Power Automation Sweden AB

Cylindervägen 8
13152 Nacka Strand
Sweden
AA 9943

Undervoltage Relay

AA 9943

Contacts

Nominal voltage

Variant

  • 0005678
  • AA9943.11 3AC50-400HZ 240/415V
Undervoltage detection in 3 phase systems For industrial and railway applications more

Product description

  • Undervoltage detection in 3 phase systems
  • For industrial and railway applications

Technical specifications

Width: 45 mm
Operate delay: +
1- / 3-phase: 3
Output contacts: 1 Wechsler, 2 Wechsler
Measuring range max.: AC 690 V
Enclosure design: Front panel mounting
Type: AA 9943

Features

  • According to EC/EN 60255-1, IEC/EN 60255-26, VDE 0435 part 303
  • 3-phase
  • For nominal voltage of 3 AC 100 / 57 to 690 / 400 V
  • Measures arithmetic mean value
  • Adjustable operate and release value
  • For 3p3w or 3p4w systems
  • BA 9043 optionally with adjustable time delay
  • Closed circuit operation
  • LED indicator for operation and state of contact
  • Insensitive to harmonics
  • Frequency up to 400 Hz
  • Width 45 mm