With the 3EL5 surge arrester, Siemens’ many years of extensive experience
in the station class is now also available for the intermediate class. The 3EL5
is the first choice for all protection tasks with more demanding requirements
for arresters. These could involve the safety of nearby systems, for example,
or moisture ingress. The metal oxide blocks of the arrester are held in position by prestressed FRP rods, which prevent ejection of parts in the event
of an overvoltage.
At the same time, the electric arc can escape thanks to the flexible silicone
housing vulcanized directly onto the active part. As a result, there is no buildup of high pressure inside the arrester. The use of a special silicone as insulation also permanently prevents moisture from penetrating, and the silicone
sheathing retains its water- and dirt-repellent properties even after decades
of use. The arresters in this robust, reliable series are suitable for all applications up to 60 kV.
3 mounting holes bolt circle
7.87–10 in for grounded installation
(insulated installation on request)
Voltage per unit MCOV*)
1.7
1.6
3EL5 intermediate, no prior
duty, preheated to 60 °C
1.5
3EL5 intermediate, prior
duty, preheated to 60 °C
1.4
Installation and Grounding 3EL5
1.3
1.2
1.1
1
0.01
0.1
1
10
100
1000
10000
Time in seconds
*) Minimum guaranteed values, the specific values for TOV capability
can be found in the table on the back page.
The new intermediate class
from Siemens
3EL5 Surge Arresters
Power Transmission and Distribution
NEMA Flat terminal
Dutycycle
rating
MCOV
kV
kV
3
2.55
3EL5 003
-
0PB11 - 4YH
8.7
6.7
7.0
7.4
8.0
9.1
10.6
6.0
3.4
6
5.1
3EL5 006
-
0PB11 - 4YH
17.5
13.4
14.0
14.8
15.9
18.3
21.1
12.1
6.8
9
7.65
3EL5 009
-
0PB11 - 4YH
26.2
20.0
21.0
22.2
23.9
27.4
31.7
18.1
10
8.4
3EL5 010
-
0PB11 - 4YH
29.2
22.3
23.3
24.6
26.5
30.5
35.2
12
10.2
3EL5 012
-
0PC11 - 4YH
35.0
26.7
28.0
29.6
31.8
36.6
42.3
15
12.7
3EL5 015
-
0PD11 - 4YH
43.7
33.4
35.0
37.0
39.8
45.7
18
15.3
3EL5 018
-
0PD11 - 4YH
52.5
40.1
42.0
44.4
47.7
21
17
3EL5 021
-
0PE11 - 4YH
61.2
46.7
49.0
51.8
55.7
24
19.5
3EL5 024
-
0PE11 - 4YH
70.0
53.4
56.0
59.1
27
22
3EL5 027
-
0PF11 - 4YH
78.7
60.1
63.0
66.5
30
24.4
3EL5 030
-
0PH11 - 4YH
87.5
66.8
70.0
33
28
3EL5 033
-
0PH11 - 4YH
96.2
73.5
77.0
36
29
3EL5 036
-
0PH11 - 4YH
104.9
80.1
84.0
39
31.5
3EL5 039
-
0PH11 - 4YH
113.7
86.8
90.9
42
34
3EL5 042
-
0PH11 - 4YH
122.4
93.5
97.9
45
36.5
3EL5 045
-
0PK11 - 4YH
131.2
100.2
48
39
3EL5 048
-
0PK11 - 4YH
139.9
54
42
3EL5 054
-
0PK11 - 4YH
60
48
3EL5 060
-
0PK11 - 4YH
Arrester order number
TOV no prior
duty capability
Maximum discharge voltage
FOW
kV cr
1.5 kA
3 kA
5 kA
10 kA
20 kA
40 kA
500 A
for 1 s
8/20 µs 8/20 µs 8/20 µs 8/20 µs 8/20 µs 8/20 µs 45/90 µs
kV
kV cr
kV cr
kV cr
kV cr
kV cr
kV cr
kV cr
for 10
s kV
Energy
abCreep- Flashsorpage
over
tion
disdiscapa- tance tance
bility
BIL
DisDisSurge Surge tance
tance
ArArPhase- Phaserester rester
totoweight height Phase Ground
“A”
“B”
kJ
inch
inch
kV
lbs
inch
inch
inch
3.2
5.1
14.6
7.1
104
8.7
12.6
10.0
7.1
6.4
10.2
14.6
7.1
104
8.7
12.6
10.0
7.1
10.1
9.6
15.3
14.6
7.1
104
8.7
12.6
10.0
7.1
20.1
11.3
10.7
16.8
14.6
7.1
104
8.7
12.6
10.0
7.1
24.2
13.5
12.8
20.4
19.1
8.3
122
9.4
13.8
10.0
8.3
52.9
30.2
16.9
16.0
25.4
25.5
9.8
144
10.4
15.3
10.0
9.8
54.9
63.4
36.3
20.3
19.2
30.6
25.5
9.8
144
10.4
15.3
10.0
9.8
64.0
74.0
42.3
23.7
22.4
34.0
30.5
11.3
166
11.2
16.5
10.0
11.3
63.6
73.1
84.6
48.3
27.0
25.6
39.0
30.5
11.3
166
11.2
16.5
12.0
11.3
71.6
82.3
95.2
54.4
30.4
28.8
44.0
35.4
12.5
184
12.0
17.7
14.0
12.5
73.9
79.5
91.4
105.7
60.4
33.8
32.0
48.8
48.4
16.5
242
14.6
21.6
16.0
16.5
81.3
87.5
100.6
116.3
66.5
37.2
35.2
56.0
48.4
16.5
242
14.6
21.6
16.0
16.5
88.7
95.4
109.7
126.9
72.5
40.6
38.4
58.0
48.4
16.5
242
14.6
21.6
18.0
16.5
96.1
103.4
118.9
137.5
78.5
44.0
41.6
63.0
48.4
16.5
242
14.6
21.6
18.0
16.5
103.5
111.3
128.0
148.0
84.6
47.3
44.8
68.0
48.4
16.5
242
14.6
21.6
18.0
16.5
104.9
110.9
119.3
137.1
158.6
90.6
50.7
48.0
73.0
62.8
20.5
302
17.3
26.0
21.0
20.5
106.8
111.9
118.3
127.2
146.3
169.2
96.7
54.1
51.2
78.0
62.8
20.5
302
17.3
26.0
22.0
20.5
157.4
120.2
125.9
133.1
143.1
164.6
190.3
108.8
60.9
57.6
84.0
62.8
20.5
302
17.3
26.0
24.0
20.5
174.9
133.6
139.9
147.9
159.0
182.9
211.5
120.8
67.6
64.0
96.0
62.8
20.5
302
17.3
26.0
25.0
20.5
A
A
B
B
Three-phase installation – distances
Siemens Power Transmission
and Distribution Inc.
Arrester Products
444 Highway 49 S.
Richland MS 39218
Phone 601-932-9800
Fax
601-932-9911
Order No. E50001-U113-A364-X-US00
Printed in Germany
TH 263-070207 102387 PA 04070.35
www.usa.siemens.com/energy
www.siemens.com/arrester-download
The information in this document contains general descriptions of the technical options available, which do not always have to be present in individual cases.
The required features should therefore be specified in each individual case at the time of closing the contract.
B