Premium OVX-6400 SERIES DC/AC Inverter
The Premium OVX-6400 is a 6.4 kVA three-phase DC/AC inverter designed for rail and transportation projects that require stable, low-distortion AC power from high-voltage DC catenary supplies. Operating across a wide 400 – 900 VDC input range, the inverter is engineered to handle the demanding electrical conditions found in rolling stock environm...
Read MoreThe Premium OVX-6400 is a 6.4 kVA three-phase DC/AC inverter designed for rail and transportation projects that require stable, low-distortion AC power from high-voltage DC catenary supplies. Operating across a wide 400 – 900 VDC input range, the inverter is engineered to handle the demanding electrical conditions found in rolling stock environments, including transient over-voltage events defined under EN50124-2. This makes it well suited for applications involving traction systems, onboard auxiliary loads and specialised rail subsystems that depend on reliable AC output.
The unit delivers a clean sine-wave output at 400 VAC with precise control over voltage and frequency, enabling integrators to match power delivery to motors, HVAC components, compressors and other mission-critical equipment. Remote configuration and monitoring are supported through RS-232 and CAN bus interfaces, giving engineering teams full visibility of operational parameters during commissioning and ongoing service activity.
For project teams focused on long-term availability, the OVX-6400 offers high input-output isolation, robust thermal protection, and compliance with EN61287-1 and EN50121-3-2, ensuring suitability for use on modern rolling stock. Designed with a compact footprint and weighing under 12 kg, it integrates easily into constrained electrical cabinets while maintaining efficient cooling through internal controlled-airflow design.
Powerbox Australia supports Premium’s rail-grade power platforms locally, providing access to stock, technical guidance and lifecycle support for OEMs, rail operators and system integrators. With its combination of electrical robustness, flexible control options and standards-aligned design, the OVX-6400 gives Australian rail projects a dependable solution for converting high-voltage DC into stable three-phase AC across a wide range of rolling stock applications.
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Features
- High-voltage catenary input range for rail installations - Engineered to operate reliably from 400 to 900 VDC catenary supplies, the OVX-6400 is designed to withstand the challenging electrical environments found in rolling stock. The 7701Z variant adds protection for 2800 V surge conditions in line with EN50124-2, supporting use across diverse traction networks.
- Stable three-phase output with low harmonic distortion - The inverter delivers a regulated 400 VAC three-phase sine-wave output with THD below 2 percent, ensuring smooth operation of motors, compressors and other sensitive onboard equipment. Adjustable voltage and frequency settings give integrators full control when matching load requirements.
- Comprehensive isolation and safety architecture - With 5200 VRMS input-to-output isolation and compliance to EN50124-1 insulation coordination requirements, the unit supports safe operation in high-energy rail environments. Additional protection includes under-voltage lockout, over-voltage shutdown, thermal safeguards and current-limited overload handling.
- Advanced remote monitoring and control - RS-232 and CAN bus connectivity allow engineering teams to configure parameters, monitor input/output conditions and adjust operating modes during commissioning and routine service. Functions such as rotation direction, V/F curves, frequency set points and ramp profiles can be fine-tuned to meet application demands.
- Robust mechanical design for onboard environments - Tested to EN61373 Category 1 Class B, the OVX-6400 withstands shock and vibration typical of rail vehicle installations. The compact 87 × 430 × 450 mm enclosure with controlled internal airflow enables efficient thermal performance while fitting neatly into constrained electrical cabinets.
- Long-life construction with low maintenance in mind - With a 100,000-hour MTBF at 40°C and a 20-year design life, the inverter supports long-term operation in continuous-duty transport applications. Internal fan assemblies are designed for service replacement at the 10-year mark, helping operators extend asset life while maintaining performance.
