This manual provides wiring instructions and functional descriptions for Moeller timing relays and EMR4 measuring and monitoring relays.
This document serves as a wiring manual for Moeller timing relays and EMR4 measuring and monitoring relays. It details the functions, wiring configurations, and applications for various relay models, including timing relays with different delay functions and multifunction relays.
The guide also covers the EMR4 series of measuring and monitoring relays, which include current monitoring, phase sequence, phase imbalance, and insulation monitoring relays. It explains how these devices protect motors and systems from damage due to incorrect rotation, voltage issues, or phase failures.
| Delay time range | 0.05 s to 100 h |
|---|---|
| Switching capacity | AC-15 and DC-13 |
| Voltage range (EMR4-F500-2) | 200 to 500 V AC |
| Rated voltage (EMR4-A) | 380 V, 50 Hz |
Times between 0.05 s and 100 h can be easily selected and set.
By using a selectable time delay of between 0.05 and 30 s, short current peaks can be bridged.