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The Eaton Cutler-Hammer HKDDC3400 is a heavy-duty K-frame molded case circuit breaker designed to provide dependable protection in DC electrical distribution systems. Featuring a thermal-magnetic interchangeable trip unit, this breaker ensures accurate overload and short-circuit protection while allowing adjustable trip settings for different operational requirements. With a 400-ampere rating at 40°C and high DC interrupting capacity, the HKDDC3400 is well suited for industrial facilities, renewable energy systems, battery storage installations, and other demanding DC power applications. The bolt-on mounting design ensures secure installation in electrical panels and switchgear, while the standard terminal configuration simplifies wiring and system integration.
Product Specifications
- Brand: Eaton / Cutler-Hammer
- Model: HKDDC3400
- Breaker Type: Molded Case Circuit Breaker (MCCB)
- Frame Style: HKD (K-Frame)
- Rated Current: 400 Ampere
- Number of Poles: 3 Pole
- Trip Unit Type: Thermal Magnetic Interchangeable Trip Unit
- Mounting Type: Bolt-On Connection
- Terminal Configuration: With Terminals Standard
- 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: DC power protection and distribution systems
Voltage and Ratings
- Maximum Voltage: 600 VDC
- Interrupting Rating (1 Pole in Series): 42 kA @ 125 VDC
- Interrupting Rating (2 Poles in Series): 50 kA @ 250 VDC
- Interrupting Rating (3 Poles in Series): 42 kA @ 600 VDC
- Frequency Reference (AC): 50/60 Hz
Product Data
- Manufacturer: Eaton / Cutler-Hammer
- Product Series: HKD Series
- Model Number: HKDDC3400
- Current Rating: 400A
- Number of Poles: 3
- Connection Type: Bolt-On
- Terminal Type: Standard Terminals Included
- Application: Industrial DC power distribution, battery systems, and renewable energy protection circuits
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 selected options. If accessories are ordered together with the breaker, they can be installed according to 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 before shipment.