H Series 1-3kVA Online Inverter for Power & Telecom
A compact rack-mount online inverter that turns a station DC bus into clean, fully isolated 220Vac power — with zero transfer time and no back-feed noise.
Product image
- Brand
- HighIdea
- Type
- Online double-conversion DC-AC inverter (rack-mount)
- Typical applications
- Substations, power plants, telecom base stations, HVDC data rooms, NAS and control equipment
- Models in range
- 1 kVA, 2 kVA, 3 kVA
- Category
- Power & Telecom Inverters
The H Series 1-3kVA is the compact end of HighIdea's online DC-AC range. It is an advanced online sine-wave system with complete isolation between the AC and DC sides, designed to supply precision equipment from a station or telecom battery bank without a break.
Design notes
Full double conversion means the load is always fed by the inverter, so sags, surges and generator ripple on the AC side never reach it, and switching between DC and mains takes 0 ms. The isolated topology also prevents inverter switching noise from appearing on the DC bus — a requirement on power-industry DC panels where back-feed would raise insulation alarms.
Multiple DC input versions cover the main site standards: 110 / 220VDC for substations and power plants, 24 / 48VDC for telecom and base stations (and PV applications), and 240VDC for high-voltage DC equipment rooms. All versions deliver a pure sine 220Vac output in a 19-inch rack enclosure.
Configuration
Confirm the DC bus voltage, the load kVA/kW and power factor, the required autonomy and the communication interface before ordering. Battery banks can be VRLA strings or LiFePO4 packs. For higher capacities and a wide 160-300VDC window see the H 6-20k; for modular redundancy see the HM 3-15kVA.
Key Features
- Online double conversion with a 0 ms transfer between DC and mains
- Full galvanic AC/DC isolation and no back-feed noise into the DC bus
- Pure sine wave 220Vac output for precision instruments
- DC bus options: 24 / 48VDC for telecom, 110 / 220VDC for utilities, 240VDC for HVDC rooms
- 19-inch rack enclosure for power and telecom cabinets
- Automatic restart when DC or mains returns within range
Applications
Substations & power plants
110 / 220VDC station batteries feeding protection, control and monitoring loads.
Telecom & base stations
24 / 48VDC communication buses converted to clean AC for sensitive equipment.
HVDC & server rooms
240VDC high-voltage DC rooms and network cabinets needing isolated AC.
FAQ
Which DC input voltage should I order?
Does it feed noise back into the DC bus?
What is the transfer time?
Related Models
H Series 6-20k
High-capacity online conversion from a wide 160-300VDC bus, with external isolation transformers and the surge withstand utility DC panels demand.
View detailsHM Series 3-15kVA
A 19-inch telecom inverter that grows with the site: 3kVA modules in parallel up to 15kVA, with 4+1 redundancy and RS485 reporting.
View detailsOnline DC-AC Inverters
Continuous inverter-fed output from a station or telecom DC bus — 0 ms transfer, full isolation and no noise fed back into the DC system.
View detailsSpecification reference
| Rated capacity | 1 / 2 / 3 kVA |
|---|---|
| DC input voltage | 24 / 48 / 110 / 220 / 240 VDC (selected per model) |
| Output voltage | 220 Vac |
| Output waveform | Pure sine wave |
| Topology | Online double conversion |
| Transfer time | 0 ms |
| AC/DC isolation | Full galvanic isolation, no reverse noise |
| Mounting | 19-inch rack |
| Typical applications | Power systems, telecom, server rooms, NAS, solar |
Specifications subject to the latest factory data. Final configuration is sized against the actual load, backup runtime and site power conditions — this table is for pre-selection only.