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
In accordance with
UL for Type 1CA
Varistor Voltage@1mA V1mA (V)
Max. continuous operating voltage (AC/DC) MVOV
Nominal discharge current(8/20) In x 15 times
Max. discharge current(8/20) Imax x 1 time
Voltage protection level (VPR)
Operating temperature range
- 40ºC ~ + 85ºC
thermoplastic; extinguishing degree UL94 V-0
viewed through top hole of plastic housing
Remote alarm contact
floating contact (50mA 12Vdc) for fault indication