TM66E Large Modular Three-Phase UPS 400–1200 kVA
TM66E Large Modular 400–1200 kVA is ATENCO’s flagship high-capacity modular three-phase online UPS platform, built from 100 kVA hot-swappable power modules for large data centers, telecom backbone sites, industrial infrastructure and mission-critical facilities. It delivers output PF 1.0, up to 97% AC-mode efficiency, ECO / HECO modes up to 99%, VRLA or lithium battery system support, 360–600 Vdc battery bus, charger current up to 100 A, Power Walk-In, Load Bus Synchronization (LBS), wave recording on fault, key-component lifecycle management and N+X parallel operation by model group (up to 6 units on 400–600 kVA; up to 4 units on 800–1200 kVA).
Flagship Modular UPS for High-Capacity Critical Power
TM66E Large Modular 400–1200 kVA is the flagship high-capacity modular three-phase UPS platform in the TM66E series, designed for large data centers, telecom core sites, industrial infrastructure and centralized critical-power systems. Built from 100 kVA hot-swappable power modules, it delivers output PF 1.0, up to 97% AC-mode efficiency, ECO / HECO modes up to 99%, VRLA or lithium battery support with 360–600 Vdc bus, charger current up to 100 A, wave recording on fault events and key-component lifecycle management.
HECO Mode + Active Power Filter
HECO mode supports high-efficiency operation up to 99% by configuration. In HECO operation, the inverter remains active to provide reactive power compensation and active power filtering, helping improve input power factor and input power quality. Automatic inverter control supports load transfer when bypass conditions are abnormal.
100 kVA Hot-Swappable Power Modules
Power, bypass, monitoring and ECU control modules are hot-swappable. 100 kVA power modules can be added, removed or replaced within cabinet capacity, supporting scalable system design and reduced-downtime maintenance by approved procedure. Cabinet capacities scale from 400 to 1200 kVA by module count: 4 / 5 / 6 / 8 / 10 / 12 modules.
PF 1.0 Output / Up to 97% Efficiency
Output PF 1.0 (kW = kVA) delivers full usable capacity from 400 kVA to 1.2 MW. AC-mode efficiency reaches up to 97%, while ECO and HECO modes are available up to 99% by configuration for energy saving in suitable utility conditions.
Parallel up to 6 / 4 Units & LBS
Direct parallel operation supports capacity expansion or N+X redundancy, subject to project design: up to 6 units for 400–600 kVA configurations and up to 4 units for 800–1200 kVA configurations. Shared-battery parallel configuration is supported. Load Bus Synchronization (LBS) supports dual-bus or coordinated multi-system critical-power architectures.
7″ Touchscreen HMI & SNMP / Modbus
7-inch TFT touchscreen is standard, with 10-inch optional by configuration. The system supports mimic diagram, history logs and fault logs. Communications include RS-232, RS-485, parallel, LBS, BMS and dry contact. Optional TM550 SNMP card supports network monitoring, and Modbus RTU via RS-485 supports BMS / SCADA integration. FW / SW online upgrade is supported in bypass mode.
Wide Input + Lifecycle Management
Wide 138–485 Vac input range supports unstable utility conditions, with 138–324 Vac operation at 40% load and 323–485 Vac operation at 100% load. Input PF ≥0.99 and input THDi ≤3% help reduce upstream electrical stress. Power Walk-In supports generator-backed sites when properly sized. Wave recording on fault events and key-component lifecycle management support diagnostics and preventive maintenance planning.
Expand Your TM66E Large Modular 400–1200 kVA System
Optional system configurations for TM66E Large Modular 400–1200 kVA include 100 kVA hot-swappable power modules, VRLA or lithium battery systems, high-current charging, N+X parallel operation with LBS, TM550 SNMP monitoring, BMS integration, HECO mode and advanced lifecycle / waveform diagnostics – specified according to UPS capacity, battery design and project redundancy requirements.
