4~20mA DC 24V RS485 Analog Signal Protection Suppressor Surge Protective Device SPD Series/Parallel Field Installed SPD Units M20*1.5 1/2-14NPT G1/2 Thread

S-FLP Series & Parallel Signal Surge Protectors   Lightning protection in the field of process measurement and control, providing signal protection for field devices such as transmitters, thermal resistances, solenoid valves, flow meters, valve positioners, frequency converters and other instruments. And the surge protection of I/O of control system such as AI, AO, DI, DO, PI of PLC.DCS. Widely used in petroleum, chemical, natural gas, environmental protection, new energy and other industries.Basic Parameters:ModelS-FLP-2P-24.EXS-FLP-3P-24.EXNominal voltage Un24V24VDC upper limit continuous working voltage Uc32V32VAC upper limit continuous working voltage Uc22.5V22.5VLightning impulse current limp (10/350μs) per line, D12KA2KATotal nominal discharge current In(8/20 us), C220KA20KAEach nominal discharge current In(8/20us),C210kA10kAProtection voltage Up (8/20 us), C2L-L≤60V/L-PE≤600VL-L≤60V/L-PE≤600VFrequency fG (100Ω characteristic impedance)10MHz10MHzResponse timeTa