Cabletron Systems KBU64 Rackmount - Manual (Page 22)

Installation and Power Supply Requirements
80-10100001-09 5–3
20mm x 5mm, 3.15AH,250V Anti-surge (T) type for 110V to 120V
ratings.
If any problems are encountered with fuses continually blowing the
following alternative ratings maybe used:
20mm x 5mm, 3.15AH,250V Anti-surge (T) type for 220V to 240V
ratings.
20mm x 5mm, 6.3AH,250V Anti-surge (T) type for 110V to 120V
ratings.
Caution — for continued protection against risk of fire, replace
only with same type and rating of fuse.
NOTE: The rack should be professionally installed by a
competent engineer. There are no operator serviceable parts
inside the unit and it should only be opened by a qualified
service engineer. The mains supply should be disconnected
before removing the cover.