HA Varistors - HA Series - High Energy Industrial Varistor Series

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HA Series Data Sheet
Littelfuse_MOV_HA.pdf
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Last Uploaded: November 05, 2009

Series: HA

HA Series - High Energy Industrial Varistor Series

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”.

Electrical Characteristics

Access specifications, certifications, check availability and order parts below:

Check distributor stock availability by clicking on the [CHECK] link. View certification PDF files by clicking on the certification logo. View the part details by clicking on the part number. To order sample parts, click on the [ADD] link. Click on the 'Key' button to view definitions for each column header. Sort parts by clicking on the column you wish to sort by.

CatalogNo	Size	V_MAX AC (V)	V_MAX DC (V)	W_TM (J)	(I_TM 1xAmps (A)	V_NDC (V)	V_NDC MIN (V)	V_NDC MAX (V)	V_c (V)	Stock	Sample Cart
V111HA32	32mm	110	148	160	25000	173	156	190	293	[Check]	[Add]
V111HA40	34mm	110	148	220	40000	173	156	190	288	[Check]	[Add]
V131HA32	32mm	130	175	200	25000	200	184	228	350	[Check]	[Add]
V131HA40	34mm	130	175	270	40000	200	184	228	345	[Check]	[Add]
V141HA32	32mm	140	188	210	25000	220	198	248	380	[Check]	[Add]
V141HA40	34mm	140	188	290	40000	220	198	248	375	[Check]	[Add]
V151HA32	32mm	150	200	220	25000	240	212	268	410	[Check]	[Add]
V151HA40	34mm	150	200	300	40000	240	212	268	405	[Check]	[Add]
V181HA32	32mm	180	240	240	25000	282	254	310	475	[Check]	[Add]
V181HA40	34mm	180	240	330	40000	282	254	310	468	[Check]	[Add]
V201HA32	32mm	200	265	260	25000	314	283	345	540	[Check]	[Add]
V201HA40	34mm	200	265	350	40000	314	283	345	533	[Check]	[Add]
V251HA32	32mm	250	330	330	25000	390	354	429	650	[Check]	[Add]
V251HA40	34mm	250	330	370	40000	390	354	429	630	[Check]	[Add]
V271HA32	32mm	275	369	360	25000	430	389	473	710	[Check]	[Add]
V271HA40	34mm	275	369	400	40000	430	389	473	690	[Check]	[Add]
V301HA32	32mm	300	410	370	25000	478	433	526	795	[Check]	[Add]
V301HA40	34mm	300	410	430	40000	478	433	526	780	[Check]	[Add]
V321HA32	32mm	320	420	390	25000	510	462	561	845	[Check]	[Add]
V321HA40	34mm	320	420	460	40000	510	462	561	825	[Check]	[Add]
V331HA32	32mm	330	435	385	25000	519	467	570	860	[Check]	[Add]
V331HA40	34mm	330	435	475	40000	519	467	570	843	[Check]	[Add]
V351HA32	32mm	350	460	390	25000	550	495	604	910	[Check]	[Add]
V351HA40	34mm	350	460	500	40000	550	495	604	894	[Check]	[Add]
V391HA32	32mm	385	510	395	25000	604	545	663	1020	[Check]	[Add]
V391HA40	34mm	385	510	550	40000	604	545	663	1000	[Check]	[Add]
V421HA32	32mm	420	560	400	25000	680	610	748	1120	[Check]	[Add]
V421HA40	34mm	420	560	600	40000	680	610	748	1100	[Check]	[Add]
V441HA32	32mm	440	585	420	25000	691	622	759	1200	[Check]	[Add]
V441HA40	34mm	440	585	630	40000	691	622	759	1147	[Check]	[Add]
V481HA32	32mm	480	640	450	25000	750	670	825	1290	[Check]	[Add]
V481HA40	34mm	480	640	650	40000	750	670	825	1230	[Check]	[Add]
V511HA32	32mm	510	675	500	25000	820	735	910	1355	[Check]	[Add]
V511HA40	34mm	510	675	700	40000	820	735	910	1295	[Check]	[Add]
V551HA32	32mm	550	710	530	25000	864	778	949	1515	[Check]	[Add]
V551HA40	34mm	550	710	755	40000	864	778	949	1430	[Check]	[Add]
V571HA32	32mm	575	730	550	25000	910	805	1000	1570	[Check]	[Add]
V571HA40	34mm	575	730	770	40000	910	805	1000	1480	[Check]	[Add]
V661HA32	32mm	660	850	600	25000	1050	940	1160	1820	[Check]	[Add]
V661HA40	34mm	660	850	900	40000	1050	940	1160	1720	[Check]	[Add]
V681HA32	32mm	680	875	610	25000	1068	962	1173	1830	[Check]	[Add]
V681HA40	34mm	680	875	925	40000	1068	962	1173	1780	[Check]	[Add]
V751HA32	32mm	750	970	700	25000	1200	1080	1320	2050	[Check]	[Add]
V751HA40	34mm	750	970	1050	40000	1200	1080	1320	2000	[Check]	[Add]

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Technical Resources

Application Notes

Plant Certifications

PSPICE Models

HA Series Graphical Symbol File
haseries.slb (13 K)

HA Series Library File
haseries.lib (4 K)

	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. an9311.pdf (67 K)
	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. Littelfuse_app-note_an9767.pdf (1,094 K)
	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. an9768.pdf (125 K)
	AN9769 - An Overview of Electromagnetic and Lightning Induced Voltage Transients This application note is an overview of the sources and nature of various transient overvoltages, and the problems that may result. an9769.pdf (180 K)
	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. an9773.pdf (274 K)
	EC608 - Considerations for Selecting Littelfuse MOVs and Fuses for Industrial Motor Applications This application note discusses the first level considerations for applying both Littelfuse Industrial AC Line Metal Oxide Varistors and associated AC line Fuses with a motor protection example. ec608.pdf (171 K)
	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. EC638.pdf (356 K)
	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. EC640.pdf (158 K)

	Dongguan, BeiCe ISO 14001-2004 MOV Factory Littelfuse_Dongguan-BeiCe-MOV_ISO14001-2004.pdf (103 K)
	Dongguan, BeiCe ISO 9001-2000 MOV/MLV Factory Littelfuse_Dongguan-BeiCe-MOV_ISO9001-2000.pdf (339 K)
	Dongguan, BeiCe ISO TS16949 Littelfuse_Dongguan-BeiCe-MOV_ISO-TS16949.pdf (209 K)

	HA Series Graphical Symbol File haseries.slb (13 K)
	HA Series Library File haseries.lib (4 K)

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Electrical Characteristics

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