Chint NJYW1-NL1 Floatless Relay (Water level control) Voltage Range (V): 220/380 Operating mode: Continuous working Conducor length: Max 1 km Response time: Reacting: max 80ms; releasing: max 160ms 1 tank upper or lower Power consumption: 3VA NJYW1 Series Floatless Relay is used in control circuit @ A.C. 50Hz/60Hz, up to 380V rated supply voltage for liquid level automatic control at places of civil water tower, high cistern, and underground conservation pool, etc. It is capable to realize automatic water supply control or water drainage control according to wiring requirement of user. WA : 081283777799