GE 531X305NTBAPG1 EX2000 NTB/3TB Terminal Board.531X305NTBAPG1 NTB/3TB terminal board is a model of GE EX2000 excitation system, located in the driver (or exciter) cabinet, the board contains the driver (or exciter) most of the external signal level I/O connection terminals and passive interface circuits, The plugs 6PL and 8PL on the driver control board, 2PL and 4PL on the power board, COMPL on the terminal board 3TB, and 2PL and 4PL on the external devices are all connected to the NTB/3TB.
GE 531X305NTBAPG1 EX2000 NTB/3TB Terminal Board
531X305NTBAPG1 power supply
For external use, the NTB/3TB provides the following power outputs:
The regulated voltages are +5 V dc and 15 V dc, each with a 300 mA current capacity
Unregulated DC 24 V, 500 mA current capacity
120 V ac, 0.5 A current capacity
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