Undervoltage Relay AA 9943

Article number: 0005678
Variant: AA9943.11 3AC50-400HZ 240/415V

The undervoltage relays BA 9043 and AA 9973 of the VARIMETER series monitor 3-phase AC networks.... more

Product description

The undervoltage relays BA 9043 and AA 9973 of the VARIMETER series monitor 3-phase AC networks. The measurement is very simple and without extensive wiring as there is no auxiliary power supply necessary. The adjustment of the setting values is user friendly and done on 2 rotary switches on the front of the device.

Technical specifications

Width:	45 mm
Operate delay:	Yes
1- / 3-phase:	3
Nominal voltage max.:	3/N AC 500/290 V
Auxiliary voltage:	Without
Output contacts:	1 C/O contact, 2 C/O contacts
Enclosure design:	Switch cabinet
Type:	AA 9943

Downloads

BA9043_en (PDF - 307.66 KB)

Features

According to EC/EN 60255-1
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 with optionally adjustable time delay
De-energized on trip operation
LED indicator for operation and state of contact
Insensitive to harmonics
Frequency up to 400 Hz
Width 45 mm