Product Description: The Square D RKF36100U31A is a Molded Case Circuit Breaker from the Powerpact family. It features 3 poles, 600V voltage, and a 1000A amperage rating with a 65kA@480V AIC rating. This breaker uses a Bolt-On connection and includes Solid State protection for reliable performance. Key Features: ✔ Part Number: RKF36100U31A ✔ Manufacturer: Square D ✔ Category: Circuit Breaker ✔ Subcategory: Molded Case ✔ Family: Powerpact ✔ Type: RKF ✔ Voltage: 600 ✔ Amperage: 1000 ✔ Phase: 3 ✔ Poles: 3 ✔ AIC rating: 65kA@480V ✔ Connection: Bolt-On ✔ Functions: LI - Long-Time and Instantaneous ✔ Protection: Solid State ✔ Weight: 37