100 kVA Hot-Swappable Power Modules
100 kVA power modules support scalable system capacity from 400 kVA to 1.2 MW. Modules can be added, removed or replaced within cabinet capacity, supporting capacity expansion and reduced-downtime maintenance by approved procedure.
VRLA / Lithium Battery System
Supports external VRLA lead-acid or lithium battery systems with 360–600 Vdc battery bus by project configuration. Lithium systems require compatible cabinet design, BMS communication and project-specific charging / runtime settings confirmed during sizing.
High-Current Charging up to 100 A
Charger current is available up to 100 A by model and configuration, supporting high-capacity external battery systems and faster recharge requirements after discharge. Battery cabinet quantity, runtime, charging current and BMS integration are sized by ATENCO engineers.
Parallel Kit / LBS Synchronization
Parallel kits support capacity expansion and N+X redundancy: up to 6 units for 400–600 kVA configurations and up to 4 units for 800–1200 kVA configurations. Load Bus Synchronization (LBS) supports dual-bus or coordinated multi-system critical-power designs.
TM550 SNMP / BMS / Lifecycle Diagnostics
Optional TM550 SNMP card enables network monitoring, web access, event alerts, shutdown management and NMS / BMS integration. The platform also supports wave recording on fault events and key-component lifecycle management for service diagnostics and preventive maintenance planning.
Technical Details
Complete specifications for the TM66E Large Modular 400–1200 kVA flagship modular three-phase UPS platform with HECO mode, lithium battery support and lifecycle management.
| Specification | 400 | 500 | 600 | 800 | 1000 | 1200 kVA |
|---|---|---|---|---|---|---|
| Full Name | TM66E Large Modular Three-Phase UPS 400–1200 kVA | |||||
| Topology | Online Double-Conversion (VFI), 3-level transformerless, hot-swappable modules | |||||
| Phase | 3P–3P (3Ph+N+PE in / 3Ph+N+PE out) | |||||
| Form Factor | Large modular cabinet; dimensions vary by model and switch configuration (see Physical tab) | |||||
| Typical Module Configuration | 4 × 100 | 5 × 100 | 6 × 100 | 8 × 100 | 10 × 100 | 12 × 100 kVA |
| Power Module Sizes | 100 kVA hot-swappable module, 3U, 440 × 755 × 130 mm | |||||
| Output Power Factor | 1.0 (kW = kVA) | |||||
| Display | 7″ TFT touchscreen standard / 10″ optional with mimic diagram, history and fault logs | |||||
| Battery Support | External VRLA lead-acid or lithium battery system; 360–600 Vdc battery bus; sized by project configuration | |||||
| Operating Modes | Online, ECO, HECO, Bypass, Battery, Maintenance | |||||
| Parallel | Up to 6 units for 400–600 kVA; up to 4 units for 800–1200 kVA; shared-battery parallel supported | |||||
| Load Bus Synchronization (LBS) | Supported for dual-bus / synchronized multi-system designs by configuration | |||||
| Generator Compatible | Yes – Power Walk-In limits start-current impact on generator capacity | |||||
| Standards | IEC/EN 62040-1, IEC/EN 62477-1 safety; IEC/EN 62040-2 + IEC 61000 series EMC; IEC 62040-3:2021 performance; CE by series | |||||
| Specification | 400 | 500 | 600 | 800 | 1000 | 1200 kVA |
|---|---|---|---|---|---|---|
| Nominal Input Voltage | 380 / 400 / 415 Vac (3Ph+N+PE) | |||||
| Input Voltage Range | 138–485 Vac; 138–324 Vac at 40% load, 323–485 Vac at 100% load | |||||
| Input PF | ≥0.99 at 100% linear load | |||||
