Block B, Baohui Industrial Park, No. 66 Shuotai Road, Lihu Community, Xinhu Street, Guangming District, Shenzhen
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This industrial-frequency online UPS adopts DSP full digital control technology and delivers a clean, stable pure sine wave output. It provides reliable uninterruptible power protection for industrial equipment and critical loads.
A power frequency uninterruptible power supply is an online UPS with a built-in power frequency transformer. Its core features include strong shock resistance, high power supply quality, and electrical isolation. It also has functions such as noise filtering and voltage stability. It is particularly suitable for situations with complex power grid environments and impact loads, such as industrial, medical, communication, financial, transportation and other situations where power cannot be cut off.
Industrial
Automation
Data Center
Communication
Base Station
Medical
Equipment
| Model | KHZ-G33-250KVA | ||
| Capacity | 250KVA | ||
| Number of parallel machines | Support up to 8 units | ||
| Efficiency | Double conversion mode | 80% | |
| Economy mode | 95% | ||
| Input | Main Input | Rated Voltage | 380/400/415Vac |
| Voltage Tolerance | ±25% | ||
| Wiring | 3L+N+PE / 3L+PE | ||
| Frequency Tolerance | 45~65Hz | ||
| Power Factor | >0.95(Add filter) | ||
| Rated AC input | 380/400/415Vac | ||
| Bypass Input | Nominal Voltage | 380/400/415Vac | |
| Rated AC input | 380/400/415Vac | ||
| Voltage Tolerance | ±25% | ||
| Wiring |
3 phase 5 wires(3L+N+PE) 3 phase 4 wires(3L+PE) |
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| Frequency Tolerance | ±1% | ||
| battery | DC voltage | 384 | |
| quantity | 32 | ||
| install | External | ||
| Output | Nominal Voltage | 380/400/415 ±1% | |
| Power Factor | ≥0.9（Customizable） | ||
| Frequency Tolerance | Automatically track bypass frequency | ||
| Output THD | Sine wave THDV is less than 1% (purelinear load) | ||
| Switching time | 0ms | ||
| Efficiency | ≥95% | ||
| Output voltage regulation accuracy | Steady State | ±1% | |
| Transient | ±5% | ||
| Overload Capacity |
105%~110%:60min Switch to bypass; 110%~125%：10min Switch to bypass; >125%: 10s Switch to bypass |
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| Other parameters | Battery | Battery voltage range | 384(Standard) / 396/408(Customizable) |
| Environment al | Operating Temperature | -10~40℃ | |
| Storage Temperature | -25~55℃(Battery not included) | ||
| Humidity | 0~95% （Non-condensing） | ||
| Altitude | 1500m, If the limit is exceeded, use the derated capacity in accordance with GB/T3859.2. | ||
| Noise Level | <65dB@ 1 meters | ||
| Alarm function | Alarm range | Output overload, AC power abnormality, UPS failure, battery undervoltage | |
| Alarm method | Sound alarm | ||
| Protection function | Output short circuit, overload, over temperature, battery undervoltage, output over-voltage and under-voltage, lightning protection (optional) | ||
| Communicati ons and Management | Communication function | Standard configuration：RS232 Optional configuration：RS485/SNMP/Dry Contact | |
| Display Panel | LCD Display / LED status indicator | ||
| Standard | Electrical performance standards | YD/T1095-2017 | |
| Production Compliance | IEC 60529 ,IEC 60664 , IEC 60755 | ||
| EMC/LVD | EC62040-2,IEC62040-3 | ||
| Certificate | CE ROHS | ||
| Dimensions (W×D×H) | 700*800*1700mm | ||
| Weight | 950Kg | ||
| Optional accessories | SNMP | Support SNMP management and network management | |
When utility power is normal, the UPS provides power to connected equipment, and charges its internal battery.
A few key points shall be considered when selecting a UPS based on individual needs.
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.
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.
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.
