TM33E Three-Phase Tower UPS 10–40 kVA
TM33E is a transformer-less online double-conversion VFI three-phase tower UPS for data centers, industrial automation, telecom, healthcare facility IT and critical infrastructure projects. It accepts three-phase input and delivers protected three-phase output, with IGBT topology, full DSP control, output PF 1.0, 0 ms AC-to-battery transfer, wide input tolerance, generator-compatible input frequency, 7-inch TFT touchscreen and parallel operation up to 4 units by configuration. Available in 10 / 15 / 20 / 30 / 40 kVA models with internal-battery or external-battery configurations by model.
Engineered for 3:3 Mission-Critical Power
Transformer-less online double-conversion three-phase UPS architecture for data centers, industrial automation, healthcare facility IT, telecom and critical infrastructure projects requiring protected three-phase output.
3-Phase In / 3-Phase Out (3:3)
Accepts 380 / 400 / 415 Vac three-phase input (3Ph+N+PE) and delivers protected 380 / 400 / 415 Vac three-phase output with ±1% regulation for data center IT, industrial automation, telecom, healthcare facility IT and critical infrastructure loads.
Online Double-Conversion VFI
Transformer-less online UPS topology with IGBT rectifier, IGBT inverter and full DSP control provides pure sine wave output and 0 ms AC-to-battery transfer for sensitive three-phase critical loads. Automatic bypass protection operates according to system condition.
PF 1.0 Output / Up to 94.5% Efficiency
Output PF 1.0 (kW = kVA) provides full usable kW capacity. Online efficiency reaches up to 94.5% on selected models, while input PF ≥0.99 and input THDi ≤3% help reduce upstream electrical stress.
Wide Input & Generator Compatibility
Wide input tolerance supports unstable utility supply and generator-backed sites: 208–478 Vac for 10–30 kVA models and 323–478 Vac for 40 kVA. Auto-sensing input frequency supports 45–55 Hz / 54–66 Hz operation by configuration.
Parallel up to 4 Units
Up to 4 TM33E units can be configured in parallel for capacity expansion or N+X redundancy, subject to model configuration and project design.
7″ TFT Touchscreen / Dual Intelligent Slots
7-inch TFT touchscreen HMI provides on-unit monitoring and configuration. Dual intelligent slots support TM550 SNMP and / or relay card options for remote monitoring, NMS / BMS integration and dry-contact signalling by configuration.
Expand Your System
Accessories for TM33E runtime extension, VRLA battery cabinets, remote monitoring and parallel redundancy – available by configuration.
External Battery Cabinet
External TC-series VRLA battery cabinets support long-runtime TM33E configurations. Cabinet model, battery quantity and DC bus voltage are selected according to UPS capacity, load level, runtime target and project design.
VRLA Battery System
VRLA battery strings are selected according to TM33E capacity, DC bus configuration, load level and target backup time. Use batteries of the same brand, type, capacity and production batch for consistent string performance.
TM550 SNMP Card
Optional TM550 SNMP network card enables remote UPS monitoring, web access, event alerts and NMS / BMS integration. Dual intelligent slots support TM550 SNMP and / or relay card options by configuration.
Parallel Kit
Parallel cable / kit supports connecting up to 4 TM33E units for N+X redundancy or capacity expansion. Parallel cabling and configuration must follow the installation procedure.
Technical Details
Complete specifications for the TM33E 10–40 kVA three-phase tower UPS series.
| Specification | 10 kVA | 15 kVA | 20 kVA | 30 kVA | 40 kVA |
|---|---|---|---|---|---|
| Full Name | TM33E Three-Phase Tower Online UPS | ||||
| Topology | Online Double-Conversion (VFI), IGBT, DSP Control | ||||
| Phase | 3P–3P (Three Phase In / Three Phase Out) | ||||
| Form Factor | Tower | ||||
