EVTD – EV S
EriES
V
ariSTor
(T
hErmal
D
iSconnEcT
)
EVTD Technology (Thermally Protected Varistor)
Features
•
•
•
•
•
•
•
•
High energy handling capability
Wide voltage range available: 50VAC – 550VAC
Multiple diagnostic options (micro-switch locations both on top & bottom,
on top only or on bottom only)
Industry standard footprint
UL1449 and CUL 3rd Edition recognized. File #E321567*. All values presently recognized except EVTD34V300K
and micro-switch location option “C” (in position (6) see below Part Numbering System), which is pending.
RoHS compliant
Exceeds industry standard operating and storage temperatures for this type of device.
Rated at -40ºC to +85º.
Patent Pending. Except for option “C”, which is pending. (See below in position (6) Part Numbering System).
Part Numbering System
EVTD 34
(1)
(2) (3)
(1) Series
EVTD=
EV Series Varistor TD Thermal Disconnect
(2) Disk Size
34 = 34mm
(3) Type
V = High Current EV Varistor Series
(4) AC RMS Voltage Rating
50 = 50VAC
(5) Tolerance
K = ±10%
–––– –– –– –– –– –– –– ––
(4)
(5)
(6)
(7)
(8)
(6) Micro-switch Location Option
Nil = Top and Bottom
A = Top only
B = Bottom only
C = Top center only
(7) Micro-switch Lead Length Option
(for “C” location only)
Nil = Standard Long Lead (11mm ± 1mm)
S = Short Lead (5mm ± 0.5mm)
(8) Micro-switch Function Option
Nil = Normally Open
C = Normally Closed
V
50 K
A
S
C
*NOTE: Recognized and Approved to UL1449 as a 4 surge protective device component assembly for type 2
applications, and not listed as a Surge Protective Device (this is pending).
EVTD’s are intended, in conjunction with appropriate enclosure design, to help facilitate TVSS module compliance
to UL1449. Under extreme abnormal over-voltage conditions, some units will exhibit substantial heating, arcing and
venting prior to opening. Modules should be designed to contain this possibility.
World Products, LLC
19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com
2 | EVTD – EV Series Varistor (Thermal Disconnect)
Rev. 2.0
EVTD – EV S
EriES
V
ariSTor
(T
hErmal
D
iSconnEcT
)
EVTD Series — Electrical Characteristics
Part
Number
Maximum Continuous
Rated Voltage
AC RMS
Volts
DC
Volts
Min
Volts
Varistor Voltage
@1.0 mA (DC)
Nominal
Max
Volts
Maximum Clamping
Voltage
VC
(Volts)
IP
(Amps)
Maximum Peak
Current
(8/20µs KA)
15 pulses*
1 pulse
Maximum
Energy
10/1000µs
(joule)
EVTD34V50K
EVTD34V60K
EVTD34V75K
EVTD34V150K
EVTD34V180K
EVTD34V250K
EVTD34V275K
EVTD34V300K
EVTD34V320K
EVTD34V385K
EVTD34V420K
EVTD34V460K
EVTD34V510K
EVTD34V550K
50
60
75
150
180
250
275
300
320
385
420
460
510
550
65
85
100
200
230
320
350
385
415
505
560
615
670
745
74
90
108
222
256
371
410
423
459
558
612
675
738
819
82
100
120
246
283
410
453
471
510
620
680
750
820
910
90
110
132
270
310
449
496
517
561
682
748
825
902
1001
135
165
200
395
470
650
710
775
845
1025
1120
1240
1355
1500
300
300
300
300
300
300
300
300
300
300
300
300
300
300
20
20
20
20
20
20
20
20
20
20
20
20
20
20
45
45
45
50
50
50
50
50
50
50
50
50
50
50
156
195
235
480
540
830
920
1000
1060
1250
1250
1280
1395
1475
*I(n) sequencing according to UL1449 3rd Edition.
Micro-switch Location Options “A” & “B” Only.
Micro-switch (TOP)
3.9
Micro-switch (BOTTOM)
3
4.25
5
2
5
25.5
1
11.25
3.9
3
2
1
3.15
8.7
5
5
9.4
*
1
COM
2
NO
3
NC
*
1
COM
2
NO
3
NC
*NOTE: Micro-switches are
intended for monitoring of the
internal thermal disconnect.
Micro-switches are rated
at 125VAC 1A max.
Dimensions (mm)
L
W
W1
T
F
L1
43.9
42.8
41
16
17.8
2.5 ± 0.5
1.2 ± 0.5
L1
40.2
.89 ± .05
5 5
2.7 ± 0.5
12.1
(nom)
0.4 (nom)
25.5
W1
L
T
Note:
Tolerance for all dimensions
are +/- 1mm unless otherwise
noted.
0.5 ± .05
3.9 ± 0.5
F
W
3.15 ± 0.5
9.7
12
7
3.0 ± 0.5
World Products, LLC
19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com
9.7
12.9
EVTD – EV Series Varistor (Thermal Disconnect) | 3
Rev. 2.0
EVTD – EV S
EriES
V
ariSTor
(T
hErmal
D
iSconnEcT
)
Micro-switch Location Option “C” Only.
5.85
Ø1.0
18.86
5.08
11*
5.85
40.2
16
EVTD34VXXK
2.5
1.2
15.8
43.9
7
0.5
3.15
9.7
12
25.5
42.8
NOTE: Dimensions (mm),
tolerances are ± 1mm unless
otherwise noted.
“Part Numbering System for suffix
code.
*
Also available 5mm ± 0.5mm. See
World Products, LLC
19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com
4 | EVTD – EV Series Varistor (Thermal Disconnect)
Rev. 2.0
京公网安备 11010802033920号
EEWORLD
