 lbs
  

Material Compliance and Certifications

• Industry Standards: The NEF431070 is manufactured in accordance with recognized industry standards for molded case circuit breakers. It is constructed from quality materials intended to meet applicable safety and performance requirements when installed properly and used within its rated specifications.

Where It Works Best

• This 70 amp 3 pole breaker is commonly used in commercial buildings, industrial facilities, and other three-phase electrical systems that require dependable circuit protection. It’s a practical choice for maintenance replacements, system servicing, or restoring panelboard functionality without redesigning the existing setup. When consistent protection and straightforward installation matter, the NEF431070 is a solid fit.