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ABB OVRHS3 Series, Installation, Operation And Maintenance Manual, Page: 7 / 8

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ABB OVRHS3 Series Installation, Operation And Maintenance Manual Download Page 7

 

CAUTION: 

Do not assume the circuit is de-energized! Remove power 
before performing any maintenance to these devices.

OVRHS3 mounting

Connecting the remote contacts to an alarm

  

(If option chosen on the OVRHS3U)

For “Fail-safe” Form A monitoring, connect the alarm leads 
to terminals 2 and 3. Terminals 2 and 3 will be closed during 
normal (Power ON) operation and the protector is functioning 
properly. 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

Mounting 

Surface

Ground

N

G

L

Neutral 

Bars

Circuit Breaker

N

G

Locknut

Surge Suppressor

Line Wire

OVRHS3-F1 mounting

OVRHS3U mounting 

OVRHS3/OVRHS3U surge protective devices 

| Product manual  7

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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