Mersen 20A 690Vac 10mm x 38mm gR High Speed Fuse

20A High Speed AC Fuse. Also known as a Semiconductor Fuse.

Current:  20A Continuous (derated to 18A when fitted in a fuse holder)
Voltage:  690V AC
Size:  10mm x 38mm

Operating Class: gR

Fuse Power Loss: 3.7W (at 20A). Maximum continuous rated current when fitted in a fuse holder is 18A (derated to ensure fuse power loss does not exceed fuse holder discipation limit of 3W). See fuse holder linked below
Suitable for apparatus requiring a 20A gR fuse where the continuous operating current is 18A or below

Manufacturer is Mersen, previously sold under the Ferraz Shawmut brand.

Manufacturers Part Number:  FR10GR69V20 or E1014580