3
Instruction Booklet
IB156002EN
Effective January 2022
Eaton HCU2/HCUn active harmonic
filter installation manual
EATON
www.eaton.com
Important information
Read these instructions carefully and look at the equipment to
become familiar with the device before trying to install, operate,
service or maintain it. The following special messages may appear
throughout this bulletin or on the equipment to warn of potential
hazards or to call attention to information that clarifies or simplifies
a procedure.
Definition of symbols
WARNING
THIS SYMBOL INDICATES HIGH VOLTAGE. IT CALLS YOUR ATTENTION
TO ITEMS OR OPERATIONS THAT COULD BE DANGEROUS TO YOU AND
OTHER PERSONS OPERATING THIS EQUIPMENT. READ THE MESSAGE
AND FOLLOW THE INSTRUCTIONS CAREFULLY.
THIS SYMBOL IS THE “SAFETY ALERT SYMBOL.” IT OCCURS WITH
EITHER OF TWO SIGNAL WORDS: CAUTION OR WARNING, AS
DESCRIBED BELOW.
WARNING
INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT
AVOIDED, CAN RESULT IN SERIOUS INJURY OR DEATH.
CAUTION
INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF
NOT AVOIDED, CAN RESULT IN MINOR TO MODERATE INJURY, OR
SERIOUS DAMAGE TO THE PRODUCT. THE SITUATION DESCRIBED IN
THE CAUTION MAY, IF NOT AVOIDED, LEAD TO SERIOUS RESULTS.
IMPORTANT SAFETY MEASURES ARE DESCRIBED IN CAUTION (AS
WELL AS WARNING).
Warnings and cautions
WARNING
HAZARD OF PERSONAL INJURY.
• USE PROPER LIFTING EQUIPMENT SUCH AS AN OVERHEAD CRANE TO
HANDLE THE ACTIVE FILTER
• DO NOT LAY THE EQUIPMENT ON ITS FRONT
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN DEATH,
SERIOUS INJURY, OR EQUIPMENT DAMAGE.
CAUTION
RISK OF EQUIPMENT DAMAGE.
ADHERE TO DC CHOKE, SCR BASED RECTIFIER, AND CAPACITOR
PLACEMENT REQUIREMENTS.
FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN EQUIPMENT
DAMAGE.
CAUTION
RISK OF EQUIPMENT DAMAGE.
ENSURE THAT THE INSTALLATION LOCATION SATISFIES
ENVIRONMENTAL REQUIREMENTS.
FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN EQUIPMENT
DAMAGE.
WARNING
HAZARD OF PERSONAL INJURY.
• THE UNIT MUST BE PROPERLY GROUNDED BEFORE POWER
IS APPLIED.
• GROUND EQUIPMENT USING THE GROUND CONNECTING
POINT PROVIDED.
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT IN DEATH OR
SERIOUS INJURY.