ABB 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 relay’s 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 relay’s internal components to function effectively in demanding applications.

Key Specifications

• Model Number: CMA 121

• Part Number: 3DDE 300 401

• Brand: ABB

• Product Type: Power Supply Card

• System: SYNPOL D

• Input Voltage: 24 V DC

• Output Voltage: Not specified (internal use)

• Weight: 0.2 kg

• Dimensions (W × H × D): 96 × 96 × 25 mm

• Function: Supplies power to the SYNPOL D relay’s internal circuitry