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BA 9054

Voltage relay

BA 9054


Auxiliary voltage

Start up delay

Measuring range

Switching delay

Approvals and Markings


  • 0051065
  • BA9054/010 DC1-10V AC/DC24-80V
The voltage relay BA 9054 of the VARIMETER series monitors single phase DC or AC voltage systems... more

Product description

The voltage relay BA 9054 of the VARIMETER series monitors single phase DC or AC voltage systems (with 1 Measuring range for AC and DC). The adjustment is made via potentiometers on the front of the device. Early recognition and preventive maintenance avoid interruptions of electrical plants and provides a higher operational and plant safety.

Technical specifications

Width: 45 mm
Operate delay: Yes
1- / 3-phase: 1
Nominal voltage max.: AC 1000, DC 900 V
Auxiliary voltage: AC, DC, AC/DC
Output contacts: 2 C/O contacts
Enclosure design: Switch cabinet
Type: BA 9054


  • Protection against defect by overvoltage
  • Preventive maintenance
  • For better productivity
  • Quicker fault locating
  • Precise and reliable


  • According to IEC/EN 60255-1, IEC/EN 60947-1
  • To: monitor DC and AC
  • With measuring ranges from 15 mV to 1000 V
  • High overload possible
  • Input frequency up to 5 kHz
  • Galvanic separation between Auxiliary Circuit – measuring ciruit
  • Auxiliary supply AC and AC/DC
  • Optionally with start-up delay
  • With time delay, up to max. 100 sec
  • Optionally with safe separation to IEC/EN 61140 (on request)
  • As option with manual reset
  • LED indicators for operation and contact position
  • Width: 45 mm