Inission Power DDP400 - 400 W Open Frame AC/DC Power Supply
Industry-Standard 1U-Compatible Open Frame with 80 Plus Platinum-Exceeding Efficiency
Open frame power supplies are the preferred choice for system integrators who need full flexibility over mechanical integration, airflow management, and thermal design within their own enclosure. At 400 W output power in a low-profile package suited to 1U equipment designs, the Inission Power DDP400 series brings high efficiency and practical integration features to a wide range of industrial, AV, telecommunications, and laboratory applications.
With 94% typical efficiency - exceeding the 80 Plus Platinum specification requirements - and a convection rating of 250 W for installations where forced airflow is unavailable or undesirable, the DDP400 is among the most efficient open frame power supplies available at this power level.
Designed for Industrial, AV, Telecommunications, and Laboratory Applications
The DDP400 open frame is suited for use across a range of system environments, including:
- Industrial and process control systems
- Video wall displays and entertainment equipment
- Telecommunications infrastructure
- Laboratory and analytical equipment
- Test and measurement systems
- Industrial laser applications
- 3D printing equipment and ATM machines
Technical Characteristics
The DDP400 is engineered to deliver high output power and efficiency within a compact, integration-ready open frame package:
- Output power: 400 W rated with forced-air cooling; 250 W with free-air convection
- 440 W peak power capability
- Universal AC input voltage range: 90-264 V AC covering all global grid voltages
- Standard output voltages: 12 V, 24 V, 36 V, and 48 V DC
- Integrated auxiliary 12 V / 1 A fan output - eliminating the need for a separate fan power supply within the host system
- Standby +5 V / 2 A output for system control and low-power standby functions
- Standby power consumption below 0.5 W for system-level energy efficiency compliance
- 94% typical efficiency, exceeding 80 Plus Platinum load profile requirements
- Active Power Factor Correction (PFC) compliant with EN 61000-3-2 Class C and D
- Low earth leakage current below 300 µA
- Logic signal disable input for system-level power control
- Operating temperature range: -20 °C to +50 °C
- Altitude operation up to 4,000 m without derating
- EN 55032 and FCC Class B conducted and radiated EMC compliance
- Certified to UL 60950-1, CSA C22.2 No. 60950-1, EN 60950-1, and UL/IEC/EN 62368-1
- CE marked, UL Recognition
Efficiency That Reduces System Thermal Load
At 94% efficiency, the DDP400 converts a very high proportion of input power into usable DC output, with correspondingly low heat generation at the power supply itself. This directly reduces the thermal burden on the host system enclosure, allowing designers to achieve target operating temperatures with less airflow - or in some cases, to transition from a forced-air design to a convection-cooled approach entirely.
The integrated 12 V fan output is a practical detail that simplifies system design: rather than requiring a separate auxiliary rail or dedicated fan controller supply, the fan can be powered directly from the DDP400's integrated output, reducing component count and wiring complexity within the enclosure.
The logic-controlled disable function and sub-0.5 W standby consumption together support system-level energy management and compliance with energy efficiency standards including Energy Star, where applicable.
FORTEC Switzerland supports you in selecting the right DDP400 configuration for your application - from initial evaluation through to project-specific procurement and long-term series supply.