What will causes Power failure and what can be done to resolve?

Check whether the positive and negative poles are reversed, and reconnect after confirming. If it cannot be turned on, please return the power supply back to BWT for inspection & repairing.

What are the protection functions of the inverter power supply?

Input under-voltage protection, anti-DC input reverse connection, buffer protection, over-voltage protection, overload protection, short-circuit protection, over-temperature protection, temperature-controlled fan, etc.

3kVA 5kVA 6kVA UPS 48V Battery Input with Fan Fault Detection and Over Temp Protection

Name: 3kVA 5kVA 6kVA UPS 48V Battery Input with Fan Fault Detection and Over Temp Protection
Brand: Shenzhen Bwitt Co., Limited
SKU: 2281513975

Guangdong, ChinaShenzhen Bwitt Co., Limited

US$515.00

1 Piece

Product specifications

Output Power

Product profile

Customization

Available

Phase

Single Phase/Three Phase

Type

On-line

Protection

Overvoltage

Application

Industry

Classification

Lighting/Power

Standby Time

Dont Have Inbuilt Battery

Standby UPS

Sine Wave Output UPS

Output Capacity

3kw/5kw

Equipment Mode

Centralized Model

Brand

Neutral

Output Wave

Pure Sine Wave

Transfer Time

0ms~4ms

Thd

Parallel Function

Support

Max Parallel Unit

Transport Package

Carton

Specification

Copper, Iron, Aluminum

Trademark

N/M

Origin

China

HS Code

850440200

Production Capacity

3000 Unit/Year

Key features

Pure Sine Wave Output: Delivers clean power with 3% THD for sensitive equipment protection.

Zero Transfer Time: Seamless switching between AC main and DC bypass in 0ms to 4ms.

Wide Input Voltage Range: Accepts 176V to 270VAC input for stable operation in unstable grids.

High Parallel Capacity: Supports up to 8 units in parallel for scalable power expansion.

Comprehensive Protection: Features over-voltage, over-temperature, short-circuit, and reverse connection protection.

Flexible Communication: Built-in RS485 with optional RS232, USB, and SNMP for remote monitoring.

Dual Power Mode: Supports both AC main and DC main power supply modes selectable via LCD.

Company profile

Importers and ExportersYears of Export ExperienceSelf-brandedIn-stock Capacity

Shenzhen Bwitt Co., Limited

Guangdong, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2020-02-01Nearest Port: shenzhen, guangzhuo, FoshanAverage Response Time: ≤2.03h

AI-Powered supplier vetting

SummaryThe supplier demonstrates OEM/ODM and broad customization capabilities, supported by stated experience, R&D personnel, quality-control staff, ISO 9001 certification, and multiple production lines. Export orientation is substantial, with 71%–90% of sales from exports and export activity beginning in 2020. However, no overseas warehouses, showrooms, agents, branches, or offline trade-show participation are reported, and no main export-market presence is recorded. Service procedures exist, but corrective-action and complaint-handling records are not documented. Financial credibility cannot be reliably assessed because the provided financial figures are non-informative and monetary data is excluded.

Supplier typeThe supplier presents itself as a manufacturer with OEM experience, three reported production lines, and both agency-assisted and self-operated export channels. Its product range includes rack-mount inverters, switching power supplies, static transfer switches, and DC converters.

CertificationsThe supplier reports ISO 9001 certification and CE product certification capability. These certifications provide explicit evidence of quality-system and product-compliance credentials, although no further certification scope or validity details are supplied.

R&D capabilityThe supplier reports new products during the past year, offers ODM services, and has 6–10 R&D engineers. However, it reports no available SDK, so software-development integration capability is not demonstrated.

Production capacityThe supplier reports two production lines in one manufacturing record and three in another, plus ongoing quantity reconciliation for each batch or batch production. It also describes controls covering materials, SMT, assembly, aging tests, inspection, and packing, indicating established manufacturing and quality-control processes.

Customization capabilityThe supplier explicitly provides customization from samples, designs, full customization, minor customization, and flexible customization. Its stated OEM experience and ODM availability further support broad product-development flexibility.

Product Q&A

Q:Do you have charging solution?

Yes, BWT suitable for battery charging usage. In this application, our rectifier system is widely used for N+1 power supply and battery charging system management.

Q:Does the product support the SNMP function?

Yes, 90% BWITT product support SNMP. And all product built-in RS485 communication for standard.

Q:What is RS485?

RS485 is a communication interface, support real-time data communication function, and can use the monitoring software to monitor and control the working condition of the inverter power supply in a real-time manner.

Q:How about the inverter load?

Super overload capacity, can withstand full load startup, with bypass switch, can switch to bypass power supply when overloaded.

Q:Can I choose the mains mode for my inverter power supply?

Yes, BWT inverter support AC main power supply and DC main power supply, 2 modes can be selected flexibly, and the mode can be changed through the LCD panel or the communication background software.