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KA3070 - 70Amp Circuit Breaker

  • 70 Amp
  • 22k @ 600VAC; 22k @ 480VAC; 25k @ 240VAC
  • 3 Pole
Circuit BreakersSKU: KA3070 [NS]

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KA3070 - 70Amp Circuit Breaker Description

KA3070 - 70Amp Circuit Breaker

When you're trying to replace a breaker that has been in service for years, KA3070 on the label is a good starting point—but it isn't the only detail worth checking. This 70A, three-pole Type KA circuit breaker uses a thermal-magnetic design with an interchangeable trip unit and carries a 40°C rating. The KA3070 is built to last, with the focus here remaining where it should be: finding the correct form, fit, ratings, and function for compatible existing or legacy equipment.

Key Features and Benefits

  • 70A, three-pole configuration provides two key identifiers for checking an existing installation.
  • The KA designation helps confirm compatibility with equipment that calls for this specific breaker type.
  • The thermal-magnetic trip design is well-suited to applications requiring this protection configuration.
  • An interchangeable trip unit is an important compatibility detail when identifying the correct replacement.
  • 40°C rated according to the supplied specifications.
  • Load-side terminals are included, making the terminal arrangement clear before installation.

Technical Specifications

  • Part Number: KA3070
  • Product Type: Circuit Breaker
  • Type: KA
  • Amperage: 70A
  • Poles: 3
  • Trip Design: Thermal-Magnetic
  • Trip Unit: Interchangeable
  • Temperature Rating: 40°C
  • A.I.C. at 240VAC: 25 kA
  • A.I.C. at 480VAC: 22 kA
  • A.I.C. at 600VAC: 22 kA
  • Load-Side Terminals: Included
  • Width: 5.50 in.
  • Height / Length: 10.13 in.
  • Depth: 3.94 in.
  • Overall Dimensions: 5.50" W × 10.13" L × 3.94 "D
  • Approximate Ship Weight: 16.00 lb.

Material Compliance and Certifications

No specific UL, CSA, IEC, RoHS, REACH, or other material-compliance certifications were provided with the available KA3070 specifications. These approvals should not be assumed. When a particular certification is required for the installation, verify it against the applicable product documentation before use.

Where It Works Best

The KA3070 70A circuit breaker is suited to compatible existing and legacy electrical equipment that calls for a three-pole Type KA breaker with a thermal-magnetic, interchangeable trip unit. It is particularly useful when selecting a replacement depends on matching an established combination of amperage, pole count, interrupting rating, physical dimensions, and terminal arrangement.


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®, Edison®, Edison Fuse®, GTE Sylvania®, 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:5.5
  • Height:10.13
  • Depth:3.94
  • Poles:3
  • Amperes:70
  • A.I.C. Rating & Volts:22k @ 600VAC; 22k @ 480VAC; 25k @ 240VAC
  • Type:KA
  • Approx Dimensions:5.50"W x 10.13"L x 3.94"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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