CLY2-420/40-3 surge protective device (SPD)

Introduction CLY2-420/40 series of surge protect device (SPD) is suit for TN-S,TN-C-S,TT,IT etc. power supply system of AC 50/60 Hz.≤380V,and used at the equipotential connection, which protects the electric network not shocked by the thunder and lightning, it’s designed according to GB18802.1,IEC61643-1,it adopts 35mm standard rail, there is a failure release mounted on the module of surge protective device. When the SPD fails in breakdown for over-heat and over-current, the failure release will help electric device separate from the power system and give the indication signal, green means normal ,red means abnormal, Kevin wiring mode, remote signaling output interface. It’s also could be replaced for the module when has operating voltage. Installation B grade lighting current SPD is used for equipotential connection when lighting, install to the juncture of LPZ0A or LPZ0B with LPZ1. Adopting 35mm standard guide installation , connecting copper lead is 10 35mm2.Generally installed to one aerial inlet of inlet low voltage main distribution cabinet .Combine single-phase or three-phase surge protector freely according to user’s requirements. Generally installed to inlet low voltage main distribution cabinet earth wire should adopt bicolor conductor above 16mm2. Main technical parameters Typeandspec. CLY2-385/120 CLY2-385/80 CLY2-420/65 CLY2-420/40 CLY2-420/20 GridoperationUn(V) 220/380 MaximumcontinuousoperatingvoltageUc(V) 385/420 VoltageprotectionlevelUp(kv) 3.0 2.5 2.2 109 107 Maximumdischargecurrent (8/20us)lamx(KA) 120 40 65 40 20 StandardDischargeCurrent(8/20us)ln(KA) 60 20 30 20 10 Responsetimens ≤25 Protectionclass IP20 Main structure and wording principle Single-pole design, can combined into single-pole or three-pole SPD. Separator is built inside. When SPD fails in breakdown caused by overheat, time giving the indication signal. Visual window shows white for normal working and it shows red after failure and separation. Kevin connection mode can be chosen. Big through flow capacity ,quick response time and low residual voltage.