1000VDC INDICATING PV 10X38 FUSE HOLDER. The Littelfuse LFPHV fuse holder is designed to house 1000 Vdc 10x38mm (midget style) fuses. It is not designed for load break but is ideal for isolating photovoltaic module strings for maintenance and meets UL requirements for 1000 Vdc solar fuse protection. Features/Benefits: Finger-Safe design offers personnel protection. Compact design. 35 mm DIN Rail Mountable. No fuse pullers or tools required for fuse removal. Indication option available. Approved for field wiring. by Littelfuse | Gross Automation