Overview
Specification
| Category | Specification |
|---|---|
| Model Number | CMA121 / CMA121 3DDE300401 |
| Manufacturer | ABB |
| Product Type | Industrial DC Power Supply Module |
| Warranty | 12 months |
| Input | |
| AC Input Voltage Range | 100–240 VAC, 50/60 Hz |
| Alternative AC Input | 180–265 VAC |
| Input Current | Depends on rated output |
| Inrush Current | Controlled startup |
| Output | |
| Output Voltage | 24 V DC |
| Output Current | ~12.5 A continuous |
| Regulation Accuracy | ±1 % from no load to full load |
| Ripple & Noise | <100 mV peak-to-peak |
| Peak / Transient Capability | Brief dynamic loads supported |
| Protection & Reliability | |
| Overload Protection | Automatic current limiting with auto-recovery |
| Short-Circuit Protection | Continuous with auto-restart |
| Overvoltage Protection | Built-in clamp and fail-safe circuitry |
| Thermal Management | Supports temperature rise under load |
| Remote Sense / Monitoring | Supported in certain variants |
| Environmental | |
| Operating Temperature Range | –25 °C to +55 °C |
| Extended Operating Options | –20 °C to +70 °C |
| Storage Temperature | –40 °C to +85 °C |
| Humidity | 0–95 % RH non-condensing |
| Cooling | Convection or forced airflow |
| Mechanical & Mounting | |
| Mounting Options | DIN-rail or panel mount |
| Dimensions (WxHxD) | ~127 x 61 x 32 mm |
| Weight | ~0.5–0.7 kg |
| Compliance & Standards | |
| Industrial Standards | Meets typical EMC and safety levels for power modules |
FAQ
A1: The module operates within 24–48 V DC input voltage, allowing flexible integration with different systems.
Q2: Can CMA121 be mounted on a DIN rail?
A2: Yes, it supports both DIN rail and panel mounting for versatile installation options.
Q3: Does the module provide protection against electrical faults?
A3: Yes, it includes overvoltage, overload, and short-circuit protection to safeguard connected devices.
Q4: What industries commonly use this power supply module?
A4: It is commonly used in industrial automation, process control, energy management, and safety systems.
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Contact: Manski Wong +86 18030205725 manski@cambia.cn
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