TM33-ET Transformer-Based Three-Phase UPS 10–800 kVA
TM33-ET 10–800 kVA is a transformer-based 3:3 online double-conversion VFI three-phase tower UPS platform for industrial facilities, healthcare technical rooms, government buildings, transportation, energy and infrastructure projects requiring galvanic isolation, neutral re-derivation and robust three-phase power protection. It delivers protected three-phase output at PF 0.9, with transformer-based isolation architecture, dual DSP digital control, 0 ms AC-to-battery transfer, nominal 380 / 400 / 415 Vac input with −25% / +20% tolerance, external VRLA battery support, N+X parallel operation up to 6 units, Load Bus Synchronization (LBS) and generator-compatible power walk-in by configuration. Available in 15 capacity models from 10 to 800 kVA.
Engineered for Transformer-Based Power Isolation
Transformer-based 3:3 online double-conversion three-phase tower UPS architecture for industrial facilities, healthcare technical rooms, government buildings and infrastructure projects requiring galvanic isolation, neutral re-derivation and robust three-phase power protection from 10 to 800 kVA.
Transformer-Based Isolation Architecture
Transformer-based isolation architecture supports galvanic isolation by project configuration, neutral re-derivation and common-mode disturbance reduction for critical facilities supplied from complex or unstable electrical distribution.
Online Double-Conversion VFI + Dual DSP
True online double-conversion VFI topology with dual DSP digital control delivers pure sine wave output and 0 ms AC-to-battery transfer for sensitive three-phase critical loads, with automatic bypass protection according to operating condition.
PF 0.9 Output & Up to 94% Efficiency
Output PF 0.9 delivers protected three-phase power across 15 capacity models from 10 to 800 kVA. AC online efficiency reaches up to 94% by model / configuration, with transformer-based architecture optimized for isolation-focused and industrial critical-power projects.
N+X Parallel up to 6 Units & LBS
Direct parallel operation supports capacity expansion or N+X redundancy up to 6 units, subject to project design. Load Bus Synchronization (LBS) supports dual-bus or coordinated multi-system critical-power architectures.
External VRLA Battery Support
Supports external VRLA lead-acid battery strings with DC bus voltage selected by model group and project configuration. Battery quantity, runtime and charging are sized by project. Optional battery temperature sensor supports dynamic charge adjustment.
Wide Input & Generator Compatibility
Nominal 380 / 400 / 415 Vac three-phase input with −25% / +20% tolerance and 50 / 60 Hz ±5% input frequency supports unstable utility and generator-backed sites. Input power walk-in helps limit inrush and reduce upstream electrical and generator stress.
Expand Your TM33-ET 10–800 kVA System
Optional accessories for TM33-ET remote monitoring, N+X parallel redundancy, external VRLA battery systems, maintenance bypass service and input harmonic filtering – specified according to UPS capacity, isolation requirements and project electrical design.
External VRLA Battery System
TM33-ET supports external VRLA lead-acid battery strings by project configuration. Battery bus voltage, battery quantity, runtime and charger settings are selected according to UPS capacity, model group and target backup time.
SNMP Network Card
Optional SNMP card enables network monitoring, web access, event alerts, shutdown management and NMS / BMS integration. RS-485 / Modbus RTU supports BMS / SCADA integration by configuration.
Parallel Kit / LBS Synchronization
Parallel kits support capacity expansion and N+X redundancy up to 6 units by configuration. Load Bus Synchronization (LBS) supports dual-bus or coordinated multi-system designs for critical power architectures.
External Maintenance Bypass
External maintenance bypass systems support UPS isolation for service or replacement while maintaining load supply, when installed and operated according to the approved maintenance procedure.
Harmonic Filter (Optional)
Optional input harmonic filter helps improve input current harmonics and upstream electrical compatibility for projects with sensitive infrastructure, generator supply or harmonic-limit requirements by configuration.
Technical Details
Complete specifications for the TM33-ET 10–800 kVA transformer-based three-phase tower UPS series.
