Square D NSB2510FG1 Manual Starters 277V AC 1P

Square D 2510FG1 Manual Starter is a single-pole, non-reversing motor starter in a NEMA 1 enclosure designed for direct mounting in standard single-gang boxes, delivering overload protection and manual ON/OFF control for small single-phase motors. It is rated for 16 A and 1 HP at 277 V AC (1P, 1 phase); the broader family lists 1 HP at 115, 230, and 277 VAC. It is toggle-operated with no indicator light. Open-style enclosure with top and bottom knockouts for cable entry on 0.5" and 0.75" entries. Terminations are screw-clamp terminals for copper conductors AWG 14–12. Overload protection uses a melting alloy element that is ordered separately to match motor data. Dimensions are approximately 4.25 in tall, 2.44 in wide, and 2.75 in deep. The unit is UL listed and CSA certified, with CE listing in some references.