14 HA0278T Rev H Dec 2016
Chapter 3
3.3 Electrical Installation
3.3.1 Connecting To The Supply
3.3.2 Fuses
Two T 3A/250V a.c. antisurge ceramic fuses are located on the back panel, one for
the live feed and one for the neutral as follows:
When replacing fuses:
1) Switch off th e power and disconnect the power cord before removing the fuse
cover.
Always replace broken fuses with a fuse of the same rating and type.
3.3.3 Current Leakage.
Shock Warning
The unit must be connected only to an earthed fused supply of 110 to 230V.
Use only power supply cables supplied by Thorlabs, other cables may not be
rated to the same current.
The unit is shipped to the UK, Europe and the USA, with the appropriate
power plug already fitted. When shipped to other territories the appropriate
power plug must be fitted by the user. Cable identification is as follows:
Brown-Live
Blue-Neutral
Green/Yellow-Earth/Ground
Fuse Rating Type Fused Line
F1 T 3.15A ceramic; antisurge Live feed
F2 T 3.15A ceramic; antisurge Neutral feed
Caution
The power supply filters may exhibit some ground loop current leakage
and could trip very sensitive detection circuits.