Eaton Cutler Hammer KG3300 300A 3-Pole Generator Molded Case Circuit Breaker – Bolt-On Mount – 600VAC

The Eaton Cutler-Hammer KG3300 is a K-frame molded case generator circuit breaker specifically designed for generator protection and power distribution applications. Equipped with a thermal-magnetic interchangeable trip unit, this breaker provides dependable overload and short-circuit protection while allowing the trip unit to be replaced or adjusted as system requirements change. Rated at 300 amperes at 40°C, the KG3300 features a 500–1000 trip range, making it suitable for generator circuits where higher magnetic trip settings are required to accommodate starting currents. Its bolt-on mounting configuration ensures secure installation, and standard line and load terminals provide reliable and efficient electrical connections.

Product Specifications

• Brand: Eaton / Cutler-Hammer
• Model: KG3300
• Breaker Type: Molded Case Generator Circuit Breaker
• Frame Style: KG (K-Frame Generator Series)
• Rated Current: 300 Ampere
• Number of Poles: 3 Pole
• Trip Unit Type: Thermal Magnetic Interchangeable Trip Unit
• Trip Range: 500–1000
• Mounting Type: Bolt-On Connection
• Standard Lug Type: Line and Load End Terminals Standard
• Warranty: One Year Manufacturer Warranty

Technical Specifications

• Frame Type: K-Frame
• Trip Adjustment Range: 500–1000 Ampere Magnetic Trip Range
• Operating Temperature Reference: 40°C
• Protection Type: Overload and Short Circuit Protection
• Breaker Construction: Molded insulated case for durability and safety
• Application Type: Generator protection and industrial power distribution systems

Voltage and Ratings

• Maximum Voltage: 600 VAC
• Interrupting Rating: 18 kA @ 240 VAC
• Interrupting Rating: 14 kA @ 480 VAC
• Interrupting Rating: 10 kA @ 600 VAC
• Frequency: 50/60 Hz

Product Data

• Manufacturer: Eaton / Cutler-Hammer
• Product Series: KG Generator Circuit Breaker Series
• Model Number: KG3300
• Current Rating: 300A
• Number of Poles: 3
• Connection Type: Bolt-On
• Terminal Type: Line and Load Terminals Included
• Application: Generator protection systems, switchboards, and industrial power distribution equipment

Important Note

The product image typically represents a base model for identification purposes only, and the final configuration may vary depending on installed accessories or optional components. If accessories are ordered together with the breaker, they can be installed to match your specific configuration requirements at no additional cost. Please include the necessary configuration details in the order comment section during checkout to ensure proper assembly prior to shipment.

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You may return items within 10 days of delivery for a refund.

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