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NB3700 - 700 Amp Circuit Breaker

  • 700 Amp
  • 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  • 3 Pole
Circuit BreakersSKU: NB3700 [NS]

Purchase Options: New In Box

NB3700 - 700 Amp Circuit Breaker Description

NB3700 - 700 Amp Circuit Breaker

The NB3700 is a 700-amp, 3-pole thermal-magnetic circuit breaker for electrical equipment that requires a compatible NB-type breaker. It has an interchangeable trip unit, a 40°C rating, and comes with load-side terminals. Interrupting ratings are 22kA at 600VAC, 30kA at 480VAC, and 42kA at 240VAC. The breaker measures 16 inches high, 8.25 inches wide, and 5.5 inches deep. If you're replacing an existing NB3700, check the part number, electrical ratings, and physical dimensions. Matching the amperage, poles, voltage, AIC rating, and trip configuration helps ensure the breaker matches the equipment. The NB3700 is built to last when used within its specified ratings and properly installed, maintained, and protected.

Key Features and Benefits

  • 700 amp rating
  • 3-pole configuration
  • Thermal magnetic protection
  • Interchangeable trip unit
  • 40°C rated
  • 22kA AIC at 600VAC
  • 30kA AIC at 480VAC
  • 42kA AIC at 240VAC
  • Load-side terminals included
  • Designed for equipment requiring a compatible NB-type breaker

Technical Specifications

  • Part Number: NB3700
  • Type: NB
  • Amperage: 700A
  • Poles: 3
  • Breaker Type: Thermal Magnetic
  • Trip Unit: Interchangeable
  • Temperature Rating: 40°C
  • AIC Rating:
    • 22kA @ 600VAC
    • 30kA @ 480VAC
    • 42kA @ 240VAC
  • Height: 16.0 in.
  • Width: 8.25 in.
  • Depth: 5.5 in.
  • Load-Side Terminals: Included

Material Compliance and Certifications

  • Specific certification numbers and material compliance information were not provided in the available specifications. Check the breaker label and applicable documentation if your installation requires a particular certification or compliance standard.

Where It Works Best

  • The NB3700 is intended for existing electrical distribution equipment that calls for a compatible 700A, 3-pole NB-type circuit breaker. It's a practical choice for maintenance and replacement work where the original form, fit, ratings, and electrical function must match.
  • Before installation, verify the part number, dimensions, amperage, number of poles, voltage, AIC rating, and trip configuration against the existing equipment.

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.

Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.

Specifications

  • Width:8.25
  • Height:16.0
  • Depth:5.5
  • Poles:3
  • Amperes:700
  • A.I.C. Rating & Volts:22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  • Type:NB
  • Approx Dimensions:8.25"W x 16.00"L x 5.50"D
  • Additional Notes:40°C Rated, Thermal Magnetic Circuit Breaker With Interchangeable Trip Unit. This item includes load-side terminals. - discontinued by the manufacturer

Returns are easy

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

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

Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.

If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.

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).

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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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