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UPS (Uninterruptible Power Supply)

6 Series · 6 Models

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QDTB® UPS (Uninterruptible Power Supply)

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UPS (Uninterruptible Power Supply) Overview

Online double-conversion UPS systems continuously regenerate clean AC power with zero transfer time, so connected loads see no interruption during an outage. QDTB units span 600 VA to 30 kVA with pure sine wave output, smart battery charging, LED/LCD display, and RS232/USB communication. The CK series (C1K to C30K) covers office to data center, protecting computers, networking gear, medical devices, industrial control, and security systems.

6
Product Series
6+
Available Models
ISO
Certified Quality

Available Series

CK - QDTB UPS (Uninterruptible Power Supply)

CK Series

The CK series online double-conversion UPS systems provide clean, uninterrupted power supply with zero transfer time for critical loads and data center applications.

6 models
EPS Emergency Power Supply - QDTB UPS (Uninterruptible Power Supply)

EPS Emergency Power Supply Series

EPS (Emergency Power Supply) systems provide automatic AC backup power for fire protection and emergency loads during a mains failure, using inverter technology with a battery bank and automatic transfer. Available in lighting-type (for emergency lighting and evacuation signs) and power-type (for fire pumps, smoke exhaust fans, and elevators) configurations from 1 to 500 kW, single-phase 220V and three-phase 380V output.

0 models
Industrial Frequency UPS - QDTB UPS (Uninterruptible Power Supply)

Industrial Frequency UPS Series

Industrial frequency UPS systems are three-phase online double-conversion units built with an output isolation transformer and IGBT rectifier, designed for harsh industrial environments and heavy loads. Rated 10–400 kVA with 380/400/415V three-phase input and output, they provide galvanic isolation, high overload capacity, and full parallel redundancy (N+1) for critical process loads.

0 models
Modular UPS - QDTB UPS (Uninterruptible Power Supply)

Modular UPS Series

Modular UPS systems deliver N+X scalable power protection by hot-swappable power modules mounted in a rack frame, allowing capacity to grow with load without replacing the whole system. Rated 10–300 kVA, three-phase online double-conversion, with redundant power modules, shared battery or distributed battery options, and online module replacement for data centers and IT rooms.

0 models
Standby Line Interactive UPS - QDTB UPS (Uninterruptible Power Supply)

Standby Line Interactive UPS Series

Standby and line-interactive UPS provide economical battery backup with automatic voltage regulation (AVR) for PCs, networking and small office equipment. Rated 600 VA–3 kVA, they protect against outages and voltage fluctuations with fast transfer to battery.

0 models
Rack Mount UPS - QDTB UPS (Uninterruptible Power Supply)

Rack Mount UPS Series

Rack mount UPS provide space-efficient battery backup in a 19-inch rack form factor for servers, network and IT equipment. Rated 1–10 kVA, online double-conversion or line-interactive, with hot-swappable batteries and network management for data center racks.

0 models

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EXW (FOB Qingdao)
$130,000
Range $119,600 ~ $140,4008%)
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Related Engineering Calculators

Free sizing and pricing tools for this product category.

Application Scenarios

Data Centers & Servers

Clean, continuous power for servers and storage during outages.

Medical Equipment

Uninterrupted supply for life-critical and diagnostic equipment.

Networking & IT

Keeps routers, switches and telecom gear online through disturbances.

Industrial Control

Protects PLC and process control systems from power loss.

Security Systems

Maintains CCTV, access control and alarms during outages.

Office & Retail

Battery backup for point-of-sale and office systems.

Technical Advantages

1

Online Double Conversion

Continuous power regeneration with zero transfer time on outage.

2

Pure Sine Wave

Clean output compatible with all load types including motors.

3

Smart Battery Management

Intelligent charging extends battery life and reports health.

4

Communication Ports

RS232/USB for monitoring and graceful shutdown of servers.

FAQ - UPS (Uninterruptible Power Supply)

What is the difference between online and offline UPS?
An online UPS continuously regenerates power with zero transfer time and full conditioning. An offline (line-interactive) UPS switches to battery on outage with a brief transfer delay.
How do I size a UPS?
Sum the VA of connected loads and add 20-30% headroom. For servers, factor in power factor and startup surge.
How long will the battery last?
Runtime depends on load and battery capacity. Typical UPS batteries provide 5-15 minutes at full load, enough for orderly shutdown.

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