400KVA Low Frequency Industrial Online UPS Three Phase 300KVA 500KVA With Industrial Isolation Transformer UPS Power Supply

The WTHD’s 400KVA Low Frequency Industrial Online UPS is a high-quality power supply designed to meet the needs of industrial settings. With a three-phase input and output, this UPS is capable of providing reliable and stable power to critical equipment. The 300KVA to 500KVA range makes it suitable for a variety of applications, ensuring that your operation runs smoothly without any interruptions.

One of the standout features of this UPS is its industrial isolation transformer, which provides added protection and ensures that the output power is clean and consistent. This is especially important in industrial environments where power fluctuations and electrical noise can cause damage to sensitive equipment.

The low frequency design of this UPS also sets it apart from other power supplies on the market. Low frequency technology is known for its reliability and efficiency, making it the preferred choice for critical applications. The WTHD’s 400KVA Low Frequency Industrial Online UPS delivers consistent power output, even during peak demand periods, ensuring that your equipment remains operational at all times.

In addition to its performance and reliability, the WTHD’s 400KVA Low Frequency Industrial Online UPS is also user-friendly and easy to install. The compact design allows for flexible installation options, while the intuitive interface makes it simple to monitor and control the UPS. This ensures that your operation can quickly and easily adapt to changing power requirements.

The WTHD’s 400KVA Low Frequency Industrial Online UPS is a top-of-the-line power supply that is perfect for industrial applications. With its high-quality construction, reliable performance, and user-friendly design, this UPS is a smart investment for any business looking to protect its critical equipment and ensure uninterrupted operations. Experience the difference that the WTHD’s 400KVA Low Frequency Industrial Online UPS can make for your business today

Industrial Online UPS					WTHD-U-33300	WTHD-U-33400	WTHD-U-33500
Rated capacity - KVA/KW					300/240	400/320	500/400
Main Input			Phase	Three-phase five-wire - 3L+N+PE
				Input voltage (Vac)	380/400/415
				Voltage range (Vac)	±25%
				Frequency range (Hz)	45~65
				Power factor	>0.95 with filter
Bypass Input			Phase	Three Phase Three Wire - 3L + N + PE
				Input voltage (Vac)	380/400/415
				Voltage range (Vac)	+10%,+15%,+20% (can be set) ; -10%,-20%,-30% - can be set
				Frequency range (Hz)	±2%（±0.5%, +1%, ±2%, ±3% can be set
Output			Voltage (Vac)	380/400/415 ±1%
				Power factor	0.8
				Frequency - Hz	Automatically track bypass frequency
				Waveform	Sine wave THDV less than 2% - pure linear load
				Switching time (ms)	0 ms
				Overall efficiency	≥95%
				Overload capacity	105%~110%: 60min to bypass; 110%~125%: 10min to bypass; >125%: 10s to bypass
Battery			Battery voltage (Vac)	(Standard 384) / 396/408 can be customized
Environment			Operating temperature (°C)	-10~40
				Storage temperature (°C)	-25^55 - without battery
				Relative humidity	0～95% - no frosting
				Working altitude	< 1500m, use derating according to GB/T3859.2
				Noise (dB)	<70<>			<75<>
Other features			Alarm function	Output overload, mains abnormality, UPS fault, battery undervoltage, etc
				Protective function	Output short circuit, overload, over temperature, battery under voltage, output over and under voltage, fan failure alarm
				Communication  function	Standard: RS232/RS485  optional: SNMP/JBUS/MODBUS/Dry Contact
Mechanical features			Dimensions (W*D*H mm)	840*1035*1800	1200*1000*1800	1400*1000*1900
				Net weight (kg)	1750	2000	3600
				Executive standard	YD/T1095-2017

Shenzhen Weitu Hongda Industrial Co., Ltd. was established in 2015 with a registered capital of Capital 51 million. It is a national key high-tech enterprise and a specialized, Special new enterprise. We focus on new energy customization. Our products cover high-frequency UPS, industrial UPS, module UPS, EPS power supply, voltage regulator, solar inverter, etc. Outdoor energy storage, etc. Our products are widely used in data centers, medical Nursing, transportation and railways, the petrochemical industry, and other fields.

We can provide OEM and ODM customization services according to customers' requirements

We look forward to your cooperation. Thank you

Q1: Are you a factory or a trading company?

A: We are a manufacturing factory, we focus on OEM and ODM.

Q2: What kind of certification do you have?
---ISO9000, ISO14001, CE, ROHS, Thiel, etc.

Q3: Product coverage and industries:
---Industrial online UPS, high frequency online UPS,
Modular UPS 1kVA ~800kVA UPS for any industrial and application.

Q4: About the battery.
Provide one-stop battery solutions; lead-acid and lithium batteries are available.

Q5: Do you accept OEM/ODM?
Yes, the entire series supports ODM/OEM, and the minimum order quantity is flexible.

Q6: About warranty.
---The warranty period is 1 to 3 years, and the battery warranty is 1 to 3 years; differentiate between different products and models.

Q7: Can I participate in bidding projects?
We support large-scale project bidding, authorized manufacturing, project design and more.

Q8: Are there overseas branches?
Currently, the Southeast Asia Division, the Eastern Europe Serbia Division, and the Middle East Division are set up.