Monitoring relay VRBU3, VRBU3N

  • PHASE BALANCE AND UNDERVOLTAGE MONITORING RELAYS
  • HIS UNIT MONITORS A 3-PHASE SUPPLY FOR PHASE IMBALANCE, LOW OR MISSING PHASES OR INCORRECT PHASE SEQUENCE AND TRIPS A RELAY IF IT DETECTS ANY ANOMALY.
  • VERSIONS ARE AVAILABLE TO SUIT 3-WIRE, 3PH (VRBU3) AND 4-WIRE, 3PH+N (VRBU3N) SUPPLIES OF 110 V, 210 V AND 430 NOMINAL.
  • A FRONT PANEL CONTROL ALLOWS SELECTION OF MINIMUM VOLTAGE LEVEL.
  • LEDS INDICATE POWER ON AND TRIP STATUS.

• This unit monitors a 3-phase supply for phase imbalance, low or missing phases or
incorrect phase sequence and trips a relay if it detects any anomaly. A front panel control allows selection of minimum voltage level. LEDs indicate power on and trip status.
• Versions are available to suit 3-wire, 3ph (VRBU3) and 4-wire, 3ph+N (VRBU3N) supplies of 110 V, 210 V and 430 V nominal. The 110 V and 120 V versions occupy a single
module width on the DIN rail and have a single relay contact whereas the 430 V version occupies a three-module width and has two relay contacts.
• These instructions contain important safety information. Please read them thoroughly before commissioning, operating or maintenance of the unit.

Reviews

There are no reviews yet.

Be the first to review “Monitoring relay VRBU3, VRBU3N”

Your email address will not be published. Required fields are marked *

Shopping Cart