ABB OVRHS3 Series User manual

OVRHS3/OVRHS3U series
Surge protective devices
Installation, operation 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

Table 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

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

4 Product manual | OVRHS3/OVRHS3U surge protective devices
Important safety instructions
Installation
Refer to Table 1 to see if an upstream overcurrent protection
device is required. Type 1 SPD devices do not require upstream
overcurrent protection, but Type 2 SPDs must be installed
behind an overcurrent protection device. The suppressor must
be installed on the load side of the main service disconnect.
The unit must be installed in parallel to the electrical distribution
system. Careful consideration should be made in selecting the
knockout location because excess lead length and sharp bends
in the wire drastically decrease the effectiveness of the SPD.
For this reason choose a knockout location that minimizes lead
length and sharp bends. The SPD may also be mounted by it’s
metal bracket (option) within the equipment enclosure.
1. Disconnect all power supplying the electrical panel.
2. Remove the panel screws and cover. Retain these parts for
re-installation.
3. Either remove a knockout 13mm (0.5 inches) or install
provided metal bracket (option).
4. Remove lock washer from the SPDs threaded nipple.
Carefully feed the wires through to avoid cutting wire
insulation. Slide lock washer over the wires to anchor the
threaded nipple. Rotate the SPD so that the function status
LED indicators can be easily viewed. Tighten the lock washer
to secure the SPD.
5. Locate the neutral bar inside the electrical panel and connect
the white or blue wire to the neutral 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 wire may be terminated to
neutral.
7. Black or brown wires (model dependent) should be
connected to either the breaker or the bus of the panel,
as long as the short circuit current rating does not exceed
65 or 100kAIC (see Table 1 for specific model ratings). On
the OVRHS3401203H (120/240 High-Leg Delta) protector
connect the orange wire to phase B (the high leg). If you
would like to be able to turn the unit off, then you may
consider connecting it to a breaker (# of breaker pole
positions determined by the # of black or brown wires
provided with the unit). Tighten terminals to torque specified
on inside of panel. Keep lead lengths as short as possible
and avoid sharp bends.
8. Re-install panel cover.
Operation
1. Apply power to the panel. If the electrical and grounding
wirings are done correctly, the green function status LED will
illuminate. If the LED does not turn on, remove the power and
review all of the previous installation procedures.
2. If after a known heavy lightning strike has occurred and
the LED is off, reset the breaker if the OVRHS3 is tied to a
breaker. If the LED light(s) come(s) back on then the protector
is fine. If the LEDs are still out, or you can not reset the
breaker, the protector must be replaced. This unit contains
no user serviceable parts.

Performance data
OVRHS3/OVRHS3U surge protective devices | Product manual 5
Table 1
Model number SPD type kAIC rating Upstream breaker Wire gauge
OVRHS3401201P 1, 2 100 Not required 14 AWG
OVRHS3402301P 2100 30A 14 AWG
OVRHS3404801P 2100 30A 14 AWG
OVRHS3401202S 1, 2 100 Not required 14 AWG
OVRHS3401203H 2100 30A 14 AWG
OVRHS3401203Y 1, 2 100 Not required 14 AWG
OVRHS3402403D 1, 2 100 Not required 14 AWG
OVRHS3402773Y 2100 30A 14 AWG
OVRHS3402773D 2100 30A 14 AWG
OVRHS3402303Y 2100 30A 14 AWG
OVRHS3401202SF1 265 60A 12 AWG
OVRHS3601202SF1 265 60A 12 AWG
OVRHS3801202SF1 265 60A 12 AWG
OVRHS3U401201P 1, 2 100 Not required 14 AWG
OVRHS3U402401P 2100 30A 14 AWG
OVRHS3U401202S 1, 2 100 Not required 14 AWG
OVRHS3U802402SR 2100 30A 14 AWG
OVRHS3U402403D 1, 2 100 Not required 14 AWG
OVRHS3U404803D 265 20A 14 AWG
OVRHS3U401202S 265 20A 14 AWG
OVRHS3U402083Y 1, 2 100 Not required 14 AWG
OVRHS3U402773Y 265 20A 14 AWG
OVRHS3U402303Y 265 20A 14 AWG
All units are furnished with 36" leads.

Electrical connections
OVRHS3(U)401201P
OVRHS3(U)402401P
OVRHS3401201P
OVRHS3402301P
OVRHS3404801P
OVRHS3(U)401202S
OVRHS3(U)402083Y
OVRHS3(U)402773Y
OVRHS3(U)402303Y
OVRHS3401203Y
OVRHS3402773Y
OVRHS3402303Y
OVRHS3401203H
OVRHS3(U)402403D
OVRHS3(U)404803D
OVRHS3402403D
OVRHS3402773D
6 Product manual | OVRHS3/OVRHS3U surge protective devices
Figure 4: 3-phase Delta, 3-wire
Figure 1: 1-phase, 2-wire
1-POLE 1
CIRCUIT BREAKER
SPD
G
N
EARTH
GROUND
Xo BOND
L1
L1
N
N
G
NG
L
Figure 2: 2-phase, 3-wire
2-POLE 1
CIRCUIT BREAKER
SPD
L1
L2
G
N
EARTH
GROUND
Xo BOND
L1
N
L2
NG
L1
L2
N
G
Figure 3: 3-phase Wye, 4-wire
3-POLE 1
CIRCUIT BREAKER
SPD
EARTH
GROUND
Xo BOND
B
N
CA
NG
N
G
A
B
C
G
N
ABC
3-POLE 1
CIRCUIT BREAKER
B
CA
NG
SPD
A
B
C
G
ABC
G
EARTH
GROUND
Figure 5: 3-phase High-Leg Delta, 4-wire
Note: High-Leg Orange must be B Phase
A
3-POLE 1
CIRCUIT BREAKER
AB
BC
C
N
N
G
NG
SPD
A
C
B
G
N
EARTH
GROUND
Xo BOND
1Please see Table 1 for required circuit breaker.

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

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080816
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