Single & 3-Phase Solutions
Flexible power platforms ranging from standard 260 VA units up to 24 kVA, extendable to 40 kVA in custom modular parallel configurations.
DC/AC Inverters High-Density Power
High-reliability single-phase and 3-phase power inverters (260 VA to 40 kVA) engineered for severe railway rolling stock, industrial automation, and critical energy applications.
Compact, High-Efficiency DC/AC Power Conversion Systems
Premium PSU specializes in designing and manufacturing ruggedized DC/AC inverters prioritized for extreme electrical safety, high power density, and continuous operational reliability. Engineered with 40+ years of industrial power electronics expertise, our platforms deliver up to 94% efficiency across railway rolling stock, substations, and automated machinery.
EN 50155 Railway Compliance
Rigorously tested for shock, vibration (EN 61373), fire-and-smoke compliance (EN 45545-2), and wide DC catenary transient inputs.
Up to 94% Peak Efficiency
Advanced topology design minimizes thermal losses, reducing energy waste and ensuring long service life in harsh ambient conditions.
Qualified DC/AC Inverters Range
Browse our core standard inverter models. Each unit features galvanic isolation, robust transient protection, pure sine-wave output, and conformal coating options.
6400 VA 3-Phase Catenary Inverter
High-density catenary DC/AC inverter optimized for on-board auxiliary networks and passenger HVAC applications.
| Output Power | 6400 VA |
| Input Voltage | 400 V – 1000 VDC |
| Output Voltage | 80 V – 400 VAC |
| Cooling | Internal Forced Air |
| Standards | EN 50155 / EN 45545-2 |
ODX-6000 6000 W 3-Phase Inverter
Heavy-duty 3-phase pure sine-wave inverter engineered for demanding industrial plants and train auxiliaries.
| Output Power | 4500 W – 6000 W |
| Input Voltage | 16.8 V – 138 VDC |
| Output Voltage | 0 V – 400 VAC 3ph |
| Cooling | Internal Forced Air |
| Compliance | EN 50155 / IEC 61010 |
ODX-4500 4500 VA 3-Phase Inverter
Compact high-power 3-phase inverter delivering stable motor control voltage and low total harmonic distortion.
| Output Power | 4000 W / 4500 VA |
| Input Voltage | 50.4 V – 138 VDC |
| Output Voltage | 0 V – 400 VAC 3ph |
| Cooling | Internal Forced Air |
| Features | Galvanic Isolation |
ODX-3000 3000 VA 3-Phase Inverter
Proven 3-phase industrial platform designed for variable speed control, compressor drives, and rolling stock loads.
| Output Power | 2400 W – 3000 W |
| Input Voltage | 16.8 V – 138 VDC |
| Output Voltage | 230 V / 400 VAC 3ph |
| Cooling | Internal Forced Air |
| Derating | Up to +70°C |
ODS-3000 3000 VA Single-Phase Inverter
High-power single-phase DC/AC inverter designed for control cabinets, sub-stations, and signaling equipment.
| Output Power | 2400 W – 4000 W |
| Input Voltage | 16.8 V – 138 VDC |
| Output Voltage | 120 V / 230 VAC 1ph |
| Cooling | Internal Forced Air |
| Application | Rail, Energy, Industry |
OPS-260 IP66 Sealed 260 VA Inverter
Ultra-rugged IP66 natural convection inverter built for extreme weather outdoor cabinets and military platforms.
| Output Power | 180 W – 220 W |
| Input Voltage | 9.5 V – 138 VDC |
| Protection | IP66 Waterproof |
| Cooling | Natural Convection |
| Enclosure | Aluminum Rugged chassis |
ODS-1500 1500 VA Single-Phase Inverter
Compact single-phase inverter featuring high overload capacity and configurable output parameters.
| Output Power | 1200 W – 1500 W |
| Input Voltage | 10 V – 138 VDC |
| Output Voltage | 120 V / 230 VAC |
| Cooling | Internal Forced Air |
OCS-260 260 VA Convection Inverter
Fanless, silent 260 VA inverter providing long service lifetime without maintenance requirements.
| Output Power | 180 W – 220 W |
| Input Voltage | 9.5 V – 138 VDC |
| Output Voltage | 120 V / 230 VAC |
| Cooling | Natural Convection |
Static Switches & Inrush Limiters
Redundancy transfer switches and active inrush current limiters designed to protect power paths and guarantee zero-downtime operation.
| Switching Time | < 10 ms fast transfer |
| Protection | Active Inrush Limiting |
| Redundancy | N+1 System Compatible |
| Mounting | Rack / Chassis Mount |
Tailored Power Engineering
Need Non-Standard Specifications? We Build Custom Inverters Up to 40 kVA
When off-the-shelf inverters do not fit your thermal, mechanical, or electrical constraints, Premium PSU designs application-specific power conversion platforms leveraging qualified building blocks.
- Custom Input & Output Voltages: Tailored DC input windows (e.g. 24V up to 1500 VDC) and non-standard AC output frequency profiles (50Hz, 60Hz, 400Hz).
- Thermal & Cooling Customization: Cold plate conduction cooling, custom fanless enclosures, or liquid-cooled topologies for severe ambient constraints.
- Advanced Functional Safety: Integrated CANbus, Modbus RS-485 monitoring, hot-swap rack configurations, and parallel operation for high power scalability.
- 20+ Year Lifecycle Management: Component obsolescence tracking, field retrofits, and strict failure analysis (FMEA) to guarantee multi-decade operational reliability.
Standard Specs vs. Custom Solutions
We bridge the gap between stock availability and custom technical compliance.
Standard Catalogue Range:
260 VA to 24 kVA
Custom Inverter Engineering:
Up to 40 kVA
Operating Ambient Range:
-40°C to +85°C (OT2)
Prototypes & Qualification:
16 – 28 Weeks
Frequently Asked Questions for Procurement & Power Engineers
What power range and phase configurations do Premium PSU inverters support?
Our standard DC/AC inverter product family ranges from 260 VA to 24 kVA in single units, offering both single-phase (120V/230V AC) and three-phase (400V AC) pure sine-wave outputs. Custom power solutions can reach up to 40 kVA or higher power using parallel modular setups with active current sharing.
Which railway standards are certified for your DC/AC inverter range?
Our railway power inverters comply with major international rolling stock standards, including EN 50155 (electronic equipment on rolling stock), EN 45545-2 (fire and smoke safety), EN 61373 (shock and vibration testing), and EN 50124-1 (insulation coordination).
What input voltage ranges are supported by standard DC/AC models?
We support standard battery and catenary DC voltages including 12V, 24V, 36V, 48V, 72V, 110V, and wide-input high-voltage DC catenary lines up to 1000V DC. Input tolerance bands conform to continuous and transient voltage limits specified under EN 50155.
How do I request technical datasheets or initiate a custom inverter program?
You can request product datasheets, 3D STEP files, or technical consultation directly by reaching our engineering support team via the catalog call-to-action below.
Request Detailed Inverter Technical Specifications & Catalogs
Get immediate access to product datasheets, full compliance reports, thermal derating curves, and custom power development proposals.