Protection Relay
Protection Relay
P-042
P 085 Low Voltage Brief Catalogue -
Low Voltage Brief Catalogue
NJB1-YW Floatless Relay
▪ NJB1-YW Floatless Relay is applicable for water level automatic control in industrial facilities & equipments, civil water tower, high cistern, underground conservation pool, etc.
▪ The control of automaitic water supply or drainage may be achieved by a simgle operation of the function switch without modifying the user's connectiong conditons. ▪ This product is not applicable for water level control of flammable and explosive liquid, such as oil, chemical liquid, etc.
NJB1-YW
NJB1-X Relay (Three-Phase Unbalance, Phase Sequence, Phase Failure Protection)
▪ NJB1-X relay are applied in AC380V~480V control circuits at a frequency of 50Hz/60Hz as protection elements of phase sequence, phase failuire and phase unbalance,making or breaking circuits.
NJB1-X
▪ The relay with the true effective value of three phase AC voltatage provides more reliable operating protection. The products meet the requirements of standard IEC 60947-5-1.
NJB1-X1 Relay (Phase Sequence, Phase Failure Protection)
▪ NJB1-X1 relay is used as an phase sequence and phase failure protection device in control circuits with an AC voltage of 200V~500V and a frequency of 50Hz or 60Hz to make and break the circuit.
NJB1-X1
▪ It cannot monitor the phase failure of motor load.
▪
The products meet the requirement of standard IEC 60947-5-1
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