ABB OVRHTE User manual

OVRHTE
Surge protective devices
Installation, operation and maintenance manual
Product manual
Product features
– Listed to UL 1449 4th edition for Type 2 SPD applications.
– Protects facilities and equipment against the harmful effects of
lightning strikes and internally generated electrical transients.
– Includes pre-wired pigtail conductors to streamline installation.
– Features internal copper bus conduction path to minimize
system impedances, lowering clamping voltage and increasing
protection.

Table of Contents
WARNING!:
THE OVRHTE 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 Delta or 2-phase OVRHTE
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 OVRHTE series and void the
warranty.
WARNING!:
Do not HIPOT the OVRHTE series units or the electrical
system to which the OVRHTE series unit is connected
without disconnecting the OVRHTE 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
OVRHTE 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 OVRHTE 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 OVRHTE 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
Guide to installation and assistance ....................2
Pre-installation checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Service configurations ..............................4
Mounting........................................5
Electrical connections ..............................6
2 Product manual | OVRHTE surge protective device

Check to ensure that a proper Xo bond is installed
between the neutral and ground terminals at the
transformer upstream from all 3-phase High-Leg Delta,
1-phase split phase, or 1-phase single phase OVRHTE
devices. Lack of a proper bond will damage the OVRHTE
and void the warranty.
Confirm that the environmental conditions are consistent
with these ranges:
Ambient temperature: The OVRHTE must be installed in an
area with a temperature between -40° and +60°C.
(-40° and +140°F).
Humidity: The OVRHTE must be installed in an area with
relative humidity between 5% and 95%, noncondensing.
WARNING!:
Discontinue installation if (1) your conditions are inconsistent
with the guidelines above or (2) your conditions cannot be
verified.
Confirm that the voltage(s) and service configuration
shown on the OVRHTE series product label are consistent
with the voltage and service configuration of the facility.
A model number is on the right side of the OVRHTE
series unit. Each model number corresponds to the
configurations printed in Table 1:
Model number Voltage Configuration
OVRHTExx1201P 120V 1-phase, 2-wire + ground
OVRHTExx2401P 240V 1-phase, 2-wire + ground
OVRHTExx1202S 120/240V 2-phase, 3-wire + ground
OVRHTExx1203Y 120/208V 3-phase Wye, 4-wire + ground
OVRHTExx2203Y 220/380V 3-phase Wye, 4-wire + ground
OVRHTExx2403Y 240/415V 3-phase Wye, 4-wire + ground
OVRHTExx2773Y 277/480V 3-phase Wye, 4-wire + ground
OVRHTExx3473Y 347/600V 3-phase Wye, 4-wire + ground
OVRHTExx2403H 120/240V 3-phase Hi-Leg Delta, 4-wire + ground
OVRHTExx2403D 240V 3-phase Delta, 3-wire + ground
OVRHTExx3803D 380V 3-phase Delta, 3-wire + ground
OVRHTExx4803D 480V 3-phase Delta, 3-wire + ground
Where “xx” = 25, 50, 80, 100 kA per mode
Pre-installation checklist
✓
Table 1: Configuration table
OVRHTE 25 120 1P 5
Model
kA rating
Voltage
Configuration
Options
Sample model number scheme
Example of a SPD model number: OVRHTE251201P5
OVRHTE series option
Dry Form “C” relay contacts add suffix 5
OVRHTE surge protective devices | Product manual 3

OVRHTE is to be connected in parallel with the electrical system
and must be fed by an overcurrent protection device (20A circuit
breaker or fuse) in a power distribution panel.
Figures 1–5 show the electrical relationship between OVRHTE
series unit and these five basic service configurations:
1-phase, 2-wire; 2-phase, 3-wire; 3-phase Wye, 4-wire;
3-phase Delta, 3-wire and 3-phase High-Leg Delta, 4-wire.
4 Product manual | OVRHTE surge protective devices
Figure 4: 3-phase Delta, 3-wire
Figure 1: 1-phase, 2-wire
20 AMP, 1-POLE
CIRCUIT BREAKER
OVRHTExx1P
SERIES
G
N
EARTH
GROUND
Xo BOND
CONDUCTORS
FURNISHED WITH
OVRHTE SERIES
L1
L1
N
N
G
NG
L
Figure 2: 2-phase, 3-wire
20 AMP, 2-POLE
CIRCUIT BREAKER
OVRHTExx2S
SERIES
L1
L2
G
N
EARTH
GROUND
Xo BOND
CONDUCTORS
FURNISHED WITH
OVRHTE SERIES
L1
N
L2
NG
L1
L2
N
G
Figure 3: 3-phase Wye, 4-wire
20 AMP, 3-POLE
CIRCUIT BREAKER
OVRHTExx3Y
SERIES
EARTH
GROUND
Xo BOND
B
N
CA
NG
N
G
CONDUCTORS
FURNISHED WITH
OVRHTE SERIES
A
B
C
G
N
ABC
20 AMP, 3-POLE
CIRCUIT BREAKER
B
CA
NG
OVRHTExx3D
SERIES
CONDUCTORS
FURNISHED WITH
OVRHTE SERIES
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
20 AMP, 3-POLE
CIRCUIT BREAKER
AB
BC
C
N
N
G
NG
OVRHTExx3H
SERIES
CONDUCTORS
FURNISHED WITH
OVRHTE SERIES
A
C
B
G
N
EARTH
GROUND
Xo BOND
Service configurations

OVRHTE surge protective devices | Product manual 5
Figure 6
Mounting hole detail
Four 7.9 mm (.3125 in.) holes are provided
for mounting the OVRHTE
Mounting
25.4 mm (1 in.)
101.6 mm (4 in.) 190.5 mm (7.5 in.)
HUB
152.4 mm (6 in.)
171.5 mm (6 .75 in.)
9.5 mm (.375 in.)

