On our Job we have a GE Spectra Panelboard 1200A, 208Y/120V 3P 4W NEMA 3R. The MLO is bottom feed. The Panel Interior is completely full with SGHA6 & THED Frame Circuit. Although, there is a GE 5X Filler Plate with available Bussing above the highest top mounted circuit breaker. GE is stating the top 5X Filler can be used for additional 3 Pole Circuit Breaker Installations.
Is there NEC Code restrictions on Panelboard Construction & Circuit Breaker Mounting Height?
Is there NEC Code restrictions on Panelboard Construction & Circuit Breaker Mounting Height?