Industrial Pure Sine Wave DC/AC Inverters
Heavy-duty, high-efficiency DC to AC inverters designed for substations, telecommunications, railways, and mission-critical industrial applications.
Mission-Critical Pure Sine Wave Inverters Built for Tough Environments
For over 38 years, Helios Power Solutions has engineered and supplied industrial-grade DC/AC power inverters tailored for extreme reliability. Operating off DC station batteries (12V, 24V, 48V, 110V, 125V, or 220VDC), our inverter platforms deliver ultra-clean, low-distortion pure sine wave AC output to safeguard critical control systems, switchgear, and telecommunication loads.
Wide DC Input & Voltage Regulation
Accommodates broad DC voltage swings common to industrial battery banks under float, boost, and discharge cycles (12V to 250VDC range).
Low Harmonic Distortion (THD < 3%)
Delivers clean, computer-grade pure sine wave AC power protecting sensitive relays, PLCs, communications equipment, and instrumentation.
Zero-Transfer Time Options
Dual AC/DC input static transfer switch capabilities guarantee continuous AC load supply without phase disruption during primary mains failure.
Hot-Swappable N+1 Redundancy
Modular 19" rack-mount shelves enable scalable configuration from 1kVA up to 100kVA+ with active load-sharing and field-replaceable modules.
Explore Industrial Inverter Categories
Select from standalone industrial chassis, high-density 19-inch rack systems, rugged convection-cooled units, or certified transportation platforms.
Industrial DC/AC Inverters
Heavy-duty standalone and wall-mount inverters engineered for harsh substation, utility, and process plant environments. Features convection cooling options, high peak surge capacity, and remote alarm contacts.
Standalone & Panel Mount · 500VA - 10kVARack Mount Inverters (19")
High-density 1U, 2U, and 3U pure sine wave inverters optimized for telecom racks, datacom equipment, and SCADA control cabinets. Available with RS232, SNMP, and Modbus communications.
1U / 2U / 3U Form Factor · 1000VA - 3.5kVAModular Hot-Swappable Systems
N+1 redundant inverter systems featuring hot-swappable inverter modules, smart central controllers, and zero-break static transfer switches for growing infrastructure demand.
N+1 Redundant · Scalable to 100kVA+Railway & Transport Inverters
EN 50155 certified DC/AC inverters designed to withstand extreme shock, vibration, and thermal stress on rolling stock, trackside signaling, and mobile military platforms.
EN 50155 Certified · RuggedizedAC/AC Frequency Converters
Precision solid-state frequency conversion platforms capable of translating 50Hz, 60Hz, or 400Hz inputs and outputs for international equipment testing and aviation/defence platforms.
50Hz / 60Hz / 400Hz · Precision OutputBi-Directional Inverter/Chargers
Advanced multi-directional power conversion systems seamlessly integrating AC grid power, DC battery storage, and load distribution with intelligent microgrid control.
Multi-Directional · Smart MicrogridPopular Industrial Inverter Series Comparison
Compare performance parameters across our standard inverter lines. Custom input/output voltage combinations and specialized enclosures are tailored upon request.
| Series Model | Power Output | Input VDC Options | Output Voltage / Frequency | Cooling & Mounting | Key Features & Comms |
|---|---|---|---|---|---|
| CSI1K-FT Series | 1000 VA | 24, 48, 110, 125, 220 VDC | 115VAC / 230VAC (50/60/400Hz) | Convection Cooled (No Fans), Panel/Rack | High reliability, rugged industrial design, zero noise |
| CSI1K5 / CSI2K Series | 1500 VA – 2000 VA | 24, 48, 110, 220 VDC | 110-120VAC / 200-240VAC | 3U x 19" Rack Mount or Chassis | Pure sine wave, surge capacity, Form C alarm contacts |
| RM1KVA-2KVA Series | 1000 W – 2000 W | 12, 24, 48 VDC | 200-240 VAC (50/60Hz) | 1U x 19" Rack Mount | Built-in bypass/utility transfer switch, RS232, SNMP option |
| Sine Wave 1500 Series | 1500 W | 12, 24, 48 VDC | 230 VAC (120 VAC optional) | 1U x 19" Low Profile Rack | 93% Peak efficiency, TCP/IP Ethernet port, remote cycling |
| Y-ONE 230VAC / REG | 500 VA – 1500 VA | 48 VDC | 230 VAC Pure Sine Wave | Ultra-compact 19" Rack (300mm depth) | Dual AC/DC inputs, 0ms transfer time, permanent double conversion |
| Sierra Modular Systems | Scalable up to 100kVA+ | 48 VDC / 110 VDC / 220 VDC | 1-Phase (230V) or 3-Phase (400V) | Modular Hot-Swap Shelves | N+1 Redundancy, Modbus TCP/IP, SNMP, high efficiency (>96%) |
Key Parameters for Selecting Industrial DC/AC Inverters
Over half of the power conversion systems shipped by Helios are configured to exact project specifications. When specifying a DC/AC inverter for critical industrial applications, our application engineers evaluate key factors to prevent premature failure and ensure system integrity:
- DC Input Voltage Window: Inverters must operate seamlessly across full battery discharge curves (e.g., 90VDC to 140VDC for a 110V nominal bank).
- Load Crest Factor & Inrush Capacity: Motor drives, solenoids, and transformers draw heavy starting currents requiring high peak surge capability (up to 300% rated load).
- Thermal Derating & Cooling Strategy: Convection-cooled inverters eliminate fan failure points in dust-laden or remote environments, while temperature-rated designs operate continuously up to 65°C.
- SCADA & Network Protocol Mapping: Integration with station monitoring systems via SNMP traps, Modbus RTU/TCP, DNP3, and volt-free dry alarm contacts.
Custom DC/AC Inverter Systems Built & Tested to International Standards
Frequently Asked Questions on Industrial DC/AC Inverters
Helios provides DC/AC inverters designed for standard industrial battery bus voltages including 12VDC, 24VDC, 48VDC, 110VDC, 125VDC, and 220VDC. Extended input voltage windows are integrated to accommodate continuous float charging and battery discharge end-point voltages without operational interruption.
Our dual-input modular inverters feature zero-break static transfer switching (0 ms transfer time) between AC grid primary mode and DC battery backup mode, guaranteeing uninterrupted operation for sensitive communications equipment and protection relays.
Yes. Our modular inverter systems and customized 3-phase inverter power plants can convert standard 48VDC, 110VDC, or 220VDC station power into balanced 380V/400V/415V 3-phase pure sine wave AC output for heavy industrial motors, pumps, and facility distribution.
Convection-cooled inverters eliminate moving mechanical parts (fans), making them ideal for unstaffed remote sites, high-dust environments, or applications requiring zero maintenance and high MTBF (Mean Time Between Failures).
Yes. Most series feature optional network communication cards supporting SNMP, Modbus RTU/TCP, RS232/RS485, and configurable volt-free alarm contacts for seamless integration into industrial control networks.
Need Technical Advice or a Customized Inverter Quote?
Speak directly with our senior power engineers to size your inverter, verify DC bus compatibility, or request tailored engineering drawings.