10–160 kVA Models
| Specification | 10 | 20 | 30 | 40 | 60 | 80 | 100 | 120 | 160 |
|---|---|---|---|---|---|---|---|---|---|
| Full Name | TM33-ET Transformer-Based Three-Phase Tower UPS | ||||||||
| Topology | Online Double-Conversion (VFI), Transformer-Based, Dual DSP | ||||||||
| Phase | 3P–3P (Three Phase In / Three Phase Out) | ||||||||
| Capacity (kVA/kW) | 10/9 | 20/18 | 30/27 | 40/36 | 60/54 | 80/72 | 100/90 | 120/108 | 160/144 |
| Output PF | 0.9 | ||||||||
| Parallel | N+X up to 6 units | ||||||||
| Load Bus Synchronization (LBS) | Supported for dual-bus / synchronized multi-system designs by configuration | ||||||||
| Generator Compatible | Yes – Power Walk-In by configuration | ||||||||
200–800 kVA Models
| Specification | 200 | 300 | 400 | 500 | 600 | 800 |
|---|---|---|---|---|---|---|
| Full Name | TM33-ET Transformer-Based Three-Phase Tower UPS | |||||
| Topology | Online Double-Conversion (VFI), Transformer-Based, Dual DSP | |||||
| Capacity (kVA/kW) | 200/180 | 300/270 | 400/360 | 500/450 | 600/540 | 800/720 |
| Output PF | 0.9 | |||||
| Parallel | N+X up to 6 units | |||||
| Load Bus Synchronization (LBS) | Supported for dual-bus / synchronized multi-system designs by configuration | |||||
| Generator Compatible | Yes – Power Walk-In by configuration | |||||
| Specification | All Models (10–800 kVA) |
|---|---|
| Nominal Input Voltage | 380 / 400 / 415 Vac (3PH+PE) |
| Input Voltage Range | Nominal 380 / 400 / 415 Vac, tolerance −25% / +20% |
| Input Frequency | 50 / 60 Hz ±5% |
| Input PF | ≥0.97 with optional input filter |
| Output Voltage | 380 / 400 / 415 Vac ±1% (3PH+N+PE) |
| Output Frequency | 50 / 60 Hz ±0.05% |
| Output PF | 0.9 |
| Output THDv | ≤2% / ≤1% linear load, model-dependent |
| Crest Factor | 3:1 max |
| Transfer Time | 0 ms (Line → Battery) |
| Efficiency (AC Mode) | Up to 94% by model / configuration |
| Bypass Voltage | 380 / 400 / 415 Vac (3PH+N+PE) |
| Bypass Freq Range | ±10% (±2.5% / ±5% / ±10% / ±20% adjustable) |
| Bypass Voltage Upper | +20% (+10% / +15% / +20% adjustable) |
| Bypass Voltage Lower | −40% (−10% / −20% / −30% / −40% adjustable) |
Detailed per-model efficiency values are listed in the product datasheet. Exact model performance must be confirmed against the factory specification and project operating conditions.
| Specification | 10–160 kVA | 200–400 kVA | 500–800 kVA |
|---|---|---|---|
| Battery Type | External VRLA sealed lead-acid battery strings by project configuration | ||
| Battery Bus Voltage | 384 Vdc (360–384 Vdc) | 384 Vdc (360–408 Vdc) | 480 Vdc for 500–600 kVA; 600 Vdc for 800 kVA |
| Flexible Configuration | Battery quantity, runtime and charger settings adjustable by model group and project design | ||
| Battery Management | Intelligent auto float / boost charging, discharge prediction, self-test | ||
| Temperature Sensor | Optional battery temperature sensor for dynamic charge adjustment | ||
10–160 kVA Models
| Model | Dimensions (W×D×H mm) | Net Weight | Noise |
|---|---|---|---|
| ET10 | 350×650×1050 | 145kg | <58dB |
| ET20 | 430×830×1100 | 165kg | <58dB |
| ET30 | 430×830×1100 | 204kg | <58dB |
| ET40 | 430×830×1100 | 255kg | <58dB |
| ET60 | 720×690×1400 | 320kg | <68dB |
| ET80 | 720×690×1400 | 450kg | <68dB |
| ET100 (6P) | 890×790×1600 | 556kg | <68dB |
| ET100 (12P) | 1515×830×1600 | 1300kg | <68dB |
| ET120 (6P) | 890×790×1600 | 591kg | <68dB |
| ET120 (12P) | 1515×830×1600 | 1370kg | <68dB |
| ET160 (6P) | 890×790×1600 | 693kg | <68dB |
| ET160 (12P) | 1400×1000×1900 | 1450kg | <68dB |
200–800 kVA Models
| Model | Dimensions (W×D×H mm) | Net Weight | Noise |
|---|---|---|---|
| ET200 (6P) | 1200×800×1600 | 780kg | <72dB |
| ET200 (12P) | 1400×1000×1900 | 1645kg | <72dB |
| ET300 (6P) | 1400×1000×1900 | 1030kg | <72dB |
| ET300 (12P) | 1640×1000×1900 | 1715kg | <72dB |
| ET400 (6P) | 1400×1000×1900 | 1560kg | <72dB |
| ET400 (12P) | 1640×1000×1900 | 2395kg | <72dB |
| ET500 (12P) | 2580×1000×1900 | 1640kg | <75dB |
| ET600 (12P) | 2800×1040×1900 | 1690kg | <75dB |
| ET800 (12P) | 3280×1040×1900 | 3510kg | <75dB |
6P / 12P refer to model configuration variants from the factory specification. Final cabinet dimensions and weight must be confirmed according to selected model and project configuration.
