40kVA/40kW 3-Phase Online Double Conversion Rack UPS, Long-Run (External Batteries)

RackPower 40kVA Three Phase Online Rack UPS – Long-Run

True Online Double Conversion | Three Phase | 40000VA/40000W | 4RU | Model TT040ELR

RackPower’s 40kVA three-phase rack UPS packs true online double-conversion protection into 4RU, for data rooms, server rooms and edge sites where rack space matters. It connects to external battery banks sized to your backup requirement, and mounts in a standard 19-inch rack or stands alone as a tower. With a true output power factor of 1.0, up to 96.8% online efficiency, a 3-level topology and full digital control, it delivers continuous, clean, regulated power with zero transfer time.

Key Features & Benefits

True Output Power Factor of 1.0

• Delivers the full rated power – 40000W from 40kVA – with no compromise on capacity.

High Online Efficiency – Up to 96.8%

• 3-level topology and full digital control reduce energy waste, minimise heat (approx. 1322W at full load) and cut electricity costs.

High Power Density – 40kW in 4RU

• Mounts in a standard 19-inch rack (URK02 sliding rail kit available), or installs as a tower with support bases.

Long-Run Design with 8kW Charger

• No internal batteries. Connects to an external ±240VDC battery bank (default 40 × 12V blocks per string), with a charger rated at 20% of output (8kW) to recharge large battery banks.

Wide Input Voltage Range (304–478Vac)

• Operates reliably on unstable mains or generator supply without switching to battery, preserving battery health. Continues to run down to 228Vac with power derating.

Clean Input – PF >0.99, THDi <2%

• Minimal impact on the upstream supply and generator, with no need for oversized input cabling or switchgear.

Full Three Phase Output

• Three phase in / three phase out (3/3), delivering the full 40kVA rating across all three phases.

Intelligent Battery Management

• Extends battery life through smart charging (2.25V/cell float, adjustable 2.2–2.35V/cell) and real-time battery diagnostics.

Self-Aging Function

• Enables full-load testing without external load banks, saving energy and simplifying commissioning and maintenance.

7-Inch Touch LCD

• Real-time system monitoring and control through an intuitive touchscreen with LED status indicators.

Robust Overload Capacity

• 110% for 1 hour, 125% for 10 minutes and 150% for 1 minute, with a crest factor of 3:1.

Comprehensive Communications

• USB, RS232, RS485, Ethernet, input and output dry contacts, EPO, temperature sensor input and cold start as standard. Intelligent slot for the UTTSNMP network card or UTTAS400 dry contact card.

Parallel Capable

• Supports parallel operation for N+1 redundancy or added capacity with the optional parallel kit.

RCM Approved

• Approved for installation in Australia and New Zealand, and built to IEC 62040-1, IEC 62040-2 and IEC 62040-3.

Technical Specifications

• Model: TT040ELR
• Rated power: 40kVA / 40kW
• Topology: Online double conversion
• Configuration: 3/3, full three phase
• Input: 3P+N+PE, 380/400/415Vac (L-L), 40–70Hz
• Input voltage range: 304–478Vac at full load; 228–304Vac with derating from 100% to 50%
• Input power factor: >0.99; THDi <2% (linear load)
• Max input current: 64A per phase
• Output: 380/400/415Vac (L-L), 50/60Hz, ±1% voltage accuracy, 120° ±0.5° phase accuracy
• Rated output current: 60A per phase
• Output THDu: <1% linear load, <5% non-linear load
• Efficiency: Up to 96.8% (online mode)
• Battery: External, ±240VDC (default 40 × 12V blocks per string)
• Charger capacity: 20% of rated output (8kW)
• Max battery current: 95A
• Recommended breakers: 80A 3P input, bypass and output; DC 125A battery
• Recommended cables: 16mm² input, bypass and output; 35mm² battery; 10mm² PE
• Display: LED + 7-inch touch LCD
• Communications: USB, RS232, RS485, Ethernet, dry contacts, EPO, temperature input, cold start
• Options: UTTSNMP SNMP card, UTTAS400 AS400 card, parallel kit, air filter, URK02 sliding rail kit
• Standards: IEC 62040-1, IEC 60950-1, IEC 62040-2, IEC 62040-3
• Approval: RCM (Australia & New Zealand)
• IP rating: IP20
• Noise (1m): 65dB at 100% load, 62dB at 45% load
• Operating environment: 0–40°C, 0–95% RH non-condensing
• Rack height: 4RU
• Dimensions (W × D × H): 440 × 810 × 175mm
• Net weight: 60kg

Ideal For:

• Data Centres, Server and Comms Rooms, Edge Sites, Industrial Automation, Healthcare, Finance, Education, Government, Broadcasting, and more.