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T2 Level Surge Backup Protector, ZGLEDUN LDSCB-20/40/60/80/100 Series, SPD Surge Protective Device, T2 Level Lightning Protection

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Product Description:

 

ZGLEDUN LDSCB series product is a SPD dedicated surge backup protector. It can effectively solve the fire hazard caused by the deterioration of the lightning protector and the power grid failure, and solve the failure of the lightning protector caused by the malfunction of the backup protection device caused by lightning. This backup surge protector ensures that the surge protector (SPD) does not catch fire, and the equipment lightning protection continues to be effective. At present, fuses or circuit breakers are widely used in coordination with SPD. When SPD fails or short-circuits, it will cause fire. Seies LDSCB is specially designed for SPD. It will not break under a large lightning strike. But it can be quickly broken when small power frequency current occurs after SPD failure. 

Features:

◆SCB can achieve selective breaking of the passed power frequency current and lightning current, which can effectively protect the SPD surge protector due to deterioration that causes the SPD start voltage to drop below the power supply voltage, and the power frequency leakage current increases, causing serious fire accidents.

◆ When the SPD has lightning current passing through, the SGB connected in series at the front of the SPD can ensure that the lightning current will not trip, damage, and the lightning protection will continue to be effective;

◆The UP Value (voltage protection level value) of SCB is very low when passing thunder current;

◆Using parameter control trip mechanism, and installation with 35mm guide rail .

Main Technical Parameters
Model LDSCB-20 LDSCB-40 LDSCB-60 LDSCB-80 LDSCB-100
Non-tripping Shock Wave (le) 20kA(8/20μs) 40kA(8/20μs) 60kA(8/20μs) 80kA(8/20μs) 100kA(8/20μs)
Rated Current In 10kA(8/20μs) 20kA(8/20μs) 30kA(8/20μs) 40kA(8/20μs) 60kA(8/20μs)
Residual Pressure Up < 200V < 300V < 400V < 600V < 600V
Rated Operational Voltage Ue 120V/230V/400V AC
Residual Pressure Up 20kA(8/20μs) < 300V
Current Trip Value lo (Instantaneous) 2A±5%(2~5A) Optional
Power Frequency Load Current Breaking Time (To) < 0.1s
Power Frequency Current Delay Trip 500mA-3A Optional Current (is not standard and selected by the customer )
Power Frequency Current Delay Trip Time 1s~120s Optional Time (is not standard and selected by the customer)
Test Button Verification of the tripping system (once a month)
Shell Protection Level IP20
Crimping Screw M6
Installation Location Installed on front of SPD
Connecting Wire Section 4-16mm2
Protection Action Due to Ambient Temperature Switch between -25℃ and +60℃
Storage Environment Temperature -40℃~75℃ Relative humidity <95% (below 25℃)
Working Environment  Temperature -25℃-60℃ Relative humidity <95% (below 25℃)

Measurements Wiring


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