Original Factory Surge protective devices-SPD to Lahore Factories
Exterior and dimensions
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- The Surge protective devices(SPDs), suitable for residential,commercial and industrial appications, are designed to limit transient overvoltage and run-off lightning currents.
- It provides reliable protection from the destructive effects of lightning and switching
- are lightning current arrsters, they can handle and divert high energy from lightning.
-they are necessary when the installation is exposed to direct lightning(for example when the buiding is equipped with external lightning protection system or powered by aerial lines).
|Model:||Max continuous operationl voltage Uc-(V):||Nominal discharge current In(8/20s)(KA):||Max. discharge current Imax(8/20μs)(KA):||Level of protection Up(KV):||Protection category:|
|Model||Max. continuous operationl voltage Uc-(V)||Impulse current Limp(10/ 350MS)||Nominal discharge current (8/20MS)||Voltage protection level||Follow current interruting rating Ifi||Max. back-up fuse||Response time||Stocking and operating temperature|
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mpcb-motor protection device
specilized type of electric motor protection device .
1.short circuit fault protection
2.line to ground fault protection
3.over load fault protection
4.phase failure fault protecton
5.line to line fault protection
some sepcilised functions available in MPCB:
1.Thermal over load prodection
2.Fault signal indication available
4.under voltage protection
application s of mpcb
1.Elevator and convers
2.Roof top air conditonsers
mccb electrical meaning,
mccb electrical symbol
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