WARNING!:
Be sure power is off before terminating the OVRHTE leads.
Raceway: To route OVRHTE conductors to the panel being
protected, choose from any of these materials: (1) non-metallic
flexible conduit, (2) metallic flexible conduit, (3) rigid conduit or
(4) a nipple. The OVRHTE enclosure is provided standard with a
19.1 mm (.75 in.) hub which will accept rigid or IMC conduit. A
plastic flexible conduit with fitting and a 76.2 mm (3 in.) nipple
are available as options.
Wire length: Use the supplied 609.0 mm (24 in.), 5.26 mm2
(#10 AWG) leads. Trim leads to suit the application but do NOT
splice to add length to the leads. Refer to Figures 1–4 for the
color code of the OVRHTE leads. Terminate the leads as shown.
(Note: For optimum performance, keep leads as short as
possible and avoid sharp bends.)
Overcurrent protection: OVRHTE leads must be protected with
an overcurrent protection device (circuit breaker or fuse) rated
at 20 amps. Use a 3-pole breaker for 3-phase units or a 2-pole
breaker for single-phase units.
Dry Contacts: For OVRHTE units with optional dry contacts,
use butt splices within the panelboard to connect the dry
contacts leads to the user’s monitoring circuits. Alternatively,
install a junction box between the OVRHTE and the panelboard
to connect dry contacts leads to user’s monitoring circuits.
(See Figure 6). Consult applicable local codes to ensure proper
installation.
Before applying power
– Measure the line to line voltage at the panel to be protected
and be sure it is within ±10% of rated line to line voltage of
the OVRHTE. Use the following table to determine the range
of acceptable voltage for each model of OVRHTE.
Acceptable voltage ranges for All OVRHTE models
OVRHTE Nominal L-L voltage range
model number voltage
OVRHTExx1201P 120V N/A
OVRHTExx2401P 240V N/A
OVRHTExx1202S 120/240V 216 to 264
OVRHTExx1203Y 120/208V 188 to 228
OVRHTExx2203Y 220/380V 342 to 418
OVRHTExx2403Y 240/415V 374 to 457
OVRHTExx2773Y 277/480V 432 to 528
OVRHTExx3473Y 347/600V 540 to 660
OVRHTExx2403H 120/240V 216 to 264
OVRHTExx2403D 240V 216 to 264
OVRHTExx3803D 380V 342 to 418
OVRHTExx4803D 480V 432 to 528
Where “xx” = 25, 50, 80, 100 kA per mode
WARNING!:
Do not apply power if the measured voltage is not within
the range specified for the OVRHTE model being installed.
Electrical connections
6 Product manual | OVRHTE surge protective devices

OVRHTE surge protective devices | Product manual 7
Applying power
– Apply power to unit by closing the circuit breaker.
– Check OVRHTE lights. Protection is active when all lights are
illuminated.
Troubleshooting
Unit should be replaced if:
– Circuit breaker trips and cannot be reset
– One or more lights on OVRHTE are not illuminated
Options
The OVRHTE is available with these options:
– Dry relay contacts for remote monitoring. Upon failure of any
phase, the relay’s N.O. and N.C. contacts will change state.
The contacts are rated at 110VDC/125VAC with maximum
switching power of 30W DC/62.5VA AC.
– 457.0 mm (18 in.) of 19.1 mm (.75 in.) nonmetallic flexible
conduit and a fitting that connects to the provided 19.1 mm
(.75 in.) hub.
– 19.1 mm (.75 in.) x 76.2 mm (3 in.) nipple that connects to the
provided 19.1 mm (.75 in.) hub.
Standards/Compliance
– Listed by UL to UL 1449 4th Edition for Type 2 SPD
application, cUL, and UL1283
– Compliant to IEEE C62.41.1-2002, C62.41.2-2002, and
C62.45-2002
– NFPA 70 [NEC], Article 285
– RoHS compliant
Figure 6
Detail of optional dry relay contacts
Operation/Maintenance
The only operational verification necessary on the OVRHTE is to
observe that the lights are illuminated. There is no maintenance
to be performed on the OVRHTE nor does the OVRHTE contain
any user-serviceable parts.
Form “C” relay
Shown in alarm condition
N.O. – BLK
COM. – WHITE
N.C. – RED
N.O.
COM.
N.C.

PN: 750-0122-002 A00 © Copyright 2016
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© Copyright 2016 ABB, all rights reserved 072816
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Installer
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