MOV Metal Oxide Varistor for surge protective device SPD – LSP strategic cooperation with LKD


In order to improve product quality, participate in international competition, enhance product brand power, LSP strategic cooperation with LKD in June 2020. MOV Metal Oxide Varistor for surge protective device SPD

LSP strategic cooperation with LKD for Metal Oxide Varistor

LKD provided varistors for many international SPD brands, such as Phoenix, Citel, Hakel, Saltek, Cirprotec – CPT (Mersen), J.Proepster, Leutron etc. LKD was almost TOP 3 in the world which MOV Metal Oxide Varistor for surge protective device SPD. LKD Varistor, MOV, metal oxide varistor, ZOV, zinc oxide varistor for surge protective device, surge protector, surge arrester; LKD, CSD, ZIVIC Varistor.

LKD varistor MOV metal oxide varistor pic2

Company profile of Longke Electronic Co., Ltd

Longke Electronic Co., Ltd. – www.longkespd.com
Longke Varistor, Long Ke Defense – LKD – www.lkd-mov.com
Established in April 2003, Longke Electronic (Huiyang) Co., Ltd. (hereinafter referred to as the “LKD”) is specialized in R&D, production, and sales of special MOV Metal Oxide Varistor for surge protective device SPD. The company is a six-floor office building covering more than 8000m2 and has about 300 employees currently.
LKD has first-class scientific research skills, a professional team, and management talents. Our products own several technical patents. Owning the UL witness laboratory (WTDP), a set of introduced advanced manufacturing equipment, LKD adopts advanced varistor manufacturing technology. LKD wins customers’ appreciation with its high-quality and stable product and good after-sales service, which makes its products sold at home and abroad.
In order to improve the management level, meet the requirements of the market and customers, LKD has passed many product approvals: UL (1449 3rd Edition), CUL and the Management System Certifications: ISO 9001: 2008, ISO 14001: 2004, and QC 08000.
Main products: Varistor (SPD finished products), Surge Protective Ceramics (SPD), Contact Terminals Ceramics (SPD) and Silica Gel finished products, Fastening Varistor (semi-finished and finished products).
The contents of products: LKD dominates in producing Zinc oxide varistor (SPD) and has its own brand LKD sold in the market. The company produces a whole series of finished products and semi-products, whose specification is from 21S to 41S (21S, 31S, 34S, 41S), 25D to 60D (25D, 32D, 40D, 53D, 60D) and voltage from 18V to 1800V.
LKD supplies products to professional lightning manufacturers and customers from all walks of life.

LKD varistor MOV metal oxide varistor pic1

Company profile of Chenshuo Electronic Co. Ltd.

Chenshuo Electronic Co. Ltd. – CSD – www.cs-mov.com
Established in April 2015, Chenshuo Electronic (Jiujiang) CO., Ltd (hereinafter referred to as the “CSD”),is specialized in the R&D, production, and sales of special MOV Metal Oxide Varistor for surge protective device SPD.
CSD has first-class scientific research skills, professional team, and management talents, its products own several technical patents. Owning the UL witness laboratory (WTDP), a set of imported advanced manufacturing equipment, CSD adapts advanced varistor manufacturing technology. CSD wins the customers’ appreciation with quality and stable products and good after-sales service, which makes its products sold at home and abroad.
To improve the management level adapts the market and meets the requirement of customers, CSD has passed many product patents: UL(1449 3rd Edition)、CUL. Patent for management system: ISO 9001:2008,ISO 14001:2004,QC 080000.
CSD dominates in producing Zinc oxide varistor (SPD) and the conventional varistor which will be sold in the market as its own brand LKD/CS, the company produces a whole series of finished products and semi-products, whose specification is from 07D to 20D (07D, 10D, 14D, 18D, 20D), 17S to 41S (17S, 19S, 22S, 31S, 34S, 41S), 25D to 60D (25D, 32D, 40D, 53D, 60D) and voltage from 18V to 1800V. CSD supplies products to professional lightning manufacturers and customers from all walks of life.

How to select suitable MOV Metal Oxide Varistor for surge protective device SPD for our AC and PV surge protective device SPD, here it is list as below:

