EFI T80W User manual
©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
©2003 EFI Electronics Corporation All Rights Reserved
2
T80W and T80E Transient Voltage Surge Suppressor (TVSS)
Instruction Bulletin
EFI Electronics Corporation
1751 South 4800 West • SLC, UT 84104
1-800-877-1174 • www.efinet.com
1230-1029A 03/03
Diagnostic Operation
•LED ON = Normal operation
(see Figure 4)
•LED OFF (one or more) = Fault.
Check phase voltage, circuit
breakers and connections.
If OK replace TVSS unit and all
associated fuses and fuseholders.
•If fuses open, replace TVSS unit
and all associated fuses and
fuseholders.
Figure 4: Dimensions
Dimensions: in.
[mm]
6.0
[152] 4.0
[102]
2.0
[51]
LED ON = OK
LED OFF = Fault
Figure 3: Diagnostic Operation
0.75 in. [19 mm] knockout (trade size)
Actual hole size 1.0 in. [25 mm]
Nut
Figure 2: Mounting Unit
N
OTE: The surge protective device must be
i
nstalled in an accessible location (not within walls).
General Specifications
Max Surge Current 80 kA/Phase
Short Circuit Current Rating 22 kA, 600 V Maximum
Housing Rating NEMA Type 1
Product Weight 3.05 lbs. (1.38 kg)
Connection Method Parallel, #10 AWG Stranded Wire
EMI/RFI Noise Rejection Up to -35 dB (T80W only)
Operating Temperature -40˚to +140˚F (-40˚to +60˚C)
Operating Frequency 50/60/400 Hz
Diagnostics Green Status LEDs
Product Standards to UL 1449-2nd Ed, CSA C22.2 No. 0-M91
INSTALLATION
1. Turn off all power supplying this equipment before working on or inside
enclosure containing this equipment.
2. See Figure 1, 2 for mounting instructions.
NOTE: The surge protective device must be installed in an accessible location
(not within walls).
3. Confirm the SPD is rated for your system by comparing voltage
measurements to the Line Voltage (L-L, L-N) on the product label.
4. Install in accordance with National and Local Electric Codes and match
branch circuit breakers to the size of wire being used (#10AWG, up to 30 A).
5. Confirm that the electrical terminals used to attach this device are
identified for these conductors.
6. Install class CC fuses (provided) into fuse holders, if they are not already
installed (See Figure 3). Do not substitute fuse, use only the provided
class CC 30 type fuses.
NOTE: These protectors or fuses do not replace the need for branch circuit
protection as stated in step 4 above.
7. Twist conductors 1/2 turn or more for every 12 inches of length.
8. Keep conductor length as short as possible with no sharp bends.
9. Do not loop or coil wires. Be sure to maintain adequate wire bending space
per NFPA 70 2002 Edition, article 408.35.
10. Use on solidly grounded systems only.
11. Install cover and/or close door on equipment.
12. Apply power. If all three lights not on, go to diagnostic operation.
Figure 3: Connecting TVSS Unit to Fuse Holder
and Circuit Breaker
Fuse Holder Fuse Nipple
Line
TVSS Unit
(Load)
LOSS OF OVERVOLTAGE SURGE PROTECTION.
• Operation or opening of a provided CC fuse indicates a loss of protection in
the T80 product.
• Always replace the T80 product when replacing provided CC fuses.
Failure to follow these instructions can result in equipment damage.
CAUTION
Figure 5:
Figure 4:
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