Phase sequence relay, product range: measuring and monitoring relays EMR, monitoring of three-phase networks, phase failure detection at < 0.6 x Ue, power supply from measuring circuit, response delay fixed, monitoring voltage per phase: UN= 200 - 500 V AC, 50/60 Hz V AC, monitoring of: phase failure, phase sequence, supply voltage: 200 - 500 V AC, 50/60 Hz, installation position: any, fastening: snap-on mounting rail IEC/EN 60715, width: 22.5 mm, standards and regulations: IEC/EN 60255-6, EN 61557, UL, CSA, GL