MEAN WELL DIN Rail Automation & Redundancy Solutions
DRA Series (Adjustable Power) & DRDN Series (Redundancy Modules) | UL508 Approved
Intelligent Power Delivery & Uninterruptible Security
This specialized DIN rail portfolio unites the versatile DRA Series adjustable power supplies with the robust DRDN Series redundancy modules. Designed for modern automation control cabinets, this combination ensures your critical systems receive precise voltage and remain online even in the event of a single-point power failure.
Core Series Advantages
- DRA Series (40W / 60W): Features built-in output current adjustment capabilities alongside standard voltage controls. Perfectly suited for machine vision systems, LED applications, and flexible automation equipment.
- DRDN Series (20A / 40A): High-reliability DIN rail redundancy modules that allow you to connect two power supplies in parallel. Supports 1+1 and N+1 redundancy architectures with ultra-low voltage drops to ensure seamless power handover.
- Industrial Grade: Both series are optimized for easy TS-35 DIN rail mounting and are fully certified to UL508 (Industrial Control Equipment).
DRA-40 & DRA-60: Adjustable DIN Rail Power Supplies
The DRA series stands out with its ability to allow current adjustment, providing flexibility not typically found in standard DIN rail units.
| Model Series | DRA-40 | DRA-60 |
|---|---|---|
| Max Rated Power | 40W | 60W |
| DC Voltages Available | 12V, 24V | 12V, 24V |
| Input Voltage Range | 90 ~ 264VAC / 127 ~ 370VDC | 90 ~ 264VAC / 127 ~ 370VDC |
| Max Efficiency (Typ.) | Up to 87% | Up to 87% |
| Cooling Method | Free Air Convection | Free Air Convection |
DRDN20 & DRDN40: Uninterruptible Redundancy Modules
Protect your critical infrastructure. The DRDN series monitors two independent power inputs. If one supply fails, the DRDN module instantly routes power from the secondary unit, ensuring zero downtime.
| Model Series | DRDN20 | DRDN40 |
|---|---|---|
| Max Output Current | 20A (Continuous) | 40A (Continuous) |
| Peak Current Limit (5s) | 30A | 60A |
| Voltage Options | 12V, 24V, 48V | 12V, 24V, 48V |
| Max Voltage Drop | 0.25V | 0.3V |
| Efficiency (Typ.) | Up to 98% | Up to 98% |
Smart Control & System Diagnostics
DRA Series: System Adaptability
- Current Adjustment: Designed for applications requiring tailored output characteristics, allowing flexible tuning of the power delivery.
- Low No-Load Consumption: Consumes less than 0.75W when on standby, satisfying modern green energy requirements.
DRDN Series: Dual Input Alarms
- Relay Contact Alarm: Features built-in 30VDC/1A relay contacts that trigger an alarm if either of the two input voltages drops below a specific safe threshold.
- LED Status Indicators: Green "OK" LEDs visually confirm the operational status of both inputs directly on the front panel.
- Voltage Thresholds: On a 24V system, the alarm triggers if the input falls below 18V or spikes above 31V. On a 48V system, it triggers below 34.2V or above 63V.
Dimensions & Installation Configurations
Both series are specifically built to clip effortlessly onto standard TS-35/7.5 and TS-35/15 DIN rails.
Physical Dimensions (W * H * D)
- DRA-40: 40 * 90 * 100 mm
- DRA-60: 40 * 90 * 100 mm
- DRDN20: 32 * 125.2 * 102 mm
- DRDN40: 55 * 125.2 * 100 mm
- DRA Series: Operates safely in environments from -30°C up to +70°C.
- DRDN Series: Boasts a broader operating temperature range, handling harsh industrial extremes from -40°C up to +80°C.
