NEMA Size 5, 270 A — what the rating means for your motor load
The A260N5-30-11-84 is a NEMA Size 5 magnetic contactor rated for 270 A continuous, 600 V maximum. That NEMA size rating maps to a specific motor horsepower table — Size 5 covers motors up to roughly 200 HP at 480 V, depending on the duty cycle. The 120 V AC coil draws from a standard control transformer; verify the control circuit can deliver the inrush without sagging below the pickup voltage.
Auxiliary contacts and panel fit
The contactor ships with a factory-installed auxiliary contact block providing one normally-open and one normally-closed contact. These are wired into the control logic for seal-in, status feedback, or interlocking. The NEMA 5 frame mounts to a backplate or panel; the A-Line series uses a common bolt pattern across sizes, so a replacement or upgrade within the same family keeps the existing mounting holes.