The EMR4 / EMR5 series will be fully replaced by the end of June 2019.
Current monitors for universal use
Phase monitors for monitoring destruction/damage protection for individual system sections
Phase sequence relays monitoring the rotating field
Unbalance relays for reliable phase loss detection
Multifunctional three-phase monitors
Asymmetric phase monitoring relays in a single device
Level monitoring relays for monitoring fill levels
Earth leakage monitors for enhanced operational safety
Phase monitor EMR5-W
The phase monitor EMR54-W in addition to the monitoring the rotary field, also monitors the level of the applied voltage – i.e. monitoring destruction or damage protection of individual system sections.
Phase sequence detection
Phase failure detection
Status display via LED
The relay features a second changeover contact that is used for indication purposes
Two versions for the monitoring voltage U = 160–300 V AC, 300 V–500 V AC and 350 V–580 V AC
Selectable response and off delay (0.1 s – 10 s)
Earth leakage monitor EMR4-R
The main area of application of the earth leakage monitor EMR4-R is the monitoring of auxiliary circuits for an earth fault to increase operating safety.