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HT33 Series Tower Online UPS 60–500kVA
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HT33 Series Tower Online UPS 60–500kVA

Product Description

The HT33 Series Tower Online UPS Is A High-performance Three-phase Uninterruptible Power Supply Designed To Provide Stable, Clean And Dependable Power For Critical Electrical And IT Infrastructure. Available From 60kVA To 500kVA, The Series Combines Advanced Digital Control, High Efficiency And Comprehensive Protection Features To Support Demanding Power Applications.

With System Efficiency Of Up To 96% And An Input Power Factor Greater Than 0.99, The HT33 Series Is Engineered To Improve Power Utilization While Maintaining Low Input Current Distortion. Input Current THDi Remains Below 3%, Helping Reduce Harmonic Pollution And Making The UPS Suitable For Modern Sensitive Equipment.

Advanced Digital Control

The UPS Incorporates three High-speed DSPs With Complete Digital Control, Enabling Accurate System Management And Consistent Power Performance. The Architecture Is Designed To Enhance Overall Reliability While Maintaining Precise Output Voltage And Frequency Regulation.

Its Output Voltage Regulation Is Maintained At 1% For Balanced Loads And 1.5% For Unbalanced Loads, Providing Dependable Power For Sensitive Electronic And Industrial Equipment.

High Efficiency And Power Density

The HT33 Series Delivers Efficiency Of Up To 96% In AC Mode And Up To 99% In Eco Mode, Helping Reduce Energy Losses During Operation. Its High Power Density Allows Substantial Power Capacity Within A Relatively Compact Tower Configuration.

The Series Supports Capacities From 60kVA Through 500kVA, While Parallel Operation Can Extend The System Capacity Up To 1500kVA, Providing A Scalable Solution For Growing Critical-power Requirements.

Comprehensive Protection System

Multiple Protection Mechanisms Help Safeguard The UPS And Connected Equipment Against Abnormal Operating Conditions. The System Includes over-temperature Protection, Overload Protection, Battery Under-voltage Protection, Fan-failure Detection And Short-circuit Protection.

An Integrated Protection Architecture Uses Multiple Sensors To Continuously Monitor Operating Conditions And Respond To Potential Faults. This Makes The UPS Well Suited To Environments Where Power Continuity And Equipment Protection Are Essential.

Intelligent Battery Management

The HT33 Series Features smart Charging Control Designed To Optimize Battery Charging And Help Extend Battery Service Life. Its Battery System Operates At ±240V DC And Supports An Even Number Of Batteries From 32 To 44, With 40 Batteries Specified As The Standard Configuration.

The battery Cold-start Function Allows The UPS To Be Started From Battery Power When Normal Utility Input Is Unavailable, Adding Flexibility During Power Interruptions.

User-Friendly Interface

Operation And Monitoring Are Simplified Through A Touch-screen LCD Interface Combined With LED Indicators And A Keyboard. Depending On Capacity, The System Uses A 7-inch Touch LCD For 60–200kVA Models Or A 10.4-inch Touch LCD For Higher-capacity Configurations.

Communication Options Include RS232, RS485, Programmable Dry Contacts And USB, While Optional SNMP Connectivity Can Support Network-based Monitoring And Management.

Convenient Front Access

The HT33 Series Uses A Design Focused On Serviceability, Including full Front Access For Maintenance. Its Modular Subsystem Architecture Helps Simplify Field Servicing And Can Reduce Maintenance Complexity In Critical Installations.

Flexible Installation And Expansion

The UPS Supports Three-phase Input And Output Configurations With Neutral And Ground Connections. Its Parallel Capability Allows Multiple Units To Be Combined For Higher Capacity And System Scalability, With Optional Parallel Kits Available.

Optional Accessories Include SNMP Cards, Parallel Kits, Surge Protection Devices (SPD), LBS And Dust Filters, Allowing The Configuration To Be Adapted To Different Operating Environments.

