© 2003 EFI Electronics Corporation All Rights Reserved
1
1230-1030J 03/03
Omni-Phase OSW and OSE
Transient Voltage Surge
Suppressor (TVSS)
INTRODUCTION
PRECAUTIONS
Instruction Bulletin
DANGER
HAZARD OF ELECTRIC SHOCK, BURN OR EXPLOSION.
• This equipment must be installed and serviced only by qualified electrical
personnel in accordance with National and Local Electrical Codes.
• Turn off all power supplying this equipment before working on or inside enclosure
containing this equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors, and covers before turning on power to this equipment.
Failure to follow these instructions will result in death or serious injury.
Not for use on ungrounded systems.
Failure to follow these instructions can result in death or serious injury.
WARNING
HAZARD OF EQUIPMENT DAMAGE.
• Megger® or hi-potential tests will damage this surge protective device. Turn off
all power supplying the equipment and isolate the surge protective device before
testing.
Failure to follow these precautions can result in equipment damage.
CAUTION
The Omni-Phase OSW and OSE Surge Protective Devices (SPD) are designed to
provide protection at the service entrance, branch panels or other critical locations.
