Phase monitoring relays, Multi-functional, 300 - 500 V AC, 50/60/400 Hz

Phase monitoring relays, Product range: EMR Measuring and monitoring relays, Multi-functional, Power supply from the measuring circuit, On-delay/off-delay: none = 0 or adjustable between 0.1 - 30 s, Imbalance threshold values adjustable 2 - 25 % of mean value of phase voltages, Three-phase networks, Automatic phase sequence correction, Monitoring voltage per phase: UN= 300 - 500 V AC, 50/60/400 Hz V AC, Monitoring of: Phase sequence (can be deactivated), Phase failure, Overvoltage, Undervoltage, Imbalance, Phase sequence, Supply voltage: 300 - 500 V AC, 50/60/400 Hz, Mounting position: As required, Fixing: Snap fixing, top-hat rail IEC/EN 60715, Width: 22.5 mm, Standards: IEC, UL, CSA, CCC, GL