SLP40-275,-FLP7-275,-FLP12

Long Ke Defense

LKD 34RxxxK-1C2 specification – in parallel

Model   NumberMaximumVaristor VoltageClampingRated

voltage

8/20μs

Peak Current

10/350μs

Current

MaximumTypical
AllowablevoltageEnergyCapacitance
Voltage(max.)(Joule)(Reference)
NormalAC.RmsDCV1.0mA (V)VCIPreferenceIn. 10 timesIMaxIpeak10/1000@ 1KHz
(V)(V)min.max.(V)(A)(V)(kA)kAμs(pf)
34R241K-1150200222270395300AC 125408015.04805650
34R271K-11802252563104553005405100
34R301K-11902502703305003006004510
34R331K-1210275297363550300AC 250 Y Connect6564150
34R361K-12303003243965953007453750
34R391K-12503203624406503008303500
34R431K-12753503874737103009202950
34R471K-130038542351777530010002880
34R511K-1320415459561845300AC 25010602650
34R561K-1350460504616925300408012.511502450
34R621K-1385505558682102530012502200
34R681K-14205606127481120300408010.012502000
34R711K-1440585644786118030012801950
34R751K-1460615675825124030040807.512801820
34R781K-1485640702858129030013501750

34R431K-1C2 for T1+T2 AC SPD FLP25-275 seriesLKD varistor 34R431K-1C2 for T1+T2 AC Lightning Current Surge Arrester SPD FLP25-275

Long Ke Defense

LKD 48SxxxK-1, 54SxxxK-1 specification

Model   NumberMaximumVaristor VoltageClampingRated voltage8/20μs

Peak Current

10/350μsMaximumTypical
AllowablevoltageEnergyCapacitance
Voltage(max.)(Joule)(Reference)
Normal  TypeAC. RmsDCV1.0mA (V)VCIPreferenceInIMaxIimp10/1000@ 1KHz
(V)(V)min.max.(V)(A)(V)kAkAkAμs(pf)
48S241K-1150200216264395400AC125256012.512009375
48S431K-1275350410496710400AC 25023004900
48S511K-132041545956184540011.526504400
48S621K-1385505558682102540011.031003650
48S711K-1440585644786118040010.031503170
48S821K-15106707389021355400AC 380

or G

25607.534502700
48S911K-15507458191001150040036502500
48S951K-15757608551045157040025606.538002400
48S102K-162582590011001650400PV40002280
48S112K-16808959901210181540042002050
48S951K-55757608551045157040025605.238002400
48S102K-562582590011001650400PV40002280
48S112K-56808959901210181540042002050
54S241K-1150200216264395400AC125306012.512009375
54S431K-1275350410496710400AC 25023004900
54S511K-132041545956184540026504400
54S621K-1385505558682102540031003650
55S711K-1440585644786118040011.531503170
54S821K-15106707389021355400AC 380

or G

3060834502700
54S911K-15507458191001150040036502500
54S951K-1575760855104515704002560738002400
54S102K-162582590011001650400PV40002280
54S112K-16808959901210181540042002050
54S951K-6575760855104515704002560638002400
54S102K-662582590011001650400PV40002280
54S112K-66808959901210181540042002050

48S431K-1 for T1+T2 AC SPD FLP12,5-275 series (also called 54S431K-1)

Long Ke Defense

LKD 34SxxxK-1 specification

Model   NumberMaximumVaristor VoltageClampingRated voltage8/20μs Peak Current10/350μs

Current

MaximumTypical
AllowablevoltageEnergyCapacitance
Voltage(max.)(Joule)(Reference)
NormalAC.RmsDCV1.0mA (V)VCIPreferenceIn

10 times

IMaxIpeak10/1000@ 1KHz
(V)(V)min.max.(V)(A)(V)(kA)kAμs(pf)
34S241K-1150200222270395300AC 125204084805650
34S271K-11802252563104553005405100
34S301K-11902502703305003006004510
34S331K-1210275297363550300AC 250 Y Connect6564150
34S361K-12303003243965953007453750
34S391K-12503203624406503008303500
34S431K-12753503874737103009202950
34S471K-130038542351777530010002880
34S511K-1320415459561845300AC 25010602650
34S561K-135046050461692530020407.011502450
34S621K-1385505558682102530012502200
34S681K-1420560612748112030020406.2512502000
34S711K-1440585644786118030012801950
34S751K-5460615675825124030020405.512801820
34S781K-1485640702858129030013501750
34S821K-15106707389021355300AC 380     or G or PV5.013951650
34S911K-1550745819100115003004.515501490
34S951K-3575760855104515703003.514851430
34S102K-36258259001100165030015501350
34S112K-36808959901210181530017001230

34S431K-1 for T1+T2 AC SPD FLP7-275 series

Long Ke Defense

LKD 34SxxxK specification

Model   NumberMaximumVaristor VoltageClampingRated voltage8/20μs Peak CurrentMaximumTypical
AllowablevoltageEnergyCapacitance
Voltage(max.)(Joule)(Reference)
NormalAC.RmsDCV1.0mA (V)VCIPreferenceIn

