Square D H312DS Fusible Safety Disconnect Switch

The Square D H312DS is a 3-pole, fusible safety disconnect switch rated for 30 A at up to 600 V, with a stainless-steel enclosure built for durability in demanding environments. This device provides a dedicated isolation point for servicing and maintenance, allowing safe disconnection of power to three‑phase equipment while the rest of the system remains energized. As a fusible disconnect, it is designed to work in systems where fusing accompanies the switch, making it suitable for protecting motors, pumps, conveyors, and other 3‑phase loads up to the 600 V, 30 A rating. The stainless-steel enclosure offers rugged protection and a clean, corrosion-resistant surface, aligning with industrial or harsh-environment installations that require a resilient safety switch component within control panels or motor control centers.