The VANGUARD PSMU-350-3 represents the next generation of industrial power supply modules, designed specifically for mission-critical automation systems. As part of VANGUARD’s Platinum Series power solutions, this 350W module delivers unmatched stability for PLC racks, DCS cabinets and motor drive systems.
Engineered with military-grade components, the PSMU-350-3 features adaptive load balancing technology that automatically adjusts output characteristics based on real-time demand fluctuations. Its patented heat dissipation design maintains optimal operating temperatures even in 55°C ambient conditions, ensuring 24/7 reliability for continuous process industries.
Technical Specifications
Parameter NameParameter ValueModelPSMU-350-3ManufacturerVANGUARDTypeSwitching Power ModuleInput Voltage85-264V AC (47-63Hz)Output Power350W continuous (450W peak)Output Channels+24V DC (14.6A), +5V DC (2A)Efficiency94% (typical at full load)Ripple Noise<1% of output voltageProtectionOVP/OCP/SCP/OTPMTBF>500,000 hoursOperating Temperature-25°C to +70°CCooling MethodConvection/forced airDimensions155mm × 105mm × 50mmWeight1.2kgCertificationsUL508, CE, IEC 61010
Key Features and Advantages:
Ultra-stable performance: The PSMU-350-3 maintains ±0.5% voltage regulation under dynamic load changes, critical for sensitive measurement circuits in process control systems. Its active power factor correction (PFC>0.95) minimizes harmonic distortion in plant power networks.
Modular redundancy: Hot-swappable design with N+1 parallel capability allows for uninterrupted power supply during module replacement. The built-in current sharing bus ensures balanced load distribution across multiple units.
Application Areas:
- Process Automation: Primary power source for ABB/Foxboro DCS I/O subsystems
- Discrete Manufacturing: Backplane power for Rockwell/GE PLC racks in automotive assembly
- Energy Infrastructure: Redundant power supply for Bently Nevada vibration monitoring systems
- Material Handling: Motor control cabinet power distribution in conveyor systems
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Installation and Maintenance:
Installation preparation: Verify input voltage compatibility and ensure minimum 50mm clearance around ventilation slots when mounting the PSMU-350-3. Use copper conductors with minimum 14AWG for power connections and follow torque specifications for terminal screws.
Maintenance recommendations: Perform quarterly infrared thermography scans to identify potential hot spots. Clean air filters every 6 months in dusty environments and verify output voltage calibration annually using certified measurement equipment.
Product Assurance:
VANGUARD provides 12-month extended warranty coverage for the PSMU-350-3, including global 24/7 technical support and advance replacement service. Each unit undergoes 72-hour burn-in testing with full load cycling before shipment.
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