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1KVA Single in single out High Frequency Online Double Conversion UPS

KHZ-H11-1KVA
KHZ-H11-1KVA
KHZ-H11-1KVA
KHZ-H11-1KVA KHZ-H11-1KVA KHZ-H11-1KVA

1KVA Single in single out High Frequency Online Double Conversion UPS

Name: Single Phase High-Frequency UPS Type: Online Double Conversion Brand: CNKHZ Model Name: KHZ-H11-1KVA Power (VA): 1KVA Phase number: 1L+N+Pe Rated Voltage: 208/220/230/240Volts 【Customizable】 Stable voltage range: ± 25% Stable voltage accuracy: ± 1% DC Voltage: 36VDC (External) Switching time: 0ms
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How does a UPS work?

When utility power is normal, the UPS provides power to connected equipment, and charges its internal battery.

Utility
Input Power
UPS
Internal Battery (Charging)
Output Power
Computers
Communication Equipment
Smart Home Devices
NAS
Utility
Input Power
UPS
Internal Battery (Charging)
Output Power
Computers
Communication Equipment
Smart Home Devices
NAS

High-frequency UPS

Online double conversion
External battery

UPS Product

Product Overview

A high-frequency UPS is a power protection device based on high-frequency switching technology. Its core function is to quickly switch to backup power through a built-in energy storage device (such as a battery) when the mains power is interrupted or abnormal, so as to provide stable and uninterrupted power support for the load equipment.

Performance characteristics:

  • High Conversion Efficiency: Utilizing IGBT high-frequency PWM rectification and inversion technology, eliminating the need for a line-frequency transformer, full-load efficiency typically reaches 95%–96% (compared to approximately 88%–92% for line-frequency UPS). High efficiency is maintained even under light loads, resulting in significant energy savings.
  • High efficiency (90%-95%): Reduces energy loss, suitable for data centers and other scenarios.
  • Small Size and Light Weight: Due to its operating frequency (20–100kHz) being much higher than the line frequency (50/60Hz), magnetic components are significantly reduced in size. For the same power output, its size and weight are only 1/3–1/2 that of a line-frequency UPS, facilitating rack mounting or space-constrained environments.
  • High Input Performance: Standard active PFC (Power Factor Correction) ensures an input power factor >0.99 and input harmonic distortion <3%–5%, making it grid-friendly and requiring no additional filtering compensation.
  • Zero-Interruption Switching and Fast Dynamic Response: The online double-conversion architecture achieves 0ms mains/battery switching time and high output voltage and frequency regulation accuracy (e.g., ±1%), suitable for sensitive loads such as servers, communications, and medical applications.
  • Strong trends towards modularity and intelligence: Mainstream products support hot-swappable modules, N+X redundancy, remote monitoring, and battery health management, facilitating expansion and maintenance.

Key Features

  • Double-conversion online design for clean and stable output
  • Intelligent monitoring and multi-protections for safer operation
  • Wide input voltage range for harsh grid conditions
  • High efficiency and energy saving for lower operating cost
  • Modular design for easy maintenance and flexible expansion

Highly flexible and extendable

  • Battery voltage can be chosen based on capacity to meet different requirements, enabling longer backup time and lower system investment.
  • The intelligent battery monitoring function automatically adjusts the charging current, supporting longer discharge times and larger battery capacity.
  • Ultra-wide input voltage and frequency range ensures stable operation even in poor power conditions.
  • Digital control DSP technology with high-quality power components makes the system safe and reliable.

Applications

factory

Industrial
Automation

monitor

Data Center

satellite

Communication
Base Station

medical

Medical
Equipment

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Product Specification

High Performance · High Reliability · Professional-grade Products

Model:KHZ-H11-1KVA
Basic Information
Product Model
KHZ-H11-1KVA
Rated Capacity
1KVA / 800W / 900W / 1000W
Wiring method
1L + N + PE
Input characteristics
Input voltage range (before operation)
±25%
Input voltage range (operating)
220/230/235 Volts【Customizable】
Input frequency
50/60Hz
Bypass input voltage
According to the municipal power supply
Input power factor
0.8/0.9/1.0
Input Current THD
<5%(fully loaded)
Output characteristics
Output voltage range
220/230/235 Volts【Customizable】
Output power factor
0.8 / 0.9 / 1.0
Waveform distortion
<5%(fully loaded)
Switch Time
0 ms
Battery Protection and Charging
Number of battery cells
3
Battery rated voltage
36
Battery and endurance
Customize according to actual needs
Automatic restart
Automatic restart after mains power is restored
DC cold start
Supports voltage above alarm point.
Work environment
Operating temperature
40℃ ~ 45℃
Working humidity
0~95%(Non-condensing)
Storage Temperature
-25℃ ~ 55℃
Noise
≤65 dB
Altitude
>1500 meters requires reduced usage.
Protective function
  • Smart fan speed control Fault detection
  • Battery Abnormal Detection Alarm
  • Adjustable bypass output voltage protection
  • Over-temperature protection (>85℃bypass)
Physical parameters
Dimensions (W×D×H)
145*220*320
Weight
3.8



UPS Selection Criteria

A few key points shall be considered when selecting a UPS based on individual needs.

The Basic Requirements
  • How much power is needed?

    The UPS must be able to handle the total power load of the equipment that requires protection. It is recommended that the output watt capacity of the UPS is 20 - 30% higher than the total wattage of its connected equipment.

  • How much runtime is needed?

    Runtime is the amount of time the UPS can provide battery power for connected equipment when utility power fails. Note that adding more equipment loads will shorten the runtime.

  • How much capacity is needed?

    As business expands, more equipment may need power protection, thus UPS capacity may need to be reserved at first. Use the equipment's power load and required runtime to calculate the suitable reserved capacity.

The Specifications
What is the voltage of the input power source?

Choose a UPS with voltage input that is equivalent to the input power of the equipment. The applicable UPS voltage differs by country, so it is vital to select the UPS with the corresponding voltage level.

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Which UPS topology is the most suitable?

Select the topology based on power needs. There are Standby, Line-Interactive or Online topology for UPS. The decision depends on the level of power protection and energy efficiency required.

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