Wohner QCB-NH00-AC-SD AC Switch Disconnector

The Wohner QCB NH00-AC-SD 3-pole AC switch disconnector is a load-break device designed for industrial power distribution, switching, isolating, and protecting circuits that use NH00 fuse links. It is rated for 160 A at 690 V AC (UL rated 600 V AC) and is busbar-mounted for 60Classic busbar systems, with busbar compatibility for 12, 15, 20, 25, 30 x 5 mm and 10 mm bars, and a box terminal/cage clamp connection plus IP30 front protection. This NH00 fuse switch disconnector provides both load isolation and fuse protection for feeders, motors, transformers, and branch circuits, and supports 50/60 Hz operation with a 100 kA SCCR. Compliance includes IEC 60947-3 and UL 4248-1, and it is commonly used in switchgear, MCC panels, industrial automation, and power distribution applications. Common replacements include Siemens 3NP Series, ABB OS Series, and Mersen NH fuse switch disconnectors.