Siemens MBKJD3300A Main Breaker Mounting Kit With Breaker, For Use With JXD6 Breaker in P1 Next Generation Panelboard

Siemens Mounting Kit, Main Breaker, For Use With: JXD6 Breaker in P1 Next Generation Panelboard, 300 A, 3 Pole, 65 kA at 240 VAC, 35 kA at 480 VAC Interrupt Rating