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Wortai 21kv 10ka Metal Oxide Varistor MOV Lightning Arresters with NEMA Bracket

Price $35.00
Min Order 50 Pieces
Availability In Stock
Shipping From Zhejiang, China
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Model NO.:
WTSA
Type:
Power Source Arrester
Structure:
Zinc Oxide Arrester
Installation:
Parallel Arrester
Application:
AC/DC System
Size:
Meidum
Operation Voltage:
High Voltage
Material:
ZnO
Certification:
ISO9001
Name:
Polymer Arrester
Voltage Class:
21kv
Nominal Discharge Current:
5ka and 10ka
Color:
Gray or Brown
Trademark:
WORTAI or OEM
Transport Package:
3PCS Individual Cartons Per 1 Big Carton + Pallet
Specification:
Pallet dimension 110x110x210
Origin:
Wenzhou, China
HS Code:
8535400000
Product Description

Metal Oxide Surge Arrester Without Gaps 21kV 10kA
Item
Characteristics
Unit
Value
1
Rated Voltage(Ur)
kV
21
2
MCOV (Uc)
kV
17
3
Nominal Discharge Current(In)
kA
10
4
Rated Frequency
Hz
48 - 62
5
Long Duration Current Impulse 2000 m Sec
A
250
6
High Current Impulse 4/10 m Sec (Imax)
kA
100
7
Maximum Residual Voltage at
Nominal Discharge Current (Ures)
kV
63
8
Creepage Distance
mm
755
9
Pressure relief capability
/
20kA
10
IEC Line Discharge
/
1
 
Production Description

M.V. Surge Arresters are used to protect transformers and other equipments in station and distribution systems against the damage
by atmospheric (especially lightning effects) and operational conditions.Metal oxides surge arresters without gaps are designed to
prevent probable damages in the case of typical surges in energy systems while it has no negative effect on energy systems in
normal operation voltage. This special feature of gapless arresters originating from non-linear characteristics of metal-oxide
varistors between voltage and current scales. The non-linear feature is much higher compared to SiC surge arresters.

*Standard: IEC60099-4 / IEEE C62.11
*Type: ZnO, Gapless, Polymer housing, use for distribution overhead line
* Rated Voltage(Ur): 3kV - 36kV
* Nominal Discharge Current(In): 5kA or 10kA
* Long Duration Current Impulse: 150A or 250A
* High Current Impulse(Imax): 65kA or 100kA
* Pressure relief capability: 16kA or 20kA
* Creepage distance: ≥31mm/kV

Product Paramenters
Heavy duty -10kA Serie


Arrester
type

Rated voltage 
Ur (kV
Max. continues 
operating voltage
 
Residual Voltage (kV)
as per IEC
as per ANSI/IEEE

1/10 μs Steep current impuse

1/10 μs Steep current impuse

30/60μs Switching current impulse
Uc (kV)
MCOV (kV)
YH10W-3/9
3
2.4
2.55
11.3
9
8.9
YH10W-6/18
6
4.8
5.1
20.5
18
16
YH10W-9/27
9
7.2
7.65
31
27
24
YH10W-10/30
10
8.0
9.3
34.1
30
26.6
YH10W-11/33
11
8.8
9.35
38
33
29
YH10W-12/36
12
9.6
10.2
41.5
36
30.6
YH10W-15/45
15
12.0
12.7
52
45
38.3
YH10W-18/54
18
14.4
15.3
62
54
46
YH10W-21/63
21
16.8
17
72.5
63
53.5
YH10W-24/72
24
19.2
19.5
82.5
72
61.2
YH10W-27/81
27
21.6
22
93.2
81
69
YH10W-30/90
30
24.0
24.4
104
90
80
YH10W-33/99
33
26.4
28.0
113.8
99
84.2
YH10W-36/108
36
28.8
29.0
124.2
108
91.8
Normal duty - 5kA Series


Arrester 
type

Rated voltage 
Ur (kV
Max. continues 
operating voltage

Residual Voltage (kV)
as per IEC
as per ANSI/IEEE
1/10 μs Steep current impuse
1/10 μs Steep current impuse
30/60μs Switching current impulse
Uc (kV)
MCOV (kV)
YH5W-3/9
3
2.4
2.55
11.3
9
8.9
YH5W-6/18
6
4.8
5.1
20.5
18
16
YH5W-9/27
9
7.2
7.65
31
27
24
YH5W-10/30
10
8.0
9.3
34.1
30
26.6
YH5W-11/33
11
8.8
9.35
38
33
29
YH5W-12/36
12
9.6
10.2
41.5
36
30.6
YH5W-15/45
15
12.0
12.7
52
45
38.3
YH5W-18/54
18
14.4
15.3
62
54
46
YH5W-21/63
21
16.8
17
72.5
63
53.5
YH5W-24/72
24
19.2
19.5
82.5
72
61.2
YH5W-27/81
27
21.6
22
93.2
81
69
YH5W-30/90
30
24.0
24.4
104
90
80
YH5W-33/99
33
26.4
28.0
113.8
99
84.2
YH5W-36/108
36
28.8
29.0
124.2
108
91.8
 
Test and Inspection Equipments
Packing and Delivery
Certifications
WORTAI Album
Why Choose WORTAI
* More than 20 years manufacturing experience in electric power industry
* Top quality products, ISO9001, ISO14001, KEMA, CNAS certificates
* Custom tailored products, OEM & ODM are welcome
* Challenging prices for giving customers the greatest benefits
* Fast response time, we promise to reply customer's email within 24 hours
* Attractive lead times, plenty of equipments and workers to ensure the delivery on time
* Top skilled technicians
* Flexibility

WORTAI have been sold to over 20 countries and regions, spread all over Asia, Africa,
Middle & South America, Middle East and Europe, we also has done OEM service for some world famous brands.Choosing WORTAI means
being one step ahead of the general development. We look forward to a closer relationship and mutually beneficial cooperation with
any prospective customers in the near future. WORTAI will work with you shoulder-to-shoulder to satisfy your needs.
With competitive price, good quality and best service, WORTAI will be your most wise choice. Together we're winners! Let's do it right now!
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