| Input THDi | ≤3% at 100% linear load | |||||
| Bypass Voltage Range (Max) | +25% (Optional +10% / +15% / +20%); 230 V: +20%; 240 V: +15% | |||||
| Bypass Voltage Range (Min) | −45% (Optional −10% / −15% / −20% / −30%) | |||||
| Bypass Frequency Range | 50 / 60 Hz ±10% | |||||
| Output Voltage | 380 / 400 / 415 Vac (3Ph+N+PE), ±1% regulation | |||||
| Output PF | 1.0 (kW = kVA) | |||||
| Output THDv (linear) | ≤1% | |||||
| Output THDv (non-linear) | ≤3% | |||||
| Output Frequency (Line mode) | Synchronized with input within selected tracking range; ±1% / ±2% / ±4% / ±5% / ±10% optional | |||||
| Output Frequency (Battery) | 50 / 60 ±0.1% | |||||
| Crest Factor | 3:1 | |||||
| Transfer Time | 0 ms AC-to-battery; automatic bypass protection by operating condition | |||||
| Efficiency (AC Mode) | Up to 97% by configuration | |||||
| Efficiency (ECO Mode) | Up to 99% | |||||
| Efficiency (HECO Mode) | Up to 99% by configuration | |||||
| Specification | Value |
|---|---|
| Battery Type | External VRLA lead-acid maintenance-free or lithium / LiFePO4 battery system by project configuration |
| Battery Voltage / DC Bus | 360–600 Vdc by project configuration |
| Charging Current (Max) | 100 A max, by model / configuration |
| Charger Type | 3-stage smart charger |
| Battery System | External battery cabinets; VRLA strings or lithium / LiFePO4 cabinets by project configuration |
| Battery Cabinet Design | By project – VRLA battery strings or LiFePO4 cabinets with compatible BMS |
| Battery Temp Sensor | Optional via BAT_T port |
| BMS Communication | Required for lithium battery cabinets; optional for VRLA installations by project configuration |
| DC Cold Start | Supported when battery system is installed and available |
| Lithium Battery Support | Supported by project configuration – LiFePO4 lithium battery cabinet with compatible BMS communication and project-specific charging / runtime settings. 100 A charger supports high-capacity battery recharge requirements when properly configured. |
Exact battery configuration (VRLA strings or lithium / LiFePO4 cabinet, total runtime) is sized by ATENCO engineers according to UPS capacity, load level, battery chemistry and backup-time target. Lithium battery support requires compatible cabinet design, BMS communication and project-specific charging / runtime settings.
| Component | Specification |
|---|---|
| UPS Cabinet Dimensions | 800 / 1400 / 1800 × 1000 × 2000 mm by model and switch configuration |
| UPS Cabinet Weight | 305–920 kg by model and switch configuration |
| Power Module (W × D × H) | 440 × 755 × 130 mm (3U) |
| Power Module Weight | 100 kVA module = 52.5 kg |
| Form Factor | Large modular cabinet; switch configuration by project |
| Protection Class | IP20 |
| Colour | Black |
Switch configuration codes: S = without / single bypass switch; F = with mains, bypass, maintenance-bypass and output switches. Exact dimensions and weights are confirmed at project design.
Noise Levels
| Cabinet Size | Noise (dB at 1 m) |
|---|---|
| 400–500 kVA | <73 dB |
| 600–800 kVA | <74 dB |
| 1000–1200 kVA | <75 dB |
Noise level varies by cabinet and module configuration. Cable sizing, external breaker ratings and protection coordination must follow local electrical code, installation method, cable type, ambient temperature, grouping, voltage drop, upstream / downstream protection and project electrical design.
