DK3350 - 350Amp Circuit Breaker
- 350 Amp
- 65k @ 240VAC
- 3 Pole
Purchase Options: New In Box
DK3350 - 350Amp Circuit Breaker Description
DK3350 - 350Amp Circuit Breaker
The Eaton DK3350 Series C molded case circuit breaker is a 350 Amp, 3-pole breaker designed for dependable overcurrent protection in commercial and industrial power distribution systems. Whether you're replacing an existing breaker during maintenance, servicing aging equipment, or keeping a critical electrical system operating as intended, the DK3350 delivers the form, fit, and function needed for compatibility with Eaton Series C K-Frame installations.
Electrical systems often remain in service for many years, making it important to find replacement components that match original specifications. The DK3350 helps simplify that process with a 350 Amp rating, T186 thermal magnetic trip unit, and a 65kAIC interrupting capacity at 240 VAC. Its three-pole design provides protection for multi-phase electrical systems commonly found in manufacturing facilities, commercial buildings, processing plants, institutional campuses, and other demanding environments.
As a complete molded case circuit breaker, the DK3350 is built to last and designed to help protect electrical equipment from overloads and short circuits. Line and load terminals allow for straightforward installation in compatible systems, while its UL Listed construction provides confidence that the breaker meets recognized safety standards.
Key Features and Benefits
- 350 Amp continuous current rating
- Three-pole molded case circuit breaker
- Eaton Series C K-Frame design
- Complete breaker assembly
- T186 thermal magnetic trip unit
- Includes line and load terminals
- 65kAIC interrupting capacity at 240 VAC
- 10kAIC interrupting capacity at 250 VDC
- Suitable for AC and DC applications within specified ratings
- Designed for 50/60 Hz electrical systems
- Helps protect circuits from overload and short-circuit conditions
- Commonly used in commercial and industrial electrical distribution systems
- Ideal for maintenance, repair, and replacement applications
- Supports compatibility with existing Eaton Series C K-Frame equipment
- Aluminum terminal construction
- Built to last for long-term service in demanding environments
Technical Specifications
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Catalog Number: DK3350
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Manufacturer: Eaton
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Product Type: Molded Case Circuit Breaker
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Series: Series C
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Circuit Breaker Type: DK
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Frame Size: K-Frame
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Breaker Configuration: Complete Breaker
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Amperage Rating: 350 Amps
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Number of Poles: 3
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Voltage Rating: 240 VAC, 250 VDC
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Trip Unit: T186 Thermal Magnetic
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Interrupting Capacity: 65kAIC @ 240 VAC
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Interrupting Capacity (DC): 10kAIC @ 250 VDC
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Frequency Rating: 50/60 Hz
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Terminal Configuration: Line and Load Terminals
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Terminal Material: Aluminum
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Length/Depth: 4.1 in.
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Height: 5.5 in.
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Width: 5.5 in.
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Weight: 11.5 lbs.
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UPC: 786679044148
Material Compliance and Certifications
- UL Listed: Manufactured as part of the Eaton Series C molded case circuit breaker family.
- Application Requirements: Designed for use in electrical distribution systems requiring properly rated overcurrent protection.
- Code Compliance: Intended for installation in accordance with applicable electrical codes and equipment specifications.
- Installation Guidance: Suitable for installation, maintenance, and servicing by qualified electrical professionals.
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Manufacturing Standards: Manufactured to meet applicable Eaton certification and compliance requirements.
Where It Works Best
- Commercial electrical distribution systems
- Industrial manufacturing facilities
- Processing and production environments
- Educational and institutional campuses
- Municipal and government facilities
- Feeder circuit protection applications
- Switchboards and switchgear installations
- Panelboards requiring compatible K-Frame breakers
- Electrical distribution equipment
- Mechanical and process equipment power systems
- Facility maintenance and repair projects
- Electrical modernization and refurbishment programs
- Existing Eaton Series C K-Frame systems requiring form, fit, and functional replacement
- Applications requiring 350 Amp, 3-pole overcurrent protection
- Systems requiring 65kA interrupting capacity at 240 VAC
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:3
- Amperes:350
- 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.
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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).