Littelfuse TCMOV Varistor Series Manuel d'utilisateur télécharger pdf

231

Revised: January 16, 2014

Varistor Products

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/tcmov34s.html for current information.

TCMOV Varistor Series

Thermally Protected Varistors > TCMOV Series

Hi–EnErgy MoV’s

TCMOV Series

Description

The Littelfuse TCMOV is a thermally self protected device. It

consists of a 34mm varistor with an integral thermal disconnect

system designed to open in the event of overheating due to

abnormal over-voltage conditions, outlined in UL 1449. The TCMOV

helps facilitate SPD module compliance to UL1449 for type 1 and

type 2 applications.

The device integrates a micro-switch which is triggered by a

mechanical structure that makes the indicator circuit isolated from

the main power. If the device disconnects from the system power

the switch will change status. These features simplify the design

and save cost for the customer.

The TCMOV devices offer quick thermal response due to the close

proximity of the integrated thermal element to central section of

the MOV body. This conﬁguration also offers lower inductance

than most discreet solutions resulting in improved clamping

performance to fast over-voltage transients.

Features

• Maximumsinglesurge

capability up to 50kA,

8/20 waveshape.

• NominalDischarge

Current Value: 20kA.

• SCCR:200kA

• Integratedmicro-switch

for indication

circuitry/design.

• Designedtofacilitate

compliance to UL1449

for Type 1 and Type 2

SPD application.

• -45°Cto+75°Coperating

temperature.

• RecognizedtoUL

1449 3rd edition.

• RoHScompliant.

Applications

RoHS

• SPDapplications

• AC/DCpower

distribution systems

• Highvoltage

power supplies

• Photovoltaicsystems

• Windpowersystems

• Telecommunication

systems

• PLCApplications

• PowerTransferSwitch

• Inverter

• UPS

TCMOV Varistor Series

Agency Approvals

Agency Agency File Number

E320116

Absolute Maximum Ratings

•Forratingsofindividualmembersofaseries,seeDeviceRatingsandSpecicationschart

Contact your Littelfuse product representative for additional information.

CAUTION:Stressesabovethoselistedin“AbsoluteMaximumRatings”maycausepermanentdamagetothedevice.Thisisastressonlyratingandoperation

of the device at these or any other conditions above those indicated in the operational sections of this speciﬁcation is not implied.

TCMOV Series Units

Continous:

Steady State Applied Voltage:

 DCVoltageRange(VM(DC)) 150to700 V

 ACVoltageRange(V

M(AC)RMS

) 115 to 550 V

Transient:

 Non-RepetitiveSurgeCurrent,8/20µsWaveform(I

) up to 50,000 A

 Non-RepetitiveEnergyCapability,2msWaveform(W

) 280 to 960 J

OperatingAmbientTemperatureRange(T

) -45to+75 °C

StorageTemperatureRange(T

STG

) -45to+85 °C

TemperatureCoefficient(αV)ofClampingVoltage(VC)atSpecifiedTestCurrent < 0.01% °C

Hi-PotEncapsulation(IsolationVoltageCapability) 2500 V

IsolationVoltageCapability(whenthethermaldisconnectopens) 1500 V

HousingInsulationResistance >1,000 MΩ

1.cURandURapprovedforType2SPDApplication

2.URapprovedforType1SPDApplication

1 2 3 4 5 6

Résumé du contenu

Page 1 - TCMOV Varistor Series

Page 2

Page 3 - Hi–EnErgy MoV’s

Page 4 - TCMOV34S321MP

Page 5

Page 6

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Littelfuse TCMOV Varistor Series Manuel d'utilisateur

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