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Modular Thermally Protected MOV/TMOV (SMTMOV)

Product Name: Modular Thermally Protected MOV/TMOV (SMTMOV)
Part Series: MODULAR THERMALLY PROTECTED MOV
Application: Surge protective device and systems, AC/DC distribution systems,High voltage power supplies,Telecommunications equipment, Motor control systems,Computer related products,PLC applications,Power transfer switches
Description: Prosurge's SMTMOV is a patented Thermally Protected MOV which is widely adopted as a key component for various SPD products, expecially SPD panel, Nominal discharge current(8/20) In 20KA, SCCR 200KA SMTMOV, quick thermal response, perfect circuit cutoff function, high surge current capability, low leakage current.

Technical Features

Prosurge Electronics' patented SMTMOV (thermally MOV) is widely adopted by global customers as the most crucial component for various SPDs,especially type 1 and type 2 surge panels. It eliminates the possible failure caused by standard MOV. The SMTMOV is comprised of a voltage clamping device and a disconnecting apparatus that monitor the status of the MOV. In overvoltage situation, the MOV is securely disconnected from the system power by an arc shield.Upon failure that SMTMOV can provide remote indication via micro-switch.


Type 1CA thermally protected MOV designed to open in the event of overheating due to an abnormal over-voltage or temporary over voltage (TOV) and will interrupt any abnormal current that maybe encountered.

Ø        UL1449-4th approved Type 1CA, UL file No.:E319871

Ø        Meeting IEC61643-11 standard

Ø        Quick thermal response and perfect circuit cutoff function due to special thermal disconnector design with arc extinguishing device (Patent No.US20110170217A1).

Ø        Wide operating temperature range and high reliability.

Ø        High surge current capability and low leakage current.

Ø        Floating remote signaling contact (50mA 12Vdc) for fault indication

Ø        Type 1CA SPD, application in the AC mains, service entrance, and heavy industrial etc.

Ø        Short circuit current rating (SCCR) 200kArms


Data Sheet

Part No.

SMTMOV150

SMTMOV180

SMTMOV275

SMTMOV320

SMTMOV420

SMTMOV550

SMTMOV690

In accordance with

UL1449-4thIEC61643-11:2011

Category

UL for Type 1CA

Varistor Voltage@1mA V1mA (V)

228~270

250~310

409~475

485~563

646~748

820~1000

1000~1250

Max. continuous operating voltage (AC/DC) MVOV

150

/200

180

/230

275

/350

320

/410

420

/560

550

/745

690

/910

Nominal discharge current(8/20) In  x 15 times

20kA

 

Max. discharge current(8/20) Imax  x 1 time

50kA

40kA

Voltage protection level (VPR)

<0.6kV

<0.6kV

<0.8kV

<1.0kV

<1.5kV

<1.5kV

<2.0kV

Response time

≤25 ns

Operating temperature range

- 40ºC ~ + 85ºC

Enclosure material

thermoplastic; extinguishing degree UL94 V-0

Insulation Resistance

≥10 MOhm

Electric Strength

≥2500V (AC)

Disconnector  instructions

viewed through top hole of plastic housing

Remote alarm contact

floating contact (50mA 12Vdc) for fault indication

SCCR

200kA

Approvals, Certifications

UL, CE






Dimension drawing: