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WARNING!: 

THE OVRHS3/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 or 2-phase OVRHS3/
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 OVRHS3/
OVRHS3U series and void the warranty.

 

WARNING!: 

Do not HIPOT the OVRHS3/OVRHS3U series units or the 
electrical system to which the OVRHS3/OVRHS3U series 
unit is connected without disconnecting the OVRHS3/
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 

OVRHS3/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 OVRHS3/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 OVRHS3/OVRHS3U series may become damaged 
or may not provide adequate protection. It is extremely 
important to follow these installation procedures carefully.

Guide to installation and assistance

OVRHS3/OVRHS3U surge protective devices 

| Product manual  3

Summary of Contents for OVRHS3 Series

Page 1: ...n and maintenance manual Product manual Product features Listed to UL 1449 4th Edition for Type 1 and Type 2 SPD applications Multiple Metal Oxide Varistors MOVs with individual and overcurrent protection LED indicates proper functioning of MOVs OVRHS3 OVRHS3 F1 OVRHS3U ...

Page 2: ...able of Contents Guide to installation and assistance 3 Important safety instructions 4 Electrical connections 6 Connecting Form C dry contacts 7 2 Product manual OVRHS3 OVRHS3U surge protective devices ...

Page 3: ...he OVRHS3 OVRHS3U series unit is connected without disconnecting the OVRHS3 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 realiz...

Page 4: ... bar and tighten to torque specified on inside of panel Keep conductor length as short as possible and avoid sharp bends in the wire 6 Locate the ground bar inside the electrical panel Connect the green yellow wire to the ground bar and tighten the terminal to the torque specified on the panel Keep conductor length as short as possible and avoid sharp bends If neutral is bonded to ground green wir...

Page 5: ...ed 14 AWG OVRHS3402773Y 2 100 30A 14 AWG OVRHS3402773D 2 100 30A 14 AWG OVRHS3402303Y 2 100 30A 14 AWG OVRHS3401202SF1 2 65 60A 12 AWG OVRHS3601202SF1 2 65 60A 12 AWG OVRHS3801202SF1 2 65 60A 12 AWG OVRHS3U401201P 1 2 100 Not required 14 AWG OVRHS3U402401P 2 100 30A 14 AWG OVRHS3U401202S 1 2 100 Not required 14 AWG OVRHS3U802402SR 2 100 30A 14 AWG OVRHS3U402403D 1 2 100 Not required 14 AWG OVRHS3U...

Page 6: ...1 1 phase 2 wire 1 POLE 1 CIRCUIT BREAKER SPD G N EARTH GROUND Xo BOND L1 L1 N N G N G L Figure 2 2 phase 3 wire 2 POLE 1 CIRCUIT BREAKER SPD L1 L2 G N EARTH GROUND Xo BOND L1 N L2 N G L1 L2 N G Figure 3 3 phase Wye 4 wire 3 POLE 1 CIRCUIT BREAKER SPD EARTH GROUND Xo BOND B N C A N G N G A B C G N A B C 3 POLE 1 CIRCUIT BREAKER B C A N G SPD A B C G A B C G EARTH GROUND Figure 5 3 phase High Leg D...

Page 7: ...If the protector should fail contacts 2 and 3 will open and contacts 1 and 2 will close Relay contacts are rated at 5A at 250Vac or 30Vdc maximum 50mVA minimum Relay contacts shown in the relaxed position protector alarm or loss of power Note Maximum torque on terminals is 10 in lbs RE M OT E AL AR M 1 2 3 1 2 3 Protector Service Panel Side N G Electrical Service Entry Protector Service Panel Side...

Page 8: ...tions at the time of the order shall apply ABB assumes no responsibility for any errors or omissions that may appear in this document We reserve all rights in this document and in the information contained therein Without prior written approval from ABB reproduction disclosure to third parties or use of any information in whole or in part is strictly forbidden 080816 Model Date of purchase Date in...

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