NH fuse switch-disconnector LV NH3 185mm 3-pole M12 - black. NH3 fuse switch-disconnector 630 A, for busbar mounting, distance 185 mm. According to DIN EN 60947-3 and IEC 60947-3, suitable for NH fuse links according to DIN 43620-1. Consists of 3-pole switch-disconnector base and sealable handle insert, touch protection on the handle, with sliding transparent window for voltage testing, all-pole switching, with universal connection screw M12, rust-protected.