DOLD 0068083: RL9877.11/010/61 3AC80-230V Phase monitor
The measuring relays RN 9877 and RL 9877 of the VARIMETER series monitor overvoltage, undervoltage, voltage range, phase asymmetry and phase sequence in 3-phase or single-phase systems. The measurement is very simple and without extensive wiring as there is no auxiliary power supply necessary. The monitoring functions are easily selectable using a single turn switch without complex menu structure. The early detection of up-coming break downs and preventive maintenance avoid expensive damages. As user you profit from the reliability and availability of your plant.
| Attribute | Value |
|---|---|
| Width: | 35 mm |
| Enclosure design: | Distribution board |
| Type: | RL 9877 |
| 1- / 3-phase: | 1, 3 |
| Auxiliary voltage: | Without |
| Output Contacts: | 1 C/O contact |
| Measuring range max.: | 230 V |
| Standard measuring range: | 3/N AC 80 – 230 V / 45 – 130 V |
| Approvals: | UL |
