The Eaton 1HD323N NSB fusible safety switch is a three-pole, 100 A disconnect rated for 240 V with 50/60 Hz operation. In the NSB family, it uses a 4-wire configuration and provides fuse-protected isolation for three-phase equipment. The part number 1HD323N denotes this specific configuration from Eaton, making it suitable for industrial applications where reliable, local isolation of a 3-phase load is required.