10 times

IMax10/1000@ 1KHz
(V)(V)min.max.(V)(A)(V)(kA)μs(pf)
34S470K303842529360DC 2410209635000
34S560K354550631106011529500
34S680K405661751356013624200
34S820K50657490135300DC 4815617950
34S101K608590110165300205019515000
34S121K75100108132200300DC 6023512200
34S151K9512513516525030029610000
34S181K115150162198300300AC 1003508250
34S201K130170185225340300AC 1254006750
34S221K1401801982423603004506400
34S241K1502002222703953004805650
34S271K1802252563104553005405100
34S301K1902502703305003006004510
34S331K210275297363550300AC 250

Telephone

test

6564150
34S361K2303003243965953007453750
34S391K25032036244065030020508303500
34S431K275350387473710300AC 2509202950
34S471K30038542351777530010002880
34S511K32041545956184530010602650
34S561K35046050461692530011502450
34S621K385505558682102530012502200
34S681K420560612748112030012502000
34S711K440585644786118030012801950
34S751K4606156758251240300204512801820
34S781K485640702858129030013501750
34S821K5106707389021355300AC 380

or G

13951650
34S911K5507458191001150030014751500
34S951K5757608551045157030014851430
34S102K6258259001100165030015501350
34S112K6808959901210181530017001230
34S122K75098011501320198030017501135
34S142K850112013151540231030015401750970
34S162K100013201550176026403002000840
34S182K110014851700198029703002000800

T2 AC Surge Protective Device SPD SLP40-275-0 34S431K for T2 AC SPD SLP40-275 seriesLKD varistor 34S431K for T2 AC Surge Suppressor SPD SLP40-275

Long Ke Defense

LKD 25DxxxK specification

Model Number Ф 24.75mmMaximum

Allowable

Voltage

Varistor VoltageClamping

Voltage

(max.)

Rated voltage8/20μs Peak CurrentMaximum

Energy

(Joule)

Typical

Capacitance

(Reference)

NormalAC. RmsDCV1.0mA ( V )VCIPreferenceIn

10 times

IMax10/1000@ 1KHz
(V)(V)min.max.(V)(A)(V)(A)μs(pf)
25D820K50657490135150DC 481020807700
25D101K6085901101651501006300
25D121K75100108132200150DC 601205200
25D151K951251351652501501604300
25D181K115150162198300150AC 1001753500
25D201K130170185225340150AC 1251903200
25D221K1401801982423601502002900
25D241K1502002162643951502202650
25D271K1752252432974551502552400
25D301K1902502703305001502752100
25D331K210275297363550150AC 250

Telephone

test

3001900
25D361K2303003243965951503301750
25D391K2503203514296501503601600
25D431K275350387473710150AC 2503801500
25D471K3003854235177751504001400
25D511K3204154595618451504201250
25D561K3504605046169251504401150
25D621K38550555868210251504501050
25D681K4205606127481120150460950
25D711K4405856447861180150485900
25D751K4606156758251240150918510850
25D781K4856407028581290150530800
25D821K5106707389021355150AC 380

or G

570750
25D911K55074581910011500150620700
25D102K62582590011001650150716685650
25D112K68089599012101815150770600
25D122K750990108013201980150770550
25D152K9251200135016502475150615870440
25D182K11001465162019802970150900370

25D431K for T2+T3 AC SPD SLP20-275 seriesLKD varistor 25D431KA for T2+T3 AC SPD SLP20-275

Long Ke Defense

LKD 48SxxxK-1, 54SxxxK-1 specification

Model   NumberMaximumVaristor VoltageClampingRated voltage8/20μs

Peak Current

10/350μsMaximumTypical
AllowablevoltageEnergyCapacitance
Voltage(max.)(Joule)(Reference)
Normal  TypeAC. RmsDCV1.0mA (V)VCIPreferenceInIMaxIimp10/1000@ 1KHz
(V)(V)min.max.(V)(A)(V)kAkAkAμs(pf)
48S241K-1150200216264395400AC125256012.512009375
48S431K-1275350410496710400AC 25023004900
48S511K-132041545956184540011.526504400
48S621K-1385505558682102540011.031003650
48S711K-1440585644786118040010.031503170
48S751K-14606156758251240400AC 380

or G

2560933002800
48S821K-151067073890213554007.534502700
48S911K-15507458191001150040036502500
48S951K-15757608551045157040025606.538002400
48S102K-162582590011001650400PV40002280
48S112K-16808959901210181540042002050
48S951K-55757608551045157040025605.238002400
48S102K-562582590011001650400PV40002280
48S112K-56808959901210181540042002050
54S241K-1150200216264395400AC125306012.512009375
54S431K-1275350410496710400AC 25023004900
54S511K-132041545956184540026504400
54S621K-1385505558682102540031003650
55S711K-1440585644786118040011.531503170
54S821K-15106707389021355400AC 380

or G

3060834502700
54S911K-15507458191001150040036502500
54S951K-1575760855104515704002560738002400
54S102K-162582590011001650400PV40002280
54S112K-16808959901210181540042002050
54S951K-6575760855104515704002560638002400
54S102K-662582590011001650400PV40002280
54S112K-66808959901210181540042002050

