Features 1、Compact size and guide rail type installation. 2、Three-phase monitoring of phase sequence, phase loss, over- and undervoltage and phase unbalance. 3、Powered by the measuring circuit, not required additional auxiliary power. 4、With one group normally open/close contacts. 5、With 5 indicator light to indicate all kinds of working status. Specification Features: Compact size and guide rail type installation. Three-phase monitoring of phase sequence, phase loss, over- and undervoltage and phase unbalance. Powered by the measuring circuit, not required additional auxiliary power. With one group normally open/close contacts. With 5 indicator light to indicate all kinds of working status. Applicable to pumps, fans, blowers, motors elevator, crane, central air-conditioning, etc. Specification: Condition: 100% Brand New Material: Plastic, Metal Color: As Picture Shown Model: JVR-380 Rated current: 5A Product certification: 3C, CE Package Weight: Approx. 101g/3.6oz Package List: 1 * Phase Sequence Protection Relay Package List