| Interface | Details |
|---|---|
| RS-232 | Standard serial communication for local monitoring / service |
| RS-485 | Standard Modbus RTU communication for BMS / SCADA integration |
| EPO | Emergency Power Off button on UPS panel, protected against accidental operation |
| Dry Contact | 10–160 kVA: optional; 200–800 kVA: standard with 8 signals including remote EPO, by configuration |
| SNMP Card | Optional SNMP adapter for remote network monitoring |
| LED Display | Input, Inverter, Bypass, Battery, Output and UPS status indicators |
| LCD Display | LED + LCD standard with input / output voltage, frequency, power, PF, battery status, load %, history and settings; 7” touchscreen HMI optional by configuration |
| LBS Port | Load Bus Synchronization for dual-bus or STS-supported system designs |
| Optional | Harmonic filter, SNMP adapter, LBS cables, battery temperature sensor, bypass current-sharing inductor |
Overload Capacity – All Models
| Load Level | Duration | Action |
|---|---|---|
| ≤110% | 60 minutes | Sustained |
| ≤125% | 10 minutes | Transfer to bypass |
| ≤150% | 1 minute | Transfer to bypass |
| >150% | Immediate | Transfer to bypass |
| Parameter | Specification |
|---|---|
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | −25°C to 55°C |
| Humidity | 0–95% RH non-condensing |
| Altitude | <1500 m at full load; derating above 1500 m by configuration |
| Safety Standards | IEC/EN 62040-1; IEC 62477-1 |
| Performance / EMC Immunity | IEC/EN 62040-3 performance; IEC/EN 62040-2 and IEC 61000 series EMC immunity |
Ideal For
TM33-ET 10–800 kVA is designed for three-phase critical-power projects requiring transformer-based galvanic isolation, neutral re-derivation, common-mode disturbance reduction and robust PF 0.9 three-phase output – from industrial automation and healthcare technical rooms to government, transportation, energy and infrastructure facilities.
Industrial Automation & Process Control
Transformer-based three-phase UPS protection for PLC / SCADA systems, industrial control rooms, instrumentation panels, automation servers and process-control infrastructure where galvanic isolation, neutral re-derivation and electrical separation from upstream distribution are part of the project design.
Healthcare Facility Technical Rooms
Transformer-based UPS protection for healthcare facility IT, laboratory systems, imaging support infrastructure, clinical monitoring networks and technical rooms requiring galvanic isolation – subject to project electrical, isolation and certification requirements.
Government & Defense Infrastructure
Transformer-based three-phase UPS for government facilities, defense command centers, public infrastructure and critical buildings where galvanic isolation, neutral re-derivation and robust centralized power continuity are required by electrical design.
Transportation, Energy & Utility Infrastructure
High-capacity transformer-based UPS for transportation networks, substations, utility control rooms, energy infrastructure and grid-side communication systems requiring galvanic isolation, generator-compatible operation and centralized critical-power continuity.
Data Centers Requiring Isolation
Three-phase UPS protection for data center segments, server halls and infrastructure rooms where the electrical design specifies transformer-based galvanic isolation, neutral re-derivation or robust separation from upstream distribution.
Telecom & Broadcast Sites
Transformer-based three-phase UPS for telecom switching centers, broadcast facilities, transmission rooms and backbone network sites requiring galvanic isolation, stable PF 0.9 output and generator-compatible operation in unstable utility environments.
Need Transformer-Less, Smaller Capacity or Modular Scalability?
Compare TM33-ET 10–800 kVA with related ATENCO three-phase UPS platforms for transformer-less 3:3 tower projects, PF 1.0 high-capacity systems or modular scalable critical-power designs up to 1.2 MW.
TM33-ET 10–800 kVA UPS FAQ
Answers about TM33-ET 10–800 kVA transformer-based 3:3 three-phase tower UPS architecture, galvanic isolation, PF 0.9 output, parallel operation, VRLA battery systems, monitoring and Load Bus Synchronization.
What is the TM33-ET 10–800 kVA UPS?
What is the difference between TM33-ET and the standard TM33E range?
Can the TM33-ET be paralleled for redundancy?
What battery options does the TM33-ET support?
Can the TM33-ET run on a generator?
What monitoring options does the TM33-ET support?
What is Load Bus Synchronization on the TM33-ET?
Which applications is the TM33-ET not recommended for?
Specify Your TM33-ET Transformer-Based UPS Project
Share your three-phase load, target backup time, isolation requirement, redundancy plan, site voltage, generator details and monitoring requirements. ATENCO engineers will recommend the suitable TM33-ET configuration – 10, 20, 30, 40, 60, 80, 100, 120, 160, 200, 300, 400, 500, 600 or 800 kVA – with VRLA battery system, parallel topology, Load Bus Synchronization (LBS), optional harmonic filter and SNMP / relay-card options matched to your project.
Send Project Requirements
Share three-phase load in kW / kVA, isolation / neutral re-derivation requirement, target runtime, redundancy requirement, site nominal voltage, generator details and monitoring preferences such as SNMP, RS-485 / Modbus RTU, relay-card, BMS or NMS integration.
Receive UPS Selection & Sizing
ATENCO engineers recommend the suitable TM33-ET configuration: 10 / 20 / 30 / 40 / 60 / 80 / 100 / 120 / 160 / 200 / 300 / 400 / 500 / 600 / 800 kVA, VRLA battery system, parallel topology, LBS design, optional harmonic filter and matching SNMP or relay-card accessories.