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ET1-6KRS Online Rack Lithium Battery UPS

1–6kVA online rack platform with modular lithium battery selection — choose the runtime by choosing the packs.

ET1-6KRS Series Product image
Appearance may vary by configuration; final specifications per quotation.
Brand
HighIdea
Type
Online double-conversion UPS (rack)
Typical applications
Server racks, data centers, telecom equipment, industrial control
Models in range
ET1KRS, ET2KRS, ET3KRS, ET6KRS
Category
UPS Power Supply

The ET1-6KRS is the flexible middle of the ET rack line: the UPS chassis and the lithium battery packs are separate, so runtime is a configuration choice rather than a chassis constraint. Pair one 6kVA unit with two packs for compact sites, or more packs when the load profile demands longer autonomy.

Key Features

  • Online double conversion with pure sine wave output
  • Modular battery selection — compatible with 48V multi-brand LiFePO4 packs
  • DSP-controlled high-frequency conversion for high efficiency
  • Wide input voltage and frequency range, generator compatible
  • LCD status display with battery health and runtime estimation
  • SNMP / Modbus / dry-contact options and cloud monitoring support

Specifications

Capacity1 / 2 / 3 / 6 kVA
TopologyOnline double conversion (VFI)
BatteryExternal LiFePO4 packs (48V
Input voltage230 Vac nominal
Output voltage230 Vac
Transfer time0 ms
Form factor19-inch rack-mount
CommunicationRS-232; optional SNMP / Modbus / 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

Growing server rooms

Start with one pack per UPS and add capacity as the load grows — no forklift upgrade needed.

Telecom equipment rooms

Rack format and remote monitoring suit sheltered and unattended telecom sites.

FAQ

Which battery packs work with it?
The platform accepts 48V LiFePO4 packs with standard BMS communication — HighIdea LD48V packs are the plug-and-play choice, and major third-party 48V packs are compatible.
What is the difference to the ET1-3KR?
The ET1-3KR has the battery built in; the ET1-6KRS uses external modular packs, giving you free choice of runtime and capacity up to 6kVA.

Related Models

ET1-3KR Series

The ET1-3K platform in a 19-inch rack chassis — lithium runtime and online protection for standardized server cabinets.

View details

ET6/10KRS PRO Series

6–10kVA online rack UPS purpose-engineered for long-duration lithium backup — single-phase or three-phase input, single-phase output.

View details

LD48V 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
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