HA - HA Series - High Energy Industrial Varistor Series

Series: HA Questions? Contact Littelfuse Support
HA
HA Series transient surge suppressors are industrial hgh energy metal-oxide varistors (MOVs). They are designed to provide secondary surge protection in the outdoor and servie entrance environment (distribution panels) of buildings, and also in industrial applications for motor controls and power supplies used in the oil-drilling, mining, and transportation fields.
  • The design of the HA Series of metal oxide varistors provide rigid terminals for screw mounting.
  • Also available in a clipped lead version for through hole board placement or to accommodate soldered leads-designation “HC”.

Access specifications, certifications, check availability and order parts below

Catalog #CertificatesSizeVMAX AC (V)VMAX DC (V)WTM (J)(ITM 1xAmps (A)VNDC
(V)
VNDC MIN
(V)
VNDC MAX (V)Vc (V)StockSamples
V102HA4040mm10001290100040000180090011002970CheckOrder
V111HA32CSA_2221 01091788icon32mm11014816025000173156190293CheckOrder
V111HA40CSA_2221 01091788iconul34mm11014822040000173156190288CheckOrder
V131HA32CSA_2221 01091788iconul32mm13017520025000200184228350CheckOrder
V131HA40CSA_2221 01091788iconul34mm13017527040000200184228345CheckOrder
V141HA32CSA_2221 01091788iconul32mm14018821025000220198248380CheckOrder
V141HA40CSA_2221 01091788iconul34mm14018829040000220198248375CheckOrder
V151HA32CSA_2221 01091788iconul32mm15020022025000240212268410CheckOrder
V151HA32X274932mm15020022025000240212268410CheckOrder
V151HA40CSA_2221 01091788iconul34mm15020030040000240212268405CheckOrder
V181HA32CSA_2221 01091788iconul32mm18024024025000282254310475CheckOrder
V181HA40CSA_2221 01091788iconul34mm18024033040000282254310468CheckOrder
V201HA32CSA_2221 01091788iconul32mm20026526025000314283345540CheckOrder
V201HA40CSA_2221 01091788iconul34mm20026535040000314283345533CheckOrder
V251HA32CSA_2221 01091788iconul32mm25033033025000390354429650CheckOrder
V251HA40CSA_2221 01091788iconul34mm25033037040000390354429630CheckOrder
V271HA32CSA_2221 01091788iconul32mm27536936025000430389473710CheckOrder
V271HA40CSA_2221 01091788iconul34mm27536940040000430389473690CheckOrder
V301HA32CSA_2221 01091788iconul32mm30041037025000478433526795CheckOrder
V301HA40CSA_2221 01091788iconul34mm30041043040000478433526780CheckOrder
V321HA32CSA_2221 01091788iconul32mm32042039025000510462561845CheckOrder
V321HA40CSA_2221 01091788iconul34mm32042046040000510462561825CheckOrder
V331HA32ul32mm33043538525000519467570860CheckOrder
V331HA40ul34mm33043547540000519467570843CheckOrder
V351HA32CSA_2221 01091788icon32mm35046039025000550495604910CheckOrder
V351HA40CSA_2221 01091788iconul34mm35046050040000550495604894CheckOrder
V391HA32CSA_2221 01091788iconul32mm385510395250006045456631020CheckOrder
V391HA40CSA_2221 01091788iconul34mm385510550400006045456631000CheckOrder
V421HA32CSA_2221 01091788iconul32mm420560400250006806107481120CheckOrder
V421HA40CSA_2221 01091788iconul34mm420560600400006806107481100CheckOrder
V441HA32CSA_2221 01091788iconul32mm440585420250006916227591200CheckOrder
V441HA40CSA_2221 01091788iconul34mm440585630400006916227591147CheckOrder
V481HA32CSA_2221 01091788iconul32mm480640450250007506708251290CheckOrder
V481HA40CSA_2221 01091788iconul34mm480640650400007506708251230CheckOrder
V511HA32CSA_2221 01091788iconul32mm510675500250008207359101355CheckOrder
V511HA40CSA_2221 01091788iconul34mm510675700400008207359101295CheckOrder
V551HA32CSA_2221 01091788iconul32mm550710530250008647789491515CheckOrder
V551HA40CSA_2221 01091788iconul34mm550710755400008647789491430CheckOrder
V571HA32CSA_2221 01091788iconul32mm5757305502500091080510001570CheckOrder
V571HA40CSA_2221 01091788iconul34mm5757307704000091080510001480CheckOrder
V661HA32CSA_2221 01091788iconul32mm66085060025000105094011601820CheckOrder
V661HA40CSA_2221 01091788iconul34mm66085090040000105094011601720CheckOrder
V681HA32CSA_2221 01091788iconul32mm68087561025000106896211731830CheckOrder
V681HA40CSA_2221 01091788iconul34mm68087592540000106896211731780CheckOrder
V751HA32CSA_2221 01091788iconul32mm750970700250001200108013202050CheckOrder
V751HA40CSA_2221 01091788iconul34mm7509701050400001200108013202000CheckOrder

pdf icon Varistors CH Datasheet

CH Series transient surge suppressors are small, metal-oxide varistors (MOVs) manufactured in leadless chip form...

an9311icon AN9311 The ABCs of MOVs

The material in this application guide has been arranged in 3 parts for easy reference; Section A provides general guidelines on what types of MOV products are best suited for particular environments. Section B explains what Metal Oxide Varistors are and the basic function they perform. And section C helps clarify important information about MOVs for the design engineer, and answers questions that are asked most often.

an9768icon AN9768 Transient Suppression Devices and Principles

This application note discusses the two major categories of transient suppressors: a) those that attenuate transients, thus preventing their propagation into the sensitive circuit; and b) those that divert transients away from sensitive loads and so limit the residual voltages.

an9769icon AN9769 An Overview of Electromagnetic and Lightning Induced Voltage Transients

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an9773icon AN9773 Varistor Testing

This application note details the common tests of varistor parameters and describes suitable test methods using simplified test circuits. All tests are performed at 25° C, unless otherwise specified. The test circuits and methods given are intended as a general guide. Since the tests frequently entail high voltages and currents, users must exercise appropriate safety precautions.

ec608icon EC608 Considerations for Selecting Littelfuse MOVs and Fuses for Industrial Motor Applications

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EC638icon EC638 Littelfuse Varistor Design Examples

This application note is a guide for selecting a varistor by describing common application examples, and illustrating the solution process to determine the appropriate varistor. The note also describes series/parallel connection rules.

EC640icon EC640 Combining GDTs and MOVs for Surge Protection of AC Lines

This application note illustrates how to design high performance, cost-effective surge protection for equipment connected to AC power lines. The role of gas discharge tube (GDT) surge arresters specifically designed for AC power line protection is also be discussed.

Littelfuse_app note_an9767icon AN9767 Littelfuse Varistors Basic Properties Terminology and Theory

This application note describes the basic properties of varistors. Varistors are voltage dependent, nonlinear devices which have an electrical behavior similar to back-to-back zener diodes. The symmetrical, sharp breakdown characteristics enable the varistor to provide excellent transient suppression performance.

Varistors HA SPICE Model slb

Littelfuse_Dongguan BeiCe MOV_ISO TS16949icon Dongguan BeiCe ISO TS16949

Littelfuse_Dongguan BeiCe MOV_ISO14001 2004icon Dongguan BeiCe ISO 14001 2004

MOV Factory

Littelfuse_Dongguan BeiCe MOV_ISO9001 2000icon Dongguan BeiCe ISO 9001 2000

MOV/MLV Factory