Eaton Cutler-Hammer KDC3400 400A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VAC

The Eaton Cutler-Hammer KDC3400 is a heavy-duty K-frame molded case circuit breaker designed for high-capacity commercial and industrial electrical distribution systems. It features a thermal-magnetic interchangeable trip unit, allowing flexible protection adjustments and easy replacement of the trip mechanism when system requirements change. Rated at 400 amperes at 40°C, the KDC3400 offers exceptional interrupting capacity, making it suitable for demanding applications where reliable fault protection is critical. The bolt-on mounting configuration ensures secure installation in panelboards and switchboards, while standard line and load terminals provide efficient wiring and dependable electrical connectivity.

Product Specifications

• Brand: Eaton / Cutler-Hammer
• Model: KDC3400
• Breaker Type: Molded Case Circuit Breaker (MCCB)
• Frame Style: KDC (K-Frame)
• Rated Current: 400 Ampere
• Number of Poles: 3 Pole
• Trip Unit Type: Thermal Magnetic Interchangeable Trip Unit
• Mounting Type: Bolt-On Connection
• Standard Lug Type: Line and Load
• Warranty: One Year Manufacturer Warranty

Technical Specifications

• Frame Type: K-Frame
• Trip Adjustment Range: Adjustable from 5× to 10× the continuous ampere rating
• Operating Temperature Reference: 40°C
• Protection Type: Overload and Short Circuit Protection
• Breaker Construction: Molded insulated case for durability and electrical safety
• Application Type: Commercial and industrial power distribution systems

Voltage and Ratings

• Maximum Voltage: 600 VAC
• Interrupting Rating: 200 kA @ 240 VAC
• Interrupting Rating: 100 kA @ 480 VAC
• Interrupting Rating: 50 kA @ 600 VAC
• Frequency: 50/60 Hz

Product Data

• Manufacturer: Eaton / Cutler-Hammer
• Product Series: KDC Series
• Model Number: KDC3400
• Current Rating: 400A
• Number of Poles: 3
• Connection Type: Bolt-On
• Terminal Type: Line and Load Terminals Included
• Application: Panelboards, switchboards, and heavy-duty industrial electrical distribution systems

xImportant Note

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

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You may return items within 30 days of delivery for a refund.

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