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.

125A Static Transfer Switch 31kVA Rack Sts

Name: 125A Static Transfer Switch 31kVA Rack Sts
Brand: Shenzhen Bwitt Co., Limited
SKU: 2265088335

Guangdong, ChinaShenzhen Bwitt Co., Limited

US$820.00

1-49 Pieces

US$810.00

50-99 Pieces

US$800.00

100+ Pieces

Sample price:US$820.00/piece.Request sample

Product profile

Customization

Available

Output Type

Single

Warranty

1 Year

Model NO.

BWT-STS125DM

Output Power

31 kVA

Input Voltage

220V

Connection Mode

Series Switching Power Supply

Starting Mode

Self-excited Switching Power Supply

Voltage Regulating Mode

Width Modulation Type

Power Supplying System

Terminal Power Distribution Equipment

Energy Transmission

Two-way Transmission

Modulation System

Duel AC to AC

Certification

CE, ISO

Brand

Bwitt

Product Name

Static Transfer Switch

Type

Single Phase

Transfer Time

4ms

Feature

Duel Switch

Transport Package

Carton Box

Specification

482*343*88mm

Trademark

BWITT

Origin

China

HS Code

8537109090

Production Capacity

5000piece/Year

Key features

Ultra-Fast Transfer Time: Automatic load transfer between power sources in less than 4 milliseconds.

High Efficiency: Output efficiency reaches up to 99% for optimal energy transmission.

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

Intelligent Monitoring: LCD display and SNMP communication for real-time status monitoring.

Wide Voltage Range: Supports 90-130V and 190-260V input ranges with flexible settings.

Super Overload Capacity: Can withstand 125% load for 30 minutes and full load startup.

Low Noise Operation: High frequency inverter power supply noise is kept below 55dB.

Global Certifications: Certified with CE, ISO9001, EN5009, and IEC60950 standards.

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: ≤1.83h

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.