Description
The Eaton Cutler-Hammer KW3400F is a high-performance Series C K-Frame molded case circuit breaker frame. Engineered for reliable power distribution and motor circuit protection, this industrial-grade unit provides essential overcurrent and short-circuit shielding for electrical systems, supporting interchangeable trip units to meet specific load requirements.
Key Specifications
- Model Number: KW3400F
- Frame Type: K-Frame (Series C)
- Amperage Rating: 400A Maximum
- Pole Configuration: 3-Pole
- Voltage Rating: 600V AC / 250V DC
- Interrupting Capacity: 35 kAIC at 480V AC
Technical Parameters
- Frame Current: 400 Amperes
- Protection Technology: Thermal-Magnetic (Fixed Frame)
- Terminal Type: Line and Load side lugs (optional)
- Standard Compliance: UL 489, CSA, IEC 60947-2
- Mounting Style: Fixed bolt-on or plug-in adapters
Application Fields
- Commercial building electrical panels
- Industrial motor control centers (MCC)
- Renewable energy solar inverters
- Data center power distribution units
- Heavy machinery and OEM equipment
Product Q&A
- Q: Is the trip unit included with the KW3400F?
- A: The “F” suffix typically denotes a “Frame Only” unit; a separate compatible trip unit must be installed for operation.
- Q: Can this breaker be used for DC applications?
- A: Yes, it is rated for DC systems up to 250V when wired according to manufacturer specifications.
- Q: What is the difference between KW and KD frames?
- A: The KW frame offers higher interrupting ratings (35 kAIC at 480V) compared to the standard KD frame (25 kAIC).
- Q: Are internal accessories like shunt trips available?
- A: Yes, it supports a wide range of field-installable accessories including auxiliary switches and undervoltage releases.
