Product Description: The Cutler Hammer MDL3400W is a Molded Case Circuit Breaker from the Series C family. It features a 3-pole design with a 600V, 400A rating and a 50kA@480V AIC rating. This breaker uses a Bolt-On connection and includes Thermal Magnetic protection. It does not include lugs, which must be ordered separately if needed. Key Features: ✔ Part Number: MDL3400W ✔ Manufacturer: Cutler Hammer, Eaton, Westinghouse ✔ Category: Circuit Breaker ✔ Subcategory: Molded Case ✔ Family: Series C ✔ Type: MDL ✔ Voltage: 600 ✔ Amperage: 400 ✔ Phase: 3 ✔ Poles: 3 ✔ AIC rating: 50kA@480V ✔ Connection: Bolt-On ✔ Functions: LI - Long-Time and Instantaneous ✔ Frame Size: M Frame ✔ Protection: Thermal Magnetic ✔ UPC: 782116056392 ✔ GTIN: 00782116056392 ✔ Country of Origin: United States ✔ Certification: UL Listed