SymCom 777-HVR Electronic Overload Relay overload relay Installation instructions

Below you will find brief information for overload relay 777-HVR Electronic Overload Relay. This document explains how to install and configure the overload relay. The relay gives you the ability to monitor and protect your motors from overload, undercurrent, and other faults. It can even be used to detect voltage unbalance, single phasing, and ground faults.

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SymCom 777-HVR Electronic Overload Relay Installation Instructions | Manualzz

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Key features

  • Overload protection
  • Undercurrent protection
  • Voltage unbalance detection
  • Single phasing detection
  • Ground fault protection
  • Remote communications
  • Remote reset
  • Programmable operating points
  • Multi-function display

Frequently asked questions

To program the overload relay, follow the instructions in the "Programming" section of the manual. You will need to select the feature you want to program and adjust the settings using the "DISPLAY/PROGRAM" adjustment.

Connect the overload relay to the motor by following the wiring diagram in the "Connections" section of the manual. Make sure the power is disconnected before you begin.

The overload relay has several different trip classes, each with a different trip delay. The trip class determines how quickly the relay will trip when an overload occurs. You can select the appropriate trip class for your application by referring to Table No. 2 in the manual.
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