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PRODUC T MANUAL
OVRHT3 series and OVRHS3U series
Surge protective devices
Installation, operation and maintenance manual
OVRHT3B
OVRHT3C
OVRHS3U
WARNING!:
THE OVRHT3 SERIES AND OVRHS3U SERIES WARRANTY IS VOIDED if the unit is damaged as a result of improper installation or the installer’s
failure to verify the following conditions prior to installation.
WARNING!:
HAZARDOUS VOLTAGES PRESENT: Improper installation or misapplication may result in serious personal injury or damage to the electrical
system. Read the complete installation instructions before proceeding with installation. Remove all power to the electrical panel before
installing or servicing the SPD.
WARNING!:
IMPORTANT SAFETY INSTRUCTIONS: All work must be performed by licensed and qualified personnel. Follow applicable electrical specifications
for the country the unit is being used in.
WARNING!:
Check to ensure that a proper bond is installed between neutral and ground at the transformer upstream from all 3-phase Wye, 3-phase
High-leg, 2-phase, or 1-phase, OVRHT3 series and OVRHS3U series device. If the transformer is not accessible, check the main service
disconnect/panel for the NG bond. Lack of a proper bond will damage OVRHT3 series and OVRHS3U series and void the warranty.
WARNING!:
Do not HIPOT the OVRHT3 series and OVRHS3U series units or the electrical system to which the OVRHT3 series and OVRHS3U series unit is
connected without disconnecting the OVRHT3 series and OVRHS3U series units conductors including phases, neutral and ground.
Warning! lnstallation by person with electrotechnical expertise only.
Warnung! lnstallation nur durch elektrotechnische Fachkraft.
Avertissement! lnstallation uniquement par des personned qualifiées électrotechnique.
iAdvertencia! La instalación deberá ser realizada únicamente por electricistas especializados.
Thank you for choosing the ABB
OVRHT3 series and OVRHS3U series
Surge Protective Device (SPD).
We look forward to fulfilling your
facilitywide surge protection needs.
This manual provides guidelines for the proper installation of the
OVRHT3 series and OVRHS3U series of devices. Proper product
selection and compliance with these guidelines will help your new
suppression system provide years of reliable service. If installers
are unsure about the facility electrical configuration or have other
installation-related questions, it is recommended they consult with a
qualified electrical professional.
When shortcuts are taken or installation procedures are not followed,
the OVRHT3 series and OVRHS3U series may become damaged or may
not provide adequate protection. It is extremely important to follow
these installation procedures carefully.
