1.APPLICATION

JSK4-d range air time-delay contactor relay is used in 50Hz(or 60Hz)、rated voltage up to 380V or DC voltage up to 220V automatic control circuit,for time-delay components,and making or breaking circuit in forecast time

2.TYPE、PARAMETERS、SIZE AND WIRING PICTURE

● structure feature

● Relay is the modular structure;JSK4-d is arranged by JZC3-22d contactor way relay and SK4-d range air time-delay terminal.JSK4 is arranged by JZC3-22 contactor way relay and SK4 range air time-delay terminal,all accord air damping theory,use powder metallurgy unit as air filters,regulate knobs,and then continuously change time-delay value.