48S711K-1 for T1+T2 PV SPD FLP-PV1500G-S (it’s two stacked vartisor, also called 48R711K-1)LKD varistor 54S711K for T1+T2 PV Surge Protector DC SPD FLP-PV1500G-S

LKD varistor 54S751K for T1+T2 PV Surge Protection Device DC SPD FLP-PV1000-S48S751K-1 for T1+T2 PV SPD FLP-PV1000-S

LKD varistor 54S911K for T1+T2 PV Surge Protection Device DC SPD FLP-PV1000G-S48S911K-1 for T1+T2 PV SPD FLP-PV1000G-S

48S102K-1 for T1+T2 PV SPD FLP-PV1500-SLKD varistor 54S102K for T1+T2 PV Surge Protective Device SPD FLP-PV1500-S

Long Ke Defense

LKD 34SxxxK specification

Model   NumberMaximumVaristor VoltageClampingRated voltage8/20μs Peak CurrentMaximumTypical
AllowablevoltageEnergyCapacitance
Voltage(max.)(Joule)(Reference)
NormalAC.RmsDCV1.0mA (V)VCIPreferenceIn

10 times

IMax10/1000@ 1KHz
(V)(V)min.max.(V)(A)(V)(kA)μs(pf)
34S470K303842529360DC 2410209635000
34S560K354550631106011529500
34S680K405661751356013624200
34S820K50657490135300DC 4815617950
34S101K608590110165300205019515000
34S121K75100108132200300DC 6023512200
34S151K9512513516525030029610000
34S181K115150162198300300AC 1003508250
34S201K130170185225340300AC 1254006750
34S221K1401801982423603004506400
34S241K1502002222703953004805650
34S271K1802252563104553005405100
34S301K1902502703305003006004510
34S331K210275297363550300AC 250

Telephone

test

6564150
34S361K2303003243965953007453750
34S391K25032036244065030020508303500
34S431K275350387473710300AC 2509202950
34S471K30038542351777530010002880
34S511K32041545956184530010602650
34S561K35046050461692530011502450
34S621K385505558682102530012502200
34S681K420560612748112030012502000
34S711K440585644786118030012801950
34S751K4606156758251240300204512801820
34S781K485640702858129030013501750
34S821K5106707389021355300AC 380

or G

13951650
34S911K5507458191001150030014751500
34S951K5757608551045157030014851430
34S102K6258259001100165030015501350
34S112K6808959901210181530017001230
34S122K75098011501320198030017501135
34S142K850112013151540231030015401750970
34S162K100013201550176026403002000840
34S182K110014851700198029703002000800

LKD varistor 34S112K for T2 PV SPD DC Surge Protective Device SLP-PV1500-S34S112K for T2 PV SPD SLP-PV1500-S

LKD varistor 34S821K for T2 PV Surge Protective Device SPD SLP-PV1000-S34S821K for T2 PV SPD SLP-PV1000-S

LKD varistor 34S821K for T2 PV Surge Protection Device SPD SLP-PV600-S34S821K for T2 PV SPD SLP-PV600-S

Wenzhou Arrester Electric Co., Ltd. (LSP) is a fully Chinese-owned manufacturer of AC&DC SPDs to a wide range of industries throughout the world.
LSP offers the following products and solutions:

1. AC surge protection device (SPD) for low-voltage power systems from 75Vac to 1000Vac (275Vac 280Vac 320Vac 385Vac 440Vac 690Vac…) according to IEC 61643-11:2011 and EN 61643-11:2012 (type test classification:

  • Type 1, T1, Class B, Class I (Iimp 10/350μs) 25kA
  • Type 1+2, T1+T2, Class B+C, Class I+II (Iimp 10/350μs and In 8/20μs) 12,5kA
  • Type 2, T2, Class C, Class II (In 8/20μs) 20kA, 40kA, 50kA, 60kA, 80kA, 100kA, 120kA, 160kA
  • Type 3, T3, Class D, Class III (Uoc 1.2/50μs) 6kV, 10kV, 20kV

2. DC surge protection device (PV SPD) for photovolatics from 500Vdc to 1500Vdc (500Vdc 600Vdc 1000Vdc 1200Vdc 1500Vdc) according to IEC 61643-31:2018 and EN 50539-11:2013 [EN 61643-31:2019] (type test classification: Type 1+2 [T1+T2, Class B+C, Class I+II], Type 2 [T2, Class C, Class II).

How to select the correct MOV Metal Oxide Varistor for surge protective device SPD, send us your inquiry.