BA Varistors - BA Series - High Energy Packaged Industrial Varistor

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Series: BA

BA Series - High Energy Packaged Industrial Varistor

The BA and BB Series transient surge suppressors are heavy-duty industrial metal-oxide varistors (MOV) designed to provide surge protection for motor controls and power supplies used in oil-drilling, mining, transportation equipment and other heavy industrial AC line applications.

These UL-recognized varistors have similar package construction but differ in size and ratings.
The BA modelsa are rated from 130 to 880V M(AC) .

Both the BA and BB Series feature improved creep and strike capability to minimize breakdown along the package surface. This package design provides both complete electrical isolation of the disk subassembly, and rigid terminals to insure secure wire contacts. Remove 'a package surface' second occurance.

See BA/BB Series Device Ratings and Specifications table for part number and brand information.

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	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
V131BA60	130	175	450	50000	200	184	228	340	[Check]	[Add]
V151BA60	150	200	530	50000	240	212	268	400	[Check]	[Add]
V251BA60	250	330	880	50000	390	354	429	620	[Check]	[Add]
V271BA60	275	369	950	50000	430	389	473	680	[Check]	[Add]
V321BA60	320	420	1100	50000	510	462	561	760	[Check]	[Add]
V421BA60	420	560	1500	70000	680	610	748	1060	[Check]	[Add]
V481BA60	480	640	1600	70000	750	670	825	1160	[Check]	[Add]
V511BA60	510	675	1800	70000	820	735	910	1300	[Check]	[Add]
V571BA60	575	730	2100	70000	910	805	1000	1420	[Check]	[Add]
V661BA60	660	850	2300	70000	1050	940	1160	1640	[Check]	[Add]
V751BA60	750	970	2600	70000	1200	1080	1320	1880	[Check]	[Add]
V881BA60	880	1150	3200	70000	1500	1290	1650	2340	[Check]	[Add]

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Technical Resources

Application Notes

Plant Certifications

PSPICE Models

Environmental Data

Environmental Info

RoHS Date: 2008-01-01 00:00:00
ICP Test Reports
ICPTest BA-BB Series 12-20-2011.pdf
ICPTest BABB Series 10-10-2010.pdf
China RoHS Reports
ChinaRoHS BA-BB Series.pdf

	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 (209 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 (2,930 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 (279 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 (356 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 (443 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 (597 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 (773 K)
	Dongguan, BeiCe ISO TS16949 Littelfuse_Dongguan-BeiCe-MOV_ISO-TS16949.pdf (400 K)

	Graphical Symbol File - BA Series Varistors (V571BA60, V661BA60) baseries.slb (1 K)
	Library File - BA Series Varistors (V571BA60, V661BA60 baseries.lib (1 K)