| Capacity | 10 kVA / 10kW | 15 kVA / 15kW | 20 kVA / 20kW | 30 kVA / 30kW | 40 kVA / 40kW |
| Output Power Factor | 1.0 (kW = kVA) | ||||
| Display | 7” Touchscreen TFT HMI | ||||
| Operating Modes | Normal (Online), ECO, Bypass, Battery, Maintenance | ||||
| Parallel | Up to 4 units (N+X redundancy, optional parallel kit) | ||||
| Generator Compatible | Yes | ||||
| Standards | CE; IEC / EN 62040-1; IEC / EN 62040-2 (EMC); LVD by series | ||||
| Specification | 10 kVA | 15 kVA | 20 kVA | 30 kVA | 40 kVA |
|---|---|---|---|---|---|
| Nominal Input Voltage | 380 / 400 / 415 Vac (3Ph + N + PE) | ||||
| Input Voltage Range | 208–478 Vac | 323–478 Vac | |||
| Input Derating | 305–478 Vac full load; 208–304 Vac derated operation | 323–478 Vac operating range | |||
| Input PF | ≥0.99 | ||||
| Input THDi | ≤3% at 100% non-linear load | ||||
| Input Frequency | 45–55 Hz / 54–66 Hz auto-sensing | ||||
| Output Voltage | 380 / 400 / 415 Vac (3Ph + N + PE), ±1% regulation | ||||
| Output PF | 1.0 (kW = kVA) | ||||
| Output THDv | ≤2% linear / ≤5% non-linear | ||||
| Output Frequency | Synced to input in line mode; 50 / 60 Hz ±0.1 Hz in battery mode | ||||
| Transfer Time | 0 ms (AC-to-Battery); automatic bypass protection by operating condition | ||||
| Crest Factor | 3:1 | ||||
| Dynamic Voltage Transient | ≤±5% | ||||
| Efficiency, AC Mode | ≥93.5% | ≥94.5% | ≥94.5% | ≥93.5% | ≥93.5% |
| Efficiency, ECO Mode | Available for energy saving in stable utility conditions by model / configuration | ||||
| Bypass Breaker | 20 A | 32 A | 40 A | 63 A | 100 A |
| Specification | Details |
|---|---|
| Battery Type | 12 V VRLA lead-acid maintenance-free |
| Battery Configuration | Internal or external battery configuration by model |
| Internal Battery Models | S models with internal battery compartment by configuration |
| Long-Run Models | L models use external battery cabinets |
| DC Bus Voltage | Configured according to UPS capacity and battery design |
| Charger Current | Model-dependent; selected according to battery capacity and project sizing |
| External Battery Cabinets | TC-series external VRLA battery cabinets by project configuration |
| Battery Runtime | Sized according to load, battery capacity and target backup time |
| Battery Life | 3–5 years typical at 25 °C; actual life depends on ambient temperature, cycling, discharge depth and maintenance conditions |
For exact internal-battery counts, DC bus values, charger currents and external cabinet specifications, refer to the TM33E 10–40 kVA datasheet and the External Battery Cabinet Manual in the Downloads section, or contact ATENCO engineers for project sizing.
Physical – S Model / Internal Battery Configuration
| Specification | 10 kVA | 15 kVA | 20 kVA | 30 kVA | 40 kVA |
|---|---|---|---|---|---|
| Form Factor | Tower | ||||
| Dimensions (W×D×H) | 250×868×900mm | ||||
| Weight without batteries | 48 kg | 147 kg | 147 kg | 225 kg | 225 kg |
| Noise | <55dB | <58dB | <61dB | <64dB | |
| Colour | Black | ||||
Physical – L Model / External Battery Configuration
| Specification | 10 kVA | 15 kVA | 20 kVA | 30 kVA | 40 kVA |
|---|---|---|---|---|---|
| Form Factor | Tower | ||||
| Dimensions (W×D×H) | 250×868×900mm | ||||
| UPS weight without external battery cabinet | 42 kg | 45 kg | 45 kg | 66 kg | 73 kg |
| Noise | <55 dB | <58 dB | <61 dB | <64 dB | |
Cable Sizing (minimum cross-section)
| Cable | 10 kVA | 15 kVA | 20 kVA | 30 kVA | 40 kVA |
|---|---|---|---|---|---|
| AC Input | 4 mm² | 6 mm² | 8 mm² | 12 mm² | 16 mm² |
| AC Output | 4 mm² | 6 mm² | 8 mm² | 12 mm² | 16 mm² |
| DC Battery | 10 mm² | 16 mm² | 20 mm² | 35 mm² | 35 mm² |
| Ground | 4 mm² | 6 mm² | 8 mm² | 8 mm² | 10 mm² |
Cable sizes are minimum reference values from the product specification. Final cable and breaker sizing must follow local electrical code, installation method, ambient temperature and project protection design.
