User guide

1 Preface
1-1 Introduction
DS-C33 series UPS is one of the industry’s most reliable and stable power protection equipment. It is
fully controlled by DSP (Digital Signal Processor) to ensure high performance and worry free operation
in protecting your valuable equipment from power disturbances. This makes the DS-C33 series UPS
fully compatible for use in computer, precision instrument, banking, manufacturing, and other mission
critical applications.
1-2 Safety Note and Precaution
Please note and refer to warning marks which you will find in the unit.
Don’t touch Risk of electrical shock
Areas with the “Risk of electrical shock” mark indicate 410VDC high voltage. Do not touch the
parts with this mark.