LYS4 Series surge protector

LYS4 Series surge protector

The LYS4 series surge protector is suitable for TT, IT, IN-S, TN-C-S and other power supply systems with rated voltage 380V or below, and can be used as equipotential connection during lightning strike. The models are: LYS4(SPD)/1P,LY...

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1. Use of LYS4 surge protector

Lightning is very destructive, thunder waves will directly or indirectly (through electromagnetic induction) into the electrical channels and metal channels (such as power lines, signal lines, metal or pipes, etc.)。The resulting lightning overvoltage and surge voltage will cause great harm to electrical equipment, communication information system, light damage to the line, heavy damage to electrical equipment, the system paralysis, resulting in incalculable losses。LYS4 power supply protector is used to protect all kinds of electrical equipment in low voltage network from lightning overvoltage and various surge voltages, and is an ideal overvoltage protection device。

The LYS4 series surge protectors are suitable for AC 50Hz/60Hz,TT, IT, IN-S, TN-C-S and other power supply systems with rated voltage 380V and below,Can be used as a lightning strike equipotential connection,The product has a built-in failure disengagement device,When the power protector fails due to overcurrent overheating breakdown,The fail-escape device automatically takes it off the grid,At the same time, the visual warning indicator module can be replaced under the condition of operating voltage。

The product complies with GB/T18802.1 Standard Requirements。

Two, LYS4 surge protector display

LYS4 series surge protectors - Shanghai People Electrical Switch Factory Group

 

Three, LYS4 surge protector model meaning

LYS4 series surge protectors - Shanghai People Electrical Switch Factory Group

Conventional models are: LYS4(SPD)/1P,LYS4(SPD)/2P,LYS4(SPD)/3P,LYS4(SPD)/4P

 

Third, LYS4 surge protector product features

● Using internal wiring, the overall structure is compact, easy to install wiring。
● High speed reaction time less than 25ns。
● Obvious working status display, green (normal), red (fault)。
● Additional functions, such as sound and light alarm (B), fault remote contact (X)。

 

Four, the main technical parameters

LYS4 series surge protectors - Shanghai People Electrical Switch Factory Group

 

5. LYS4 function description

The LYS4 surge protector is used for low-voltage AC power supply in single-phase systems (phase line L+ neutral line N), three-phase three-wire (three-wire 3L) and three-phase four-wire (three-wire 3L+ neutral line N) systems to protect their electrical equipment from lightning overvoltage and various surge voltages。(So the product is called surge protector) The specific use reference is as follows:
● Single-phase (one module), used for 220V single-phase system, the neutral line and the ground line are directly connected。(L-NPE)
● Two poles (two module combination) for 220V single-phase system (L-PE,N-PE)。
● Three poles (three module combination) for 380V three-phase three-wire system (L1-PE, L2-PE, L3-PE).
● Quadrupole (four module combination) for 380V/220V three-phase four-wire system。(L1-PE, L2-PE, L3-PE, N-PE, TN system), (L1-N, L2-N, L3-N, N-PE, TT system)。
Note: L: phase line N: neutral line Pe: ground line
The power protector works normally. The indicator is green。When the module fails, the indicator turns red。Lightning arrester with sound and light reimbursement function, when the module fails, the alarm buzzes and has a red light display。Shaking function, when the module fails, the alarm buzzer can also send a closed and disconnected contact signal for remote monitoring。

 

6. LYS4 wiring diagram

LYS4 series surge protectors - Shanghai People Electrical Switch Factory Group

7. Installation dimensions of LYS4

LYS4 series surge protectors - Shanghai People Electrical Switch Factory Group

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