| Interface | Details |
|---|---|
| USB | Standard USB for Muser4000 monitoring software (9600bps, 8N1) |
| RS-232 | DB9 Male serial (9600bps, 8N1) – Pin2=TXD, Pin3=RXD, Pin5=GND |
| RS-485 | RJ45 port for Modbus RTU and BMS / SCADA integration |
| Intelligent Slots | 2× slots – supports TM550 SNMP card and/or Relay card |
| Dry Contact Port | 4-pin: Battery Low, AC Fail, Turn Off UPS, Common GND |
| Parallel Ports | 2× parallel ports (ring topology, up to 4 units) |
| EPO / REPO | Emergency Power Off / Remote Emergency Power Off |
| Events Port | Events logging connector |
| BAT_T Port | RJ45 port for optional battery temperature sensor / dynamic charging |
| Maintenance Bypass | External maintenance bypass switch; internal / built-in bypass availability by model / configuration |
| Display | 7” colour touchscreen TFT HMI |
| Software | Muser4000 (USB/RS-232), SNMP_Management, SNMP_Protector |
| Optional | Parallel kit, Relay card, TM550 SNMP card, Temperature sensor, External bypass PDU |
Line Mode – Overload Capacity
| 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 |
Battery Mode – Overload Capacity
| Load Level | Duration | Action |
|---|---|---|
| ≤110% | 10 minutes | Sustained on battery |
| ≤125% | 1 minute | Shutdown |
| ≤150% | 5 seconds | Shutdown |
| ≥150% | Immediate | Immediate shutdown |
Bypass Mode Note
| Condition | Behaviour |
|---|---|
| Load >95% | UPS remains on bypass and will not retransfer to inverter until load drops below 95%, according to bypass retransfer logic |
| Parameter | Specification |
|---|---|
| Operating Temperature | 0°C to 40°C (derate 12% per 5°C above 40°C, max 50°C) |
| Storage Temperature | −25°C to 55°C |
| Humidity | 0–95% RH non-condensing |
| Altitude Derating | 1500m=100%, 2000m=95%, 2500m=90%, 3000m=85%, 3500m=80%, 4000m=75% |
| Clearance | Min 100cm front, 80cm rear for ventilation & maintenance |
| Safety Standards | IEC / EN 62040-1; LVD by series |
| EMC Standards | IEC / EN 62040-2; IEC 61000-4-2 / -3 / -4 / -5 / -6 / -8 |
| Cooling | Forced air (fan) |
| Installation | Indoor use only |
| Applications | Data centers, telecom, healthcare facility IT, industrial automation, transportation, energy and critical infrastructure |
Ideal For
TM33E 10–40 kVA is designed for three-phase critical loads from 10 to 40 kW at PF 1.0 – small and medium data centers, industrial control systems, telecom network rooms, healthcare facility IT and building infrastructure requiring protected 3-phase output.
Small & Medium Data Centers
3:3 online UPS protection for server racks, PDUs, storage arrays, network cores, firewalls and high-density IT loads in small to medium data centers, server rooms and edge data center deployments.
Industrial Automation & Process Control
Clean three-phase power for PLC panels, SCADA systems, industrial PCs, automation control cabinets, instrumentation and process-control equipment supplied from plant three-phase distribution.
Telecom Switching & Network Nodes
Online three-phase UPS protection for telecom switching rooms, transmission equipment, access network nodes, microwave systems and core network infrastructure requiring stable 3-phase input / output power.
Healthcare Facility IT & Laboratory Systems
Three-phase UPS protection for healthcare facility IT, laboratory instruments, clinical monitoring infrastructure, imaging support systems and technical rooms – subject to project electrical and certification requirements.
Security Command & Control Rooms
Three-phase UPS support for centralized NVR / VMS server clusters, video-management workstations, access-control servers, monitoring walls and command-room infrastructure.
Commercial Building Critical Infrastructure
Protected three-phase power for building network rooms, BMS panels, access-control systems, security servers, tenant IT infrastructure and facility control equipment in commercial or government buildings.
Need 3:1 Output, Rack Format or Higher Capacity?
Compare TM33E 10–40 kVA with related ATENCO online UPS series for three-phase input / single-phase output, rack-mounted 3:3 applications or larger 50–200 kVA three-phase power projects.
3:3 Online Three-Phase Tower UPS 50–200 kVA
- Three-phase input / three-phase output UPS
- Higher-capacity platform for large data centers and critical infrastructure
- Output PF 1.0 standard (kW = kVA)
- Parallel operation up to 8 units by configuration
- 7″ touchscreen HMI; VRLA and lithium battery support by configuration
TM33E 10–40 kVA 3:3 UPS FAQ
Answers about TM33E three-phase input / three-phase output tower UPS architecture, 10–40 kVA capacity, PF 1.0 output, parallel operation, battery runtime and monitoring options.
What does TM33E mean?
What is the difference between TM33E 10–40 kVA and TM33E 50–200 kVA?
What is the difference between TM33E and TM31E?
What capacities are available for TM33E 10–40 kVA?
Can TM33E 10–40 kVA run on a generator?
Can TM33E 10–40 kVA be paralleled for redundancy?
What battery runtime options are available for TM33E 10–40 kVA?
What monitoring options does TM33E 10–40 kVA support?
Is TM33E 10–40 kVA transformer-based or transformer-less?
Which applications is TM33E 10–40 kVA not recommended for?
Size Your TM33E Three-Phase UPS Project
Share your three-phase load list, target backup time, redundancy plan, site voltage, generator details and monitoring requirements. ATENCO will recommend the suitable TM33E configuration – 10, 15, 20, 30 or 40 kVA, S or L variant – with TC-series battery cabinet, parallel and TM550 SNMP / RS-485 Modbus RTU / relay options matched to your project.
Send Project Requirements
Share three-phase load in kW / kVA, target runtime, redundancy requirement, site nominal voltage, generator details and monitoring preferences such as TM550 SNMP, RS-485 / Modbus RTU, relay, BMS or NMS integration.
Receive UPS Selection & Sizing
ATENCO engineers recommend the suitable TM33E configuration: 10 / 15 / 20 / 30 / 40 kVA, S or L variant, TC-series battery cabinet plan, parallel topology and matching TM550 SNMP, RS-485 / Modbus RTU or relay accessories.