What are the protection functions of the inverter power supply?

Features include input under-voltage protection, anti-DC input reverse connection, buffer protection, over-voltage protection, overload protection, short-circuit protection, over-temperature protection, and temperature-controlled fan.

High-Efficiency 220VAC Dual Power Static Transfer Switch 7700W

Name: High-Efficiency 220VAC Dual Power Static Transfer Switch 7700W
Brand: Shenzhen Bwitt Co., Limited
SKU: 2247282645

Guangdong, ChinaShenzhen Bwitt Co., Limited

US$399.00

1-4 Pieces

US$393.00

5-49 Pieces

US$386.00

50+ Pieces

Product specifications

Rated Current

Sample price:US$399.00/piece.Request sample

Product profile

Customization

Available

Output Type

Single

Warranty

1 Year

Model NO.

BVT-STS32D

Output Power

7700W

Input Voltage

220V

Connection Mode

Parallel 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

PWM

Certification

CE, ISO

Brand

Bwitt

Product Name

Static Transfer Switch

Type

Single Phase

Transfer Time

4ms

Feature

Dual Switch

Transport Package

Carton Box

Specification

482*343*44.5mm

Trademark

BWITT

Origin

China

HS Code

8537109090

Production Capacity

5000piece/Year

Key features

Dual Power Input: Supports dual input voltage ranges (90-130V/190-260V) with priority settings.

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

Intelligent Monitoring: LCD display and SNMP/RS485 communication for real-time status monitoring.

Flexible Power Modes: Supports both AC and DC main power supply modes selectable via LCD.

Super Overload Capacity: Withstands 125% overload for 30 minutes and full load startup.

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: ≤1.79h

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:Does the product support SNMP function?

Yes, 90% of BWITT products support SNMP. All products have built-in RS485 communication as standard.

Q:What is RS485?

RS485 is a communication interface that supports real-time data communication, allowing monitoring software to monitor and control the inverter power supply in real time.

Q:How is the inverter load handling capability?

It has super overload capacity, can withstand full load startup, and can switch to bypass power supply when overloaded.

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

Yes, BWITT inverters support AC main power supply and DC main power supply. The mode can be changed via the LCD panel or communication background software.

Q:What will cause power failure and what can be done to resolve?

Check if positive and negative poles are reversed and reconnect after confirming. If it cannot turn on, return the power supply to BWT for inspection and repair.