SAFETY INSTRUCTIONS 
3 
Safety Guidelines 
 
General 
Guideline 
 CAUTION 
  Do not place any heavy object on the power 
supply. 
  Avoid severe impact or rough handling that 
could lead to damaging the power supply. 
  Do not discharge static electricity to the power 
supply. 
  Do not block or obstruct the cooling fan vent 
openings. 
  Do not disassemble the power supply unless 
you are qualified as service personnel. 
(Measurement categories) EN 61010-1:2001 specifies the 
measurement categories and their requirements as follows. The 
PSP series power supplies fall under category II. 
  Measurement category IV is for measurement performed at the 
source of low-voltage installation. 
  Measurement category III is for measurement performed in the 
building installation. 
  Measurement category II is for measurement performed on the 
circuits directly connected to the low voltage installation. 
  Measurement category I is for measurements performed on 
circuits not directly connected to Mains. 
  AC Input voltage: 115/230 VAC±15%. 
  Connect the protective grounding conductor of 
the AC power cord to an earth ground, to avoid 
electrical shock. 
  Fuse type: Slow blow T3.15A/250V (230V 
input),  T6.3A/250 (115V input). 
  Make sure the correct type of fuse is installed 
before power up. 
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