ABB OVRHLD Series User manual

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PRODUCT MANUAL
OVRHLD – Surge protective devices
Installation, operation and maintenance manual

2OVRHLD SERIES SURGE PROTECTIVE DEVICES
– Listed to UL 1449 4th edition for Type 1 SPD
applications.
– Multiple Metal Oxide Varistors (MOVs), with
individual overcurrent fusing and thermal
disconnects for each MOV.
– LED indicates proper functioning of MOVs.
The OVRHLD Surge Protective Device (SPD) is
designed for protection of downstream distribution
equipment and wiring as well as most sensitive
electrical and electronic loads from the effects of
overvoltage transients that might result from
lightning, induction, and switching of loads or
capacitor banks. This is a light duty device and
should be used in minimum to moderate lightning
environments, or in high lightning areas if used
downstream of a primary, heavier duty protection
device installed at service entrance.
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Product features
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Introduction

3
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Table of contents
004 Guide to installation
and assistance
005 Installation
006 Operation
007 Electrical connections
Model #
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Date of purchase
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Date installed
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Installer
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4OVRHLD SERIES SURGE PROTECTIVE DEVICES
WARNING!:
THE OVRHLD 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!:
Do not HIPOT the OVRHLD series units or the
electrical system to which the OVRHLD series unit
is connected without disconnecting the OVRHLD
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.
This manual provides guidelines for the proper
installation of the OVRHLD 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 OVRHLD series may become
damaged or may not provide adequate protection.
It is extremely important to follow these installation
procedures carefully.
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Guide to installation and assistance
Thank you for choosing the ABB OVRHLD series Surge Protective Device (SPD).
We look forward to fulfilling your facilitywide surge protection needs.

5
Electrical Service
The OVRHLD surge suppressor shall not be
connected to an electrical service with an available
short circuit current of more than 65,000A rms.
The OVRHLD does not require an upstream over
current device. If one is used, we recommend 200A
maximum. The interrupt rating of the device shall
not be less than the available short circuit current.
The OVRHLD suppressor is intended to be used only
on grounded electrical services where the neutral
is bonded to ground at the service entrance (types
USA and TN-C-S) or bonded to ground at the source
and the source grounding conductor is connected to
site ground (type TNS).
The OVRHLD suppressor can be installed on 2-wire
and 3-wire single phase, and 4-wire three phase
services. See diagrams on facing page.
Location
The OVRHLD suppressor may be installed on the line
or load side of the main service disconnect. It can be
located indoor or outdoor. If installed outdoors in
hot climates, avoid direct sun exposure. Orient the
unit so the functional status lights are visible. This
unit cannot be employed on a flush mounted load
center with a finished wall surface.
Connection
Mount through 1/2" knockout (12.7 mm) in the
electrical panel and secure with lock nut. Black wires
connect to phase (hot), white wire to neutral bar,
green/yellow wire to ground bar. Not all models will
have all wire colors.
The black or brown (hot) and white or blue (neutral)
wires may connect across the main lugs or buses in
the panel (if so provisioned with connection means).
The suppressor can also be connected to a double
ganged breaker suitable for use with #14 wire – this
method allows the device to be isolated for test or
replacement without de-energizing the electrical
service. Use 20A min circuit breaker at main panel,
use 10A min at subpanel. To optimize protection
levels, this breaker should be adjacent to the panel’s
main lugs or main disconnect breaker. Minimize
suppressor wires length and avoid unnecessary
bends in suppressor wires.
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Installation

6OVRHLD SERIES SURGE PROTECTIVE DEVICES
Monitoring
On some models the internal condition of this
device and its protective function are monitored by
green LEDs on the face of the unit. When the LEDs
are lit, the suppressor is functioning properly and
providing protection.
Replace the OVRHLD suppressor
if a light is out
At the end of life, the OVRHLD Surge Protective
Device (SPD) will generally fail open circuited and
not trip a dedicated breaker if used. If the breaker is
found tripped, it should be reset: If it retrips, replace
the suppressor. If it resets and the green LEDs
remain lit, the suppressor is sound and use may be
continued.
Model Protetion Modes Optimum application/location
OVRHLD-yy-xxx-1 L1–N, N–G (1 LED) 2 or 4-wire branch circuit (local lightning conditions)
OVRHLD-yy-xxx-2 L1–N, L2–N (2 LEDs) 3 or 4-wire service entry*
OVRHLD-yy-xxx-3 L1–G, L2–G (2 LEDs) 3-wire L-L branch circuit w/o neutral connected loads
OVRHLD-yy-xxx-4 L1–G, N–G (1 LED) 2-wire incoming branch circuit, common mode lightning protection
OVRHLD-yy-xxx-5 L1–N, L1–G (2 LEDs) 2-wire branch circuit (no local lightning)
OVRHLD-yy-xxx-6 L1–N (1 LED) 2-wire service entry*
OVRHLD-yy-xxx-7 L1–G (1 LED) 2-wire service entry*
OVRHLD-yy-xxx-8 N–G (0 LEDs) Branch circuit, common mode lightning protection
OVRHLD-yy-xxx-9 L1–L2 (1 LED) L-L Branch circuit
Where yy = 20, 25, 30
Where xxx= 120, 127, 230, 277
* Within 20m of service entry, minimal to moderate lightning enviroment
For poorly regulated 120 Vac circuits, and for 127–138 Vac L-N circuits, use LDPyy-127-z
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Operation

7
L
N
L
G
EARTH
GROUND SPD
L
N
L
G
L
N
L
G
EARTH
GROUND SPD
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2-wire circuits
OVRHLD-xx-yyy-6 OVRHLD-xx-yyy-1
OVRHLD-xx-yyy-4
OVRHLD-xx-yyy-5
L
N
L
L
G
EARTH
GROUND SPD
L
N
L
L
G
EARTH
GROUND SPD
OVRHLD-xx-yyy-2 OVRHLD-xx-yyy-3
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4-wire circuits
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3-wire circuits
OVRHLD-xx-yyy-1
For three phase circuits, 120/208, 220/380, 230/400, 240/415
and 277/480
OVRHLD-xx-yyy-2
For single phase voltages where L-N could be
120, 230, or 277
For split single phase and “2-legs off a Wye” circuits L-N at 120, 230, or 277.
Service may be 120/240V 1 phase 3-wire or 208Y/120V 2 phase 3-wire
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Electrical connections
G
N
L
G
N
L
EARTH
GROUND SPD
EARTH
GROUND SPD

PN: 750-0122-004 A00 053017
Additional information
We reserve the right to make technical
changes to the product and to the
information in this document without
notice. The agreed conditions 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.
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Electrification Products
5900 Eastport Boulevard
Richmond, VA 23231-4453 USA
Tel: [phone]
Fax: [phone]
abb.com
© Copyright 2017 Thomas and Betts Power Solutions, LLC. All rights reserved.
Specifications subject to change without notice.