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NEF421070 - 70Amp Circuit Breaker

  • 70 Amp
  • 14k @ 480VAC; 18k @ 240VAC
  • 2 Pole
Circuit BreakersSKU: NEF421070 [R]

Purchase Options: Refurbished

NEF421070 - 70Amp Circuit Breaker Description

NEF421070 - 70Amp Circuit Breaker

The NEF421070 circuit breaker is a 2-pole, 70 amp molded case breaker designed to protect electrical systems from overloads and short circuits in commercial and industrial settings. If you’re working with equipment that demands dependable 70A protection, this breaker delivers steady, consistent performance. Built on the NEF frame platform and designed for bolt-on installation, it creates a solid, secure connection inside your panelboard or distribution equipment. With thermal magnetic trip functionality, it reacts properly to both long-term overloads and sudden fault conditions, helping prevent damage to wiring and connected equipment.

Key Features and Benefits

  • 70 Amp, 2-Pole Design: Protects dual-phase circuits requiring up to 70 amps of overcurrent protection.
  • Thermal Magnetic Trip Mechanism: Responds to overloads through thermal action and instantly trips during short circuits using magnetic protection.
  • Strong Interrupting Ratings: Rated for 14kA at 480VAC and 18kA at 240VAC, making it suitable for demanding electrical environments.
  • Molded Case Housing: Built with durable materials that support long service life under normal operating conditions.
  • Bolt-On Mounting Style: Provides a firm, reliable connection and helps reduce the chance of loose terminations over time.

Technical Specifications

  • Model: NEF421070
  • Poles: 2
  • Amperage: 70A
  • Voltage Rating: Up to 480VAC
  • Interrupting Capacity: 14kA @ 480VAC; 18kA @ 240VAC
  • Frame Type: NEF
  • Dimensions: 2.75" W x 6.19" L x 3.38" D
  • Approximate Weight: 4.5 lbs

Material Compliance and Certifications

  • The NEF421070 circuit breaker is manufactured to meet established electrical industry safety standards. It is built using quality components that align with applicable electrical code requirements for commercial and industrial installations. This helps ensure safe integration into properly designed and maintained electrical systems.

Where It Works Best

  • This breaker is commonly used in commercial buildings, industrial facilities, and other applications where 2-pole, 70 amp protection is required. It’s a practical solution for maintenance replacements, panel upgrades, or repairs involving NEF frame equipment. Electricians and maintenance teams often choose this model when dependable branch circuit protection and proper fault interruption are essential to keeping operations running safely.

Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.

Specifications

  • Width:2.75
  • Height:6.19
  • Depth:3.38
  • Poles:2
  • Amperes:70
  • A.I.C. Rating & Volts:14k @ 480VAC; 18k @ 240VAC
  • Type:NEF
  • Approx Dimensions:2.75"W x 6.19"L x 3.38"D
  • Additional Notes:Bolt-On, Thermal Magnetic, Molded Case Circuit Breaker. Also known as NEF423070, NEF425070, & NEF427070.

Returns are easy

You may return unused items within 30 days of delivery for a full refund.

FREE shipping on breaker orders over $100 and all other items with orders over $500.

CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

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In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

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