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The Eaton Cutler-Hammer KDB3250 is a heavy-duty K-frame molded case circuit breaker designed to provide dependable protection in commercial and industrial electrical distribution systems. Equipped with a thermal-magnetic non-interchangeable trip unit, this breaker ensures reliable protection against overload and short-circuit conditions while maintaining a fixed trip configuration for stable system applications. Rated at 250 amperes at 40°C, the KDB3250 delivers strong interrupting capacity for both AC and limited DC circuits. Its bolt-on mounting design allows secure installation in panelboards and switchboards, while standard aluminum line and load terminals provide efficient wiring and reliable electrical connectivity.
Product Specifications
- Brand: Eaton / Cutler-Hammer
- Model: KDB3250
- Breaker Type: Molded Case Circuit Breaker (MCCB)
- Frame Style: KDB (K-Frame)
- Rated Current: 250 Ampere
- Number of Poles: 3 Pole
- Trip Unit Type: Thermal Magnetic Non-Interchangeable Trip Unit
- Mounting Type: Bolt-On Connection
- Standard Lug Type: Aluminum Line and Load End 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: Commercial and industrial electrical distribution systems
Voltage and Ratings
- Maximum Voltage: 600 VAC
- Interrupting Rating: 65 kA @ 240 VAC
- Interrupting Rating: 35 kA @ 480 VAC
- Interrupting Rating: 25 kA @ 600 VAC
- DC Interrupting Rating: 10 kA @ 250 VDC
- Frequency: 50/60 Hz
Product Data
- Manufacturer: Eaton / Cutler-Hammer
- Product Series: KDB Series
- Model Number: KDB3250
- Current Rating: 250A
- Number of Poles: 3
- Connection Type: Bolt-On
- Terminal Type: Aluminum Line and Load End Terminals Included
- Application: Panelboards, switchboards, and industrial electrical distribution systems
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 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.