Online, 3-in/3-out, lead-acid or LiFePO4

Highidea 33ET Series — Three-Phase Online UPS (10–60 kVA)

The 33ET Series is a rack-mounted, three-phase-in/three-phase-out online UPS for 10–60 kVA critical loads. It delivers unity output power factor, 0 ms transfer, up to four-unit parallel operation, and supports either lead-acid or LiFePO4 battery systems.

Capacity
10/15/20/30/40/60 kVA (kW = kVA, PF 1.0); parallel up to 4
Topology
Online, three-phase in / three-phase out; pure sine
Transfer Time
0 (no transfer)
Chemistry
Supports lead-acid AND LiFePO4
2-year UPS warranty

Confirm host, battery, runtime and document scope for the exact configuration

Capacity

10/15/20/30/40/60 kVA (kW = kVA, PF 1.0); parallel up to 4

Topology

Online, three-phase in / three-phase out; pure sine

Chemistry

Supports lead-acid AND LiFePO4

Config

per 12 V lead-acid— 20 or 32–40 adjustable; max charge current 1–12/16/18 A adjustable; charge V ±13.65 VDC×N

Technical data

33ET Series (33ET10/15/20/30/40/60 KRS) specifications.

Compare the electrical, battery, monitoring, environmental and compliance data for this product family.

01Electrical
Capacity10/15/20/30/40/60 kVA (kW = kVA, PF 1.0); parallel up to 4
TopologyOnline, three-phase in / three-phase out; pure sine
Input3×380 VAC (3PH+N); range 190–520 VAC @50% load / 305–478 VAC @100%; freq 46–54 or 56–64 Hz; input PF ≥0.99 @100%
Output3×360*/380/400/415 VAC (3PH+N); battery-mode reg ±1%; *3×360 V derates capacity to 90%
Output Thd≤1% linear / ≤3% nonlinear; crest 3:1
Overload100–110% 60 min · 110–125% 10 min · 125–150% 1 min · >150% immediate
Efficiencymains 95.5% · ECO 98.5% · battery 94.5%
Transfer Time0 (no transfer)
02Battery
ChemistrySupports lead-acid AND LiFePO4
Configper 12 V lead-acid: 20 or 32–40 adjustable; max charge current 1–12/16/18 A adjustable; charge V ±13.65 VDC×N
03Management & Monitoring
InterfacesRS232/USB (Windows/Linux/MAC); opt SNMP
04Environment & Mechanical
Operating Temperature0–40 °C, 0–95% RH non-condensing
Noise<62/65/70 dB @1m (by size)
Dimensions WeightD×W×H mm — 680×438×133 (3U) for 10–30K · 797×438×176 (4U) for 40/60K; weights 27/30/32/40/45 kg
05Compliance & Warranty
Ce Listed Models33ET10/15/20/30/40KRS are within the 33ET10–40KRS scope explicitly listed on CE certificate 2026AT0511576
WarrantyUPS main unit: 2 years

Request the full user manual & datasheet

Selection guide

Is this the right model for you?

Quick pointers to confirm fit, or steer you to a sibling model.

  • Choose the 33ET Series (33ET10/15/20/30/40/60 KRS) when its power range, format and operating role match your application.
  • Provide capacity, input/output voltage, runtime, installation format and destination-market document requirements for final model selection.

FAQ

Frequently asked questions

What should I provide to select the right 33ET Series (33ET10/15/20/30/40/60 KRS)?

Share the load in watts or VA, input and output voltage, required runtime, installation format, site conditions and destination market. Our team will match the product, battery and monitoring options to the application.

Can I request a datasheet for the 33ET Series (33ET10/15/20/30/40/60 KRS)?

Yes. Contact sales with the required rating and destination market to receive the applicable datasheet, manual and compliance-document list.

Start a project

Configure a 33ET Series (33ET10/15/20/30/40/60 KRS) for your site.

Tell us the load, voltage, runtime, site conditions and destination. Sales will confirm the host, battery and configuration-specific document scope.