ET1-3KR Rack-Mount Online UPS with Built-in LiFePO4
The ET1-3K platform in a 19-inch rack chassis — lithium runtime and online protection for standardized server cabinets.
Product image
- Brand
- HighIdea
- Type
- Online double-conversion UPS (rack)
- Typical applications
- Server racks, data cabinets, network equipment, telecom rooms
- Models in range
- ET1KR, ET2KR, ET3KR
- Category
- UPS Power Supply
The ET1-3KR packs the ET platform's lithium online protection into a 19-inch rack chassis — the practical choice for server cabinets where floor space for tower units and battery racks simply doesn't exist. The built-in BMS communicates with the UPS controller, so battery health and remaining runtime are visible on the LCD and through the optional SNMP/cloud card.
Key Features
- 19-inch rack chassis with built-in Class A LiFePO4 battery
- Online double conversion, zero transfer time, pure sine output
- DSP digital control and high-frequency PWM conversion
- Compatible with 48V multi-brand battery packs for extended runtime
- Wide input voltage range (110–300VAC) with lightning protection
- RS-232 standard; optional SNMP/Modbus/dry contacts and cloud monitoring
Specifications
| Capacity | 1 / 2 / 3 kVA |
|---|---|
| Topology | Online double conversion (VFI) |
| Battery | Built-in LiFePO4 with BMS; 48V pack compatible |
| Backup time (full load) | 30+ minutes |
| Input voltage range | 110–300 VAC |
| Output voltage | 220 / 230 / 240 Vac (selectable) |
| Output waveform | Pure sine wave |
| Transfer time | 0 ms |
| Form factor | 19-inch rack-mount |
| Communication | RS-232; optional SNMP / Modbus / dry contacts / cloud card |
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.
Applications
Standardized server racks
Drops straight into 19-inch cabinets — lithium runtime without occupying the battery bay.
Edge & micro data centers
Compact footprint and remote monitoring options suit distributed, lightly-staffed sites.
Network core rooms
Protects core switches and routers with clean online power through grid disturbances.
FAQ
How many rack units does it occupy?
Can runtime be extended later?
Related Models
ET1-3K Series
Online double-conversion tower UPS with a high-capacity Class A LiFePO4 battery inside — 30–40 minutes of full-load backup in one cabinet, maintenance-free.
View detailsET1-6KRS Series
1–6kVA online rack platform with modular lithium battery selection — choose the runtime by choosing the packs.
View detailsLD48V Series
New-production Class A cells, built-in BMS, rack format — the lithium pack that upgrades any 48V UPS or telecom power system.
View details