ABB OVRHLD Series Manuel utilisateur

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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

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Table of contents

004 Guide to installation

and assistance

005 Installation

006 Operation

007 Electrical connections

Model #

_____________________________________________________________________________________

Date of purchase

_____________________________________________________________________________________

Date installed

_____________________________________________________________________________________

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.

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

EARTH

GROUND SPD

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

EARTH

GROUND SPD

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

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: +1 800 292 3739

Fax: +1 804 236 4047

abb.com

Specifications subject to change without notice.

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