| Interface | Details |
|---|---|
| Display | 7″ TFT touchscreen standard / 10″ optional with mimic diagram and event history |
| RS-232 | Serial port for local monitoring software |
| RS-485 | For Modbus RTU communication and BMS / SCADA integration by configuration |
| Parallel Port | For N+X parallel operation: up to 6 units for 400–600 kVA, up to 4 units for 800–1200 kVA |
| LBS Port | Load Bus Synchronization for dual-bus / synchronized multi-system designs |
| BMS Port | Battery Management System interface |
| Dry Contact Port | Configurable contact port for status signalling |
| EPO & REPO | Standard – Emergency Power Off / Remote Emergency Power Off |
| BAT_T Port | Optional battery temperature sensor connection |
| Intelligent Slot Cards (Optional) | TM550 SNMP card (network monitoring, web access, NMS / BMS integration); relay card (dry-contact integration) |
| FW / SW Upgrade | Online upgrade in bypass mode |
| Software | Local monitoring software via RS-232 / RS-485; network monitoring via optional TM550 SNMP card |
Inverter Mode Overload
| Load Level | Duration | Action |
|---|---|---|
| 105–110% | 60 minutes | Sustained within overload limit |
| 110–125% | 10 minutes | Overload protection |
| 125–150% | 1 minute | Overload protection |
| >150% | 1.2 seconds | Shut down inverter |
Bypass Mode Overload
| Load Level | Duration | Action |
|---|---|---|
| ≤125% | Long term | Sustained on bypass |
| >1000% | 100 ms | Protection trip / bypass protection |
System Protection & Alarm
| Function | Behaviour |
|---|---|
| Overheat (Line Mode) | Switch to Bypass |
| Overheat (Battery Mode) | Shut down UPS immediately |
| Self-Diagnostics | Upon Power-On and Software Control |
| LCD Alarms | Line Voltage, Bypass Mode, Battery Low, Battery Fault, Overload, UPS Fault |
| Audible Alarms | Line Failure, Battery Low, Overload, System Fault |
| EPO Action | Shut down UPS immediately |
| Parameter | Specification |
|---|---|
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | −25°C to 55°C |
| Humidity | 0–95% RH non-condensing |
| Altitude | <1000 m without derating; derating required above 1000 m |
| Clearance | Minimum front and rear clearance per installation manual for ventilation and maintenance |
| Safety Standards | IEC/EN 62040-1, IEC/EN 62477-1 |
| EMC Standards | IEC/EN 62040-2 (IEC 61000-2-2, IEC 61000-4-2/-3/-4/-5/-6/-8/-11) |
| Performance Standards | IEC 62040-3:2021, EN IEC 62040-3:2021 |
| Cooling | Forced air (fan); modular module cooling |
| Installation | Indoor use only |
| Applications | Large data centers, telecom core sites, industrial infrastructure, utility and transportation control rooms, government critical infrastructure and centralized UPS systems requiring 400 kVA to 1.2 MW modular three-phase power, VRLA or lithium battery support, HECO mode and lifecycle diagnostics. |
Application note: TM66E series is not recommended for regenerative / energy-feedback loads such as CT machines, semiconductor cutting machines, elevators or motor-driven equipment with front-end feedback inverters – unless reviewed and approved by ATENCO engineering.
Ideal For
TM66E Large Modular 400–1200 kVA is designed for centralized high-capacity three-phase critical-power systems requiring 100 kVA hot-swappable modules, PF 1.0 output, VRLA or lithium battery support, 360–600 Vdc battery bus, HECO / ECO high-efficiency operation, lifecycle diagnostics and scalable N+X redundancy. It is best suited for large data centers, telecom backbone sites, industrial process facilities, utility control infrastructure, transport hubs and public-sector critical-power systems requiring 400 kVA to 1.2 MW modular UPS capacity.
Large Data Centers & Co-Location Facilities
Flagship modular UPS for large data centers, co-location campuses, high-density server halls, storage clusters and centralized IT power rooms requiring 400 kVA to 1.2 MW capacity, 100 kVA hot-swappable modules, PF 1.0 output, VRLA / lithium battery systems and N+X redundancy.
Telecom Backbone & Core Switching Sites
High-capacity modular UPS for telecom backbone infrastructure, core switching centers, MSC sites, transmission hubs, submarine-cable landing facilities and national network nodes requiring centralized three-phase backup, Power Walk-In generator compatibility and LBS-ready redundancy.
