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Keyphasor* reference and speed measurements
Tariff Code: 85044030
Interfacing with controller I/O modules
Velocity Range:
Port activity: Transmit (TX) and Receive (RX) indicators for each port
ABB CMA 121 3DDE 300 401 Power Supply Card Fiber Ring Repeater Keyphasor* reference and speed measurementsABB CMA 121 Power Supply Card Product Description The ABB CMA 121 (Part Number: 3DDE 300 401) is a power supply card designed for the ABB SYNPOL D series of generator protection relays. This card is a crucial component, providing the necessary DC power to the relays electronic circuits and ensuring reliable operation in industrial and marine environments. The CMA 121 converts incoming AC voltage into a stable DC voltage, enabling the relays internal
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