DK3350Y - 350Amp Circuit Breaker
- 350 Amp
- 65k @ 240VAC
- 3 Pole
Purchase Options: New In Box
DK3350Y - 350Amp Circuit Breaker Description
DK3350Y - 350Amp Circuit Breaker
The Eaton DK3350Y molded case circuit breaker is designed for electrical professionals who need a dependable 350 Amp, 3-pole breaker for commercial and industrial power distribution systems. When keeping existing equipment operating safely and efficiently is a priority, finding a breaker that matches the original electrical specifications is essential. The DK3350Y helps meet that need with a combination of proven Series C K-Frame construction, a T186 thermal magnetic trip unit, and ratings suited for demanding applications.
Whether you're replacing a failed breaker during maintenance, refurbishing electrical equipment, or supporting the ongoing operation of an existing distribution system, the DK3350Y delivers the form, fit, and function required for compatible installations. With a 65kA interrupting capacity at 240 VAC and a 350 Amp rating, it is commonly used in switchboards, panelboards, industrial facilities, manufacturing environments, and commercial buildings where reliable circuit protection is critical.
Built to last and UL Listed, this Eaton Series C circuit breaker helps protect electrical systems from overloads and short circuits while maintaining the characteristics required by the original design. For contractors, facility managers, maintenance teams, and electrical professionals, the DK3350Y remains a practical choice when maintaining existing power distribution infrastructure and preserving system continuity.
Key Features and Benefits
- 350 Amp continuous current rating
- Three-pole molded case circuit breaker
- Eaton Series C K-Frame construction
- Complete breaker assembly
- T186 thermal magnetic trip unit
- Includes line-side terminals
- 65kAIC interrupting capacity at 240 VAC
- 10kAIC interrupting capacity at 250 VDC
- Rated for 240 VAC and 250 VDC applications within specified limits
- Designed for operation in 50/60 Hz electrical systems
- Helps protect circuits from overloads and short circuits
- Commonly used in commercial and industrial power distribution systems
Technical Specifications
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Catalog Number: DK3350Y
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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 Side Terminals
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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: 786679044605
Material Compliance and Certifications
- UL Listed: Manufactured as part of Eaton's 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 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 plants
- Institutional and educational campuses
- Municipal and government facilities
- Feeder circuit protection applications
- Switchboards and switchgear assemblies
- Panelboards requiring compatible K-Frame breakers
- Electrical distribution equipment maintenance projects
- Facility modernization and refurbishment programs
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-Side 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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Same Day Shipping
We strive to ship out your items within one business day.
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).