© 2003 EFI Electronics Corporation All Rights Reserved
1
1230-1029A 03/03
T80W and T80E
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
The T80W and T80E Surge Protective Devices (SPD) are designed to provide
protection at the service entrance, branch panels or other critical locations.
Black
Black
White
Green
Orange
Figure 1: Wiring Diagrams
1Ø 3-wire 120/240 Vac
L1
N
L2
L1
N
L2
L3
3Ø 4-wire 208Y/120 Vac,
380Y/220 Vac, 480Y/277 Vac,
or 600Y/347 Vac
L1
L2
L3
N
3Ø 4-wire 240D/120 Vac
Black
Black
Green
L1
L2
N
3Ø 3-wire (grounded B phase)
240D Vac, 480D Vac or 600D Vac
White
Black
Black
Green
White
Black
Black
Black
Green
White
Black
Class CC
Fuses
Class CC
Fuses
Class CC
Fuses
Class CC
Fuses
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.
• Must be installed with provided class CC fuses.
Failure to follow these precautions can result in equipment damage.
CAUTION
