Online UPS in Bangladesh (1–600kVA)
True online double-conversion UPS from 1 to 600kVA by G-Mac, Reros and Techfine. Sizing, installation and 24/7 support. Hotline 01613215054.
ONLINE UPS
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An online UPS runs on true double conversion. It continuously turns incoming AC into DC and back into clean, pure sine-wave AC, so your load never sees the grid directly and there is zero transfer time (0 ms) when the power fails. TNS Engineering supplies and installs single-phase and three-phase online UPS systems from 1kVA to 600kVA across Bangladesh, for textile mills, data centres, hospitals and CNC machinery.
Online UPS range by capacity
1–10kVA single phase (1:1)
- Techfine HAMBURG series (high frequency, transformerless): HH1101 (1kVA), HH1102 (2kVA), HH1103 (3kVA), HH1106 (6kVA), HH1110 (10kVA).
- G-Mac BREMEN series (high frequency): HH1101 (1kVA), HH1102 (2kVA), HH1103 (3kVA), HH1106 (6kVA), HH1110 (10kVA).
- Reros W1 / G11 / B1 series: W-1KS/KL, W-2KS/KL, W-3KS/KL (1–3kVA); G11-6KS/KL and G11-10KS/KL (6–10kVA); B1-1KS/KL, B1-3KS/KL, B1-6KS/KL.
10–80kVA (single and three phase)
- Reros DRESDEN series (low frequency, transformer-based): LX1110 (10kVA), LX1115 (15kVA), LX1120 (20kVA).
- Reros G11 series: G11-15KL (15kVA), G11-20KL (20kVA), G11-30KL (30kVA).
- Three-phase input models (3:1 and 3:3) are also available from Techfine, G-Mac and Reros. Contact our engineers to match the right model to your load.
100–600kVA three phase (3:3)
Our online UPS range goes up to 600kVA. For large plants and data centres, contact our engineers and we will recommend the configuration, battery bank and BESS solutions that suit your load.
| Capacity | Phase | DC bus | Typical application | Typical battery bank |
|---|---|---|---|---|
| 1–3kVA | 1-in / 1-out | 24V / 48V / 72V | Server racks, ultrasound, telecom routers, lab instruments | Kenson 12V 26–100Ah (2–6 units) |
| 6–10kVA | 1 or 3-in / 1-out | 192V / 240V | Small data centres, CT workstations, ATM networks | Kenson 12V 40–100Ah (16–20 units) |
| 15–40kVA | 3-in / 3-out | 384V (32 × 12V) | Commercial towers, textile labs, pharma clean rooms | Kenson 12V 100–150Ah (32 units) |
| 60–200kVA | 3-in / 3-out | 384V / 480V | Garment factories, auto-coner lines, hospital surgical wings | Kenson 12V 150–200Ah or LiFePO4 |
| 250–600kVA | 3-phase modular parallel | 384–576V | Banking data centres, semiconductor assembly, heavy manufacturing | Dual-bank VRLA / containerised BESS |
kVA vs kW vs watts: choosing the size
Start by adding up the connected load in watts. Divide that by the power factor (typically 0.8) to get kVA, then add 25% headroom. For motors or compressors with high inrush current, allow a starting surge margin of 2.5× to 3×. For a full walk-through, see the industrial online UPS sizing guide, or try the backup calculator.
Backup time & batteries (long vs short backup)
- KS models (standard backup): internal batteries for 10–15 minutes, enough to bridge to a standby generator.
- KL models (long backup): high-amperage chargers (up to 12–25A) and external DC terminals for VRLA/SMF or LiFePO4 banks, giving 1 to 8 hours of runtime.
We size KENSON® battery banks to match. → Batteries
Brands
G-Mac
German-origin online UPS made in Changzhou, China, under G-Mac Germany authorisation. TNS is the authorised sales partner. → G-Mac
Reros
Online double-conversion UPS made in Changzhou, including the Reros 1P W1 single-phase series (1 to 20kVA). TNS is the importer and sales partner. → Reros
Techfine
Online UPS and industrial EPS from Guangdong Techfine Electronics Co., Ltd., Foshan. → Techfine
Industries
- Factories & textile mills: keep spinning, knitting and CNC lines running through outages and voltage dips. → Factory power backup
- Data centres & server rooms: zero-transfer power and properly sized battery banks.
- Hospitals, banks and telecom: clean power for diagnostics, ATMs and network gear.
Installation, AMC & service
TNS handles the load audit, battery bank sizing, installation and commissioning. After that, our AMC support covers regular maintenance, preventive servicing, troubleshooting and technical support, along with 24/7 on-call field engineering and genuine spare parts. → Service Warranty: TNS products normally carry a 1-year warranty. Units bought through resellers are not covered by a TNS warranty.
FAQ
What is an online UPS? An online UPS powers the load from its inverter all the time, using double conversion (AC → DC → AC). That gives zero transfer time and pure sine-wave output, fully isolated from surges, brownouts and frequency swings. See and.
What do KS and KL mean in model numbers? KS models have internal batteries for 10–15 minutes of backup. KL models are long-backup units with high-capacity chargers for external battery banks, giving 1 to 8 hours.
How do I calculate the kVA I need? Total watts ÷ 0.8 power factor, plus 25% headroom. Motor loads need a 2.5×–3× surge margin. Our engineers can do the sizing for you.
Do you provide AMC for online UPS? Yes. We offer AMC, 24/7 on-call engineers, genuine spares and annual battery impedance testing across Bangladesh.
Can I see prices online? We don't publish prices. Call 01613215054 for a quotation sized to your load.
Need sizing or a project quotation? Request a quote Hotline 01613215054 · 24/7 emergency +8801713215065 · Landline +8802-224405145
Industrial Online UPS Capacity & Sizing Reference Matrix
Engineering sizing guide for standard commercial and industrial applications in Bangladesh.
| Capacity | Phase / Topology | DC Bus Voltage | Target Industrial Application | Recommended Battery Bank |
|---|---|---|---|---|
| 1kVA – 3kVA | 1-Phase In / 1-Phase Out | 24V / 48V / 72V | Server racks, diagnostic ultrasound, telecom routers, lab instruments | Kenson 12V 26Ah–100Ah (2 to 6 units) |
| 6kVA – 10kVA | 1-Phase / 3-Phase In / 1-Out | 192V / 240V | Small enterprise data centers, CT scanner workstations, ATM networks | Kenson 12V 40Ah–100Ah (16 to 20 units) |
| 15kVA – 40kVA | 3-Phase In / 3-Phase Out | 384V (32× 12V) | Commercial towers, textile laboratory machines, pharmaceutical clean rooms | Kenson 12V 100Ah–150Ah (32 units bank) |
| 60kVA – 200kVA | 3-Phase In / 3-Phase Out | 384V / 480V | Garment factories, auto-coner textile lines, heavy hospital surgical wings | Kenson 12V 150Ah–200Ah or Industrial LiFePO4 |
| 250kVA – 600kVA | 3-Phase Modular Parallel | Custom 384V–576V | National banking data centers, semiconductor assembly, heavy manufacturing | Engineered Dual-Bank VRLA / Containerized BESS |
Reros in Bangladesh
Official import and authorized distribution, warranty, and certified technical support.