Specifications
| INPUT | |
|---|---|
| Nominal DC input voltage | 600 / 750V |
| Minimum DC input voltage | 400V continuous |
| Maximum DC input voltage | 900V continuous |
| Maximum Input overvoltage | Only for the model OVX-6400-7701Z: • EN50163:2006 (Supply voltage of traction systems) • 2800V according to EN50124-2=2017 4.2.2 and Annex A |
| Maximum input ripple | ±5% VPP from 300 to 360Hz |
| Inrush current | 15A |
| OUTPUT | |
|---|---|
| Output type | AC 3ph sine wave |
| Output Voltage | 400V |
| Voltage tolerance | ±5% |
| Output voltage range | 20…100% of VOUT (adjust via remote control) |
| Output frequency | 50 / 60Hz via DIP-switch, 5…75Hz via RS-232 |
| Maximum continuous current (IRMS) | 9.24A |
| Maximum peak current 5s (IRMS) | 11.5A |
| Continuous active / apparent power | 6000W / 6400VA |
| Peak active / apparent power 5s | 8000W / 8000VA |
| Load regulation | < 4.5% |
| Line regulation | < 2% |
| Output wave distortion THD | < 2% (average of 16 samples) |
| Output HF ripple | < 2.5% |
| ENVIRONMENTAL | |
|---|---|
| Storage temperature | -25 … 80°C |
| Operating ambient temperature: Full load 62.5% load |
-25 … 55°C, 70ºC 10 min (SU3 class, according to EN61287-1) -25 … 70°C |
| Relative humidity without condensation | 5 … 95% |
| Maximum Altitude | 2000m at full load |
| Cooling | Internal forced air controlled |
| Environmental regulations | RoHS & Reach according to directive 2011/65/EU |
| EMC | |
|---|---|
| Immunity according | EN61000-6-2, EN50121-3-2 |
| Emissions according | EN61000-6-4, EN50121-3-2 |
| SAFETY | |
|---|---|
| Safety according to | EN50124-1 Railway app. (Insulation coordination) |
| Dielectric strength: Input-Output | 5200VRMS 50Hz 1min. |
| Dielectric strength: Input-Earth | 3400VRMS 50Hz 1min. |
| Dielectric strength: Output-Earth | 2300VRMS 50Hz 1min. |
| Pollution degree | PD2 |
| Overvoltage category | OV3 |
| Fire and smoke | EN45545-2 |
| RELIABILITY | |
|---|---|
| MTBF | 100.000h @40ºC according to SN29500 |
| Shock and Vibrations according to | EN61373:2011 Category 1 class B body mounted |
| Life cycle | 20 years (fan maintenance after 10 years is required) |
| MECHANICAL | |
|---|---|
| Dimensions (H x W x D mm) | 87 x 430 x 450 |
| Weight | < 12 kg |
| Protection degree | IP20 |
| PROTECTIONS | |
|---|---|
| Against reverse input voltage | Series diode at the input |
| Against input under-voltage | Under-voltage lock-out |
| Against input over-voltage | Over-voltage lock-out |
| Against input over-current | Input fuse |
| Against output overloads and short-circuits | Current and I²T limited (see overload protection curve) |
| Against over-temperature | Shutdown with auto-recovery |
| CONTROL | |
|---|---|
| Output OK LED | Green |
| Input OK LED | Green |
| Alarm LED | Red |
| Input alarm | Open when alarm. Maximum rating: 0.16A at 160VDC |
| Output alarm | Open when alarm. Maximum rating: 0.16A at 160VDC |
| Remote OFF input | Off applying 15…143 VDC, Impedance >35kΩ |
| Configurable input (reverse or mid-power) | ON: applying 15…143 VDC, Impedance >35kΩ |
Selection Table
| MODEL SELECTION | ||||
|---|---|---|---|---|
| Input Voltage | Transient Input Overvoltage | Output Voltage | Output Power | |
| OVX-6400-7701 | 400 … 900 Vdc | None | 400V three phase | 6kW 6.4kVA 8kWPK |
| OVX-6400-7701Z | 400 … 900 Vdc | 2800V acc. EN50163 | 400V three phase | 6kW 6.4kVA 8kWPK |
Technical Drawings
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.