ABB OVRHLD Series Manuel d'installation, d'utilisation et d'entretien - Page 2

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OVRH LD SE RIES S U R G E P R OT E C T I V E D E V I C E S

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Introduction

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

– 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.