Suitable Applications

The HT33 Series Is Designed For Applications Where Uninterrupted, High-quality Power Is Critical, Including:

  • Internal Data Centers (IDC)
  • Internet Service Provider (ISP) Facilities
  • IT Rooms
  • Service Centers
  • Precision Instruments
  • Intelligent Equipment
  • Other Critical Electronic And Industrial Systems

Product Specifications

Product Series:

HT33 Series

Product Type:

Tower Online UPS

Capacity Range:

60–500kVA

Model Range:

HT33060–HT33500

System Capacity:

Up to 1500kVA with parallel operation

Input Phase:

3 Phase + Neutral + Ground

Input Voltage:

380 / 400 / 415V AC

Input Voltage Range:

304–478V AC at full load

Input Frequency:

50 / 60Hz

Input Frequency Range:

40–70Hz

Input Power Factor:

>0.99

Input THDi:

Output Voltage:

380 / 400 / 415V AC

Voltage Regulation:

1% balanced load; 1.5% unbalanced load

Output Frequency:

50 / 60Hz

Frequency Precision:

0.1%

Output Power Factor:

1

Output THD:

Crest Factor:

3:1

Battery Voltage:

±240V DC

Battery Quantity:

40 standard; 32–44 selectable

Battery Voltage Precision:

±1%

Charger Power:

Up to 20% of output active power

Battery Cold Start:

Optional

AC Mode Efficiency:

Up to 96%

Eco Mode Efficiency:

Up to 99%

Battery Mode Efficiency:

Up to 96%

Display:

Touch LCD + LED + keyboard

Display Size:

7-inch / 10.4-inch touch LCD

Protection Class:

IP20

Communication Interfaces:

RS232, RS485, USB, programmable dry contact

Optional Accessories:

SNMP card, parallel kit, SPD, LBS, dust filter

Operating Temperature:

0–40°C

Storage Temperature:

-40–70°C

Relative Humidity:

0–95%, non-condensing

Altitude:

Up to 1000m without derating

Noise Level:

65dB at 100% load; 62dB at 45% load

Applicable Standards:

IEC/EN 62040-1, IEC/EN 62040-2, IEC/EN 62040-3

Tag:
HT33 Series UPSTower Online UPS60kVA UPS500kVA UPSThree Phase UPSOnline UPSData Center UPSHigh Efficiency UPSModular UPSEsskeyem UPS

Frequently Asked Questions (FAQs)

The HT33 Series is a three-phase online UPS designed to provide stable, uninterrupted and high-quality power to critical electrical and electronic equipment. Available from 60kVA to 500kVA, it uses advanced digital control technology, high-speed DSPs and comprehensive protection functions. It is suitable for data centers, IT rooms, ISP facilities, service centers, precision instruments and other applications where reliable power continuity is essential.

The HT33 Series combines high efficiency, excellent input power quality and dependable protection in a scalable tower configuration. It delivers efficiency of up to 96%, an input power factor above 0.99 and input current THDi below 3%. Intelligent battery management helps improve battery performance, while multiple protection functions help safeguard connected equipment. Its modular design, front-access maintenance and optional parallel capability also make it practical for demanding installations.

The HT33 Series is available in a broad capacity range from 60kVA to 500kVA. Models include HT33060, HT33080, HT33090, HT33100, HT33120, HT33150, HT33200, HT33250, HT33300, HT33400 and HT33500. The UPS can also support parallel operation for applications requiring expansion up to 1500kVA, making the series suitable for both medium-scale and larger critical power environments.

The UPS incorporates multiple protection and monitoring functions designed to maintain safe and reliable operation. These include over-temperature protection, overload protection, battery under-voltage protection, fan-failure detection and short-circuit protection. Its controlled output voltage and frequency help provide consistent power to sensitive loads, while the online UPS architecture continuously supports critical equipment against interruptions and variations in the utility supply.

The HT33 Series is designed for locations where power reliability and continuity are important. Typical applications include internal data centers, internet service provider facilities, IT rooms, service centers, precision instrumentation and intelligent equipment. Its high power density, smart battery charging, scalable parallel configuration, communication interfaces and optional SNMP monitoring make it suitable for modern critical-power infrastructure requiring dependable long-term operation.