Description
Overview
The ABB CMA121 3DDE300401 DC Power Supply Module delivers clean, regulated power for sensitive automation systems. Engineers integrate this compact converter into Distributed Control Systems to achieve stable voltage output, high efficiency, and reliable performance in demanding industrial environments.
Technical Specifications
| Parameter |
Value |
| Model Number |
CMA121 3DDE300401 |
| Manufacturer |
ABB |
| Module Type |
DC Power Supply Module |
| Dimensions |
2.8 × 18.5 × 12.8 cm |
| Weight |
0.54 kg |
| HS Code |
8537101190 |
| System Compatibility |
DCS |
| Input Voltage Range |
18–32 V DC (24 V nominal) |
| Output Voltage |
5 V ±1% |
| Output Current |
4 A |
| Power Capacity |
20 W |
| Efficiency |
>85% |
| Ripple/Noise |
|
| Isolation |
500 V DC input-to-output |
| Origin |
Sweden |
| Condition |
Brand New |
| Status |
Active |
Functional Highlights
The ABB CMA121 3DDE300401 accepts a wide input voltage range of 18–32V DC and delivers a stable 5V output at up to 4A. Its advanced design ensures high efficiency above 85% and minimizes ripple to less than 50mV, protecting sensitive digital circuits. With 500V DC isolation, the module enhances safety and prevents ground loops in distributed architectures.
Applications and Compatibility
The CMA121 3DDE300401 DC Power Supply Module integrates seamlessly into ABB automation systems and Distributed Control Systems. Engineers deploy it in motor control panels, automation cabinets, and industrial environments where stable low-voltage power is essential. Its tolerance for unstable sources and long cable runs makes it ideal for challenging installations.
Benefits
-
Compact dimensions (2.8×18.5×12.8cm) simplify installation in control panels.
-
Moderate weight (0.54kg) ensures easy handling and mounting.
-
High efficiency (>85%) reduces energy loss and improves system reliability.
-
500V isolation enhances electrical safety in industrial environments.
-
Low ripple output ensures stable operation of sensitive control circuits.
