KD3400S09

The Eaton KD3400S09 is a molded case circuit breaker from the Series C KD family, featuring a -poles configuration, a current rating of A, a voltage rating of V, and an interrupting capacity of {aic rating}. This breaker is engineered for industrial and commercial power distribution applications requiring reliable thermal magnetic protection with fixed trip settings. The KD3400S09 provides consistent long-time and instantaneous trip functions, enabling dependable overload and short-circuit protection in panelboards and switchboards. Its K-frame design supports a wide range of conductor sizes and offers high fault current interruption capabilities, making it suitable for demanding electrical environments.

The KD3400S09 is listed and marketed under three major brands: Eaton, Cutler-Hammer, and Westinghouse. This is due to Eaton?s acquisition of Cutler-Hammer and Westinghouse?s circuit breaker product lines, resulting in a unified manufacturing platform for certain breaker models. The KD3400S09 maintains identical form, fit, and function across these brands, ensuring seamless compatibility and interchangeability in existing installations originally specified under any of these manufacturers. This cross-brand listing facilitates easier maintenance, replacement, and system upgrades, especially in facilities with mixed or legacy equipment from these manufacturers.

The KD3400S09 employs a feed-thru connection method, accommodating both copper and aluminum conductors with secure lug terminations. It complies with UL 489 and CSA standards, ensuring adherence to North American safety and performance requirements. Electrical.com provides the Eaton KD3400S09 with full technical documentation, application support, and access to a knowledgeable sales team ready to assist with product selection, system integration, and troubleshooting to optimize your electrical distribution system?s safety and reliability.