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TED4015
5.3 Replacing the Mains Fuses
The two power input fuses are externally accessible. If they have opened due to line disturb-
ance or other influences from the outside, they can be replaced at the rear without opening the
unit.
Warning
To avoid fire hazard, replace the two mains fuses with fuses of the specified type and
rating only. Fuse Type: IEC60127-2/1 (High breaking capacity!), F10 H 250V, fast acting
(F) 10 Amperes, size 5 x 20 mm
Instructions:
1. Power off the TED4015 and disconnect the mains cable.
2. The fuse holder (R10, see Figure 17) is located below the 3-terminal power connector of
the mains jack (R9). Release the fuse holder by bending its two plastic retainers with the
aid of two small screwdrivers. The retainers must be pressed towards the center of the
fuse holder.
3. Replace the defective fuses (R11). We recommend changing both fuses, even if only one
fuse has opened. Press in the fuse holder until locked on both sides.
4. Switch on the unit. If it cannot be switched on, please contact your supplier or
Thorlabs
.
