The BA9041 can recognise the phase sequence L1 - L2 - L3 of a three-phase network and therefore avoid an incorrect rotational direction. The BA9041 phase sequence relay monitors the presence of the 3 phase voltages in a three-phase network in addition to the maintenance of the correct phase sequence. If all 3 phase voltages are present at the device in the correct phase sequence, the output contacts change over from the initial position to the operative position, contacts 11-14 and 21-24 are closed, and a green LED lights up. If the voltage falls below 60 % UN in one phase, the relay is de-energised (in accordance with: IEC 255, VDE 0435).
Detects phase sequence errors and phase failure. with 2 changeovers. Overall width 45 mm
Monitoring Application = Phase
Supply Voltage = 400 V ac
Contact Configuration = DPDT
Electrical Phase = 3
Phase Sensitivity = Phase Sequence
Time Delay = <50 ms
Dimensions = 124 x 45 x 74 mm
Width = 45mm
Height = 74mm
Maximum Operating Temperature = +60°C
| RS Components, Ltd. | |
|---|---|
| Product Category | Protective Relays and Monitoring Relays |
| Product Number | 2408923 |
| Operating Temp | 140 F (60 C) |
