Technical Parameters Parameter Category Description / Value Brand & Series Eaton, FAZ Series (Bussmann) Model Number FAZ-D20/3-NA Fuse Class & Rating Class D Rated Current: 20 A Rated Voltage: 600V AC / 300V DC Number of Poles / Quantity 3 pieces (Typically supplied as a 3-pole set for a 3-phase application) Type Time-Delay (Dual-Element) Rated Voltage 600V AC / 300V DC Interrupting Rating 200 kA AC (200,000 Amps) at 600V AC Approvals / Standards UL 248-10 (Class D), CSA C22.2 No. 248.10 Electrical Characteristics Current-Limiting: Yes Time-Delay: Can typically withstand 500% of rated current for up to 10 seconds, allowing motor inrush currents to pass without nuisance opening. Physical Dimensions Body: 1-1/4" x 2-1/4" (31.8mm diameter x 57.2mm length) - Edison Base (screws into a standard fuse holder) Mounting / Fuse Holder Requires a compatible Class D fuse holder or fuse block Indicator / Feature NA - Indicates a non-indicating version. There is no visual indicator to show if the fuse has blown.