ABB 3DDE300401 CMA121 Synpol D Power Supply Modules
Manufacturer: ABB
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Part Number: CMA121
Condition：New with Original Package
Product Type: Power Supply Modules
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB CMA121 Synpol D Power Supply Module
The ABB CMA121 (3DDE300401) is a DC power supply plug-in card module designed for the ABB Synpol D excitation and generator control system platform. Manufactured in Sweden, it delivers regulated DC power while interfacing with measurement transformers to maintain stable unit operation in industrial control racks.
Instrumentation Interface and Transformer Integration
The CMA121 accepts a 100 V secondary voltage input from external potential transformers. For current measurements, it works alongside standard current transformers with a selectable secondary current input of 1 A or 5 A, accommodating primary current ranges adjustable from 100 A up to 4000 A.
Physical Design and Rack Integration
Weighing 600 g, the module uses a compact plug-in card format built for direct insertion into compatible Synpol D system subracks. This construction facilitates straightforward installation and routine maintenance during system panel assembly or servicing.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | CMA121 |
| Brand | ABB |
| Part Number | 3DDE300401 |
| Series | Synpol D |
| Product Type | DC Power Supply Module |
| Secondary Voltage Input | 100 V (via voltage transformers) |
| Secondary Current Input | 1 A or 5 A |
| Rated Primary Current | Adjustable 100 A to 4000 A (via current transformers) |
| Country of Origin | Sweden |
| Mounting | Plug-in card module |
| Weight | 600 g |
Frequently Asked Questions
Q: What control system is the ABB CMA121 designed for? A: The CMA121 is a plug-in power supply card specifically built for integration within ABB Synpol D excitation and control architectures.
Q: What transformer inputs does the CMA121 module accept? A: It accepts a 100 V secondary voltage input along with a 1 A or 5 A secondary current input from external measurement transformers.