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DK2300 - 300AMP Circuit Breaker

  • 300 Amp
  • 65k @ 240VAC
  • 2 Pole
Circuit BreakersSKU: DK2300

Purchase Options: New In Box

DK2300 - 300AMP Circuit Breaker Description

DK2300 - 300AMP Circuit Breaker

The Eaton DK2300 is a 300 Amp, 2-pole molded case circuit breaker designed for use in Eaton Series C K-Frame electrical systems. Whether you're replacing a failed breaker, performing scheduled maintenance, or keeping critical electrical equipment in service, the DK2300 provides the ratings and configuration needed to match existing installations without changing panel layouts or system design.

In many commercial and industrial facilities, electrical systems remain in operation for decades. When a breaker needs replacement, finding the correct frame size, amperage rating, and interrupting capacity is often more important than making changes to the system. The DK2300 is frequently selected for exactly that reason—it helps maintain the original electrical setup while restoring circuit protection to the affected equipment.

Inside the breaker is Eaton's T186 thermal-magnetic trip mechanism, which responds to both prolonged overload conditions and high-level short circuits. This combination helps protect conductors and connected equipment from damage while supporting safe system operation under normal working conditions.

Like many Eaton molded case breakers that remain in service throughout commercial and industrial facilities, the DK2300 was built to last. For maintenance departments, electrical contractors, and facility managers, it is often the practical choice when maintaining compatibility with existing Eaton equipment is the primary goal.

Key Features and Benefits

  • 300 Amp molded case circuit breaker
  • Two-pole configuration for simultaneous disconnecting of both poles
  • Eaton Series C design for compatible electrical systems
  • Complete breaker assembly ready for installation
  • Thermal-magnetic protection using T186 trip unit
  • Rated for 240 Vac and 250 Vdc applications
  • 65 kAIC interrupting rating at 240 Vac
  • 10 kAIC interrupting rating at 250 Vdc
  • K-Frame construction for Series C applications
  • Line and load terminal connections
  • Aluminum terminal material
  • Commonly used for replacement and maintenance projects
  • Helps maintain original system configuration and panel compatibility
  • Built for long service life in commercial and industrial environments

Technical Specifications

  • Catalog Number: DK2300
  • Manufacturer: Eaton
  • Series: Series C
  • Product Type: Molded Case Circuit Breaker
  • Circuit Breaker Type: DK
  • Type: Complete Breaker
  • Frame: K-Frame
  • Amperage Rating: 300 Amps
  • Voltage Rating: 240 Vac, 250 Vdc
  • Number of Poles: 2
  • Trip Type: T186 Thermal Magnetic
  • Frequency Rating: 50/60 Hz
  • Interrupting Rating: 65 kAIC at 240 Vac
  • Interrupting Rating (DC): 10 kAIC at 250 Vdc
  • Terminals: Line and Load
  • Terminal Material: Aluminum
  • Dimensions: 4.1 in D x 5.5 in H x 5.5 in W
  • Weight: 1 lb
  • UPC: 786679044056

Material Compliance and Certifications

  • UL Listed: The DK2300 is UL Listed and manufactured to Eaton specifications for molded case circuit breakers used in commercial and industrial electrical distribution systems.
  • Application Requirements: It is intended for installation, replacement, and maintenance applications where matching the original breaker's form, fit, and electrical ratings is important.
  • Installation Guidance: Installation should be performed by qualified electrical personnel in accordance with all applicable electrical codes, safety practices, and manufacturer recommendations.

Where It Works Best

  • Eaton Series C K-Frame electrical systems
  • Commercial electrical distribution equipment
  • Industrial power distribution applications
  • Feeder and distribution circuits requiring 300 Amp protection
  • Existing installations operating at 240 Vac or 250 Vdc
  • Replacement of installed DK-series circuit breakers
  • Preventive maintenance and repair projects
  • Facilities seeking to maintain original panel and equipment configurations
  • Electrical systems requiring two-pole overcurrent protection
  • Service and retrofit work where matching breaker ratings is critical

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:5.5
  • Height:10.13
  • Depth:4.1
  • Poles:2
  • Amperes:300
  • A.I.C. Rating & Volts:65k @ 240VAC
  • Type:DK
  • Approx Dimensions:5.50"W x 10.13"L x 4.10"D
  • Additional Notes:40°C, HACR Rated, K-Frame, Thermal Magnetic Circuit Breaker with Non-Interchangeable Trip Unit. Includes Line and Load Lugs

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.

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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.

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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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