Large Industrial Process & Automation Facilities
Centralized modular UPS protection for large industrial plants, process-control rooms, DCS / SCADA infrastructure, instrumentation systems and automation control centers supplied from plant three-phase distribution – excluding regenerative or energy-feedback loads unless reviewed and approved by ATENCO engineering.
Utility, Energy & Substation Control Infrastructure
Large modular UPS for utility control centers, primary substations, grid-monitoring rooms, energy infrastructure, power-distribution control systems and mission-critical communication networks requiring high-capacity centralized backup and lifecycle diagnostics.
Airports, Rail & Transport Infrastructure
High-capacity UPS for airport technical rooms, rail and metro control centers, tunnel communication systems, traffic management centers and transport operation facilities requiring 400 kVA to 1.2 MW modular backup, generator-compatible operation and N+X redundancy.
Government, Defense & Public-Sector Critical IT
Flagship modular UPS for government data centers, defense technical facilities, public-safety command centers, emergency communication rooms and national infrastructure IT requiring centralized three-phase power continuity, SNMP / BMS integration and scalable modular redundancy.
Need Built-In Batteries, Smaller Modules or Mid-Range Scalability?
Compare TM66E Large Modular 400–1200 kVA with smaller TM66E platforms: Compact 30–75 kVA with built-in VRLA battery modules, Modular 10–150 kVA with 10–30 kVA modules and external VRLA batteries, or Modular 40–600 kVA with 40 / 50 / 60 kVA modules and VRLA / lithium support.
TM66E Large Modular 400–1200 kVA UPS FAQ
Answers about TM66E Large Modular 400–1200 kVA flagship modular UPS architecture, 100 kVA hot-swappable power modules, HECO mode with active power filtering, VRLA / lithium battery support, N+X parallel operation and Load Bus Synchronization.
What is the TM66E Large Modular 400–1200 kVA UPS?
What is the difference between TM66E Large Modular 400–1200 kVA and TM66E Modular 40–600 kVA?
Can the TM66E Large Modular 400–1200 kVA be paralleled for redundancy?
What battery options does the TM66E Large Modular 400–1200 kVA support?
Can the TM66E Large Modular 400–1200 kVA run on a generator?
What monitoring options does the TM66E Large Modular 400–1200 kVA support?
What is LBS synchronization on the TM66E Large Modular 400–1200 kVA?
Does TM66E Large Modular 400–1200 kVA support lithium batteries?
Is TM66E Large Modular 400–1200 kVA hot-swappable?
Which applications is the TM66E Large Modular 400–1200 kVA not recommended for?
Why choose TM66E Large Modular 400–1200 kVA for large data centers?
Size Your TM66E Large Modular 400–1200 kVA UPS Project
Share your three-phase load list, target backup time, redundancy plan, site voltage, generator details, VRLA / lithium battery preference, BMS requirement and monitoring requirements. ATENCO will recommend the suitable TM66E Large Modular 400–1200 kVA configuration with 100 kVA hot-swappable power modules, external VRLA or lithium battery system, parallel topology by model group, Load Bus Synchronization (LBS), HECO mode, lifecycle diagnostics and TM550 SNMP / BMS monitoring options matched to your project.
Send Project Requirements
Share three-phase load in kW / kVA, target runtime, redundancy requirement, site nominal voltage, generator details, VRLA / lithium battery preference, BMS requirement and monitoring preferences such as TM550 SNMP, RS-485 / Modbus RTU, BMS or NMS integration.
Receive UPS Selection & Sizing
ATENCO engineers recommend the suitable TM66E Large Modular configuration: 400 / 500 / 600 / 800 / 1000 / 1200 kVA cabinet built from 100 kVA hot-swappable power modules, external VRLA or lithium battery system, parallel topology by model group, LBS design, HECO mode, lifecycle diagnostics and matching TM550 SNMP / BMS monitoring options.