Are there options for RJ11/RJ45 connectivity?

Yes, RJ11/RJ45 connectivity is available as an optional feature.

What is the input voltage range?

The input voltage range is 165~275VAC with a tolerance of +/-5V.

How does the alarm system work?

The audible alarm sounds every 4 seconds for battery backup and every 1 second for low battery.

St2000 Offline UPS Power Supply Line Interactive Full Bridge UPS Backup Power 2000va UPS 220V with 2 Internal Battery

Name: St2000 Offline UPS Power Supply Line Interactive Full Bridge UPS Backup Power 2000va UPS 220V with 2 Internal Battery
Brand: NINGBO KEMAPOWER ELECTRONICS CO., LTD.
SKU: 865913885

Zhejiang, ChinaNINGBO KEMAPOWER ELECTRONICS CO., LTD.

US$65.00-154.88

1 Piece

Product profile

Customization

Available

Phase

Single Phase

Type

Line Interactive

Model NO.

ST2000

Protection

Short Circuit

Application

Communication

Classification

Lighting/Power

Standby Time

Standard Machine

Standby UPS

Sine Wave Output UPS

Output Capacity

Small Type

Equipment Mode

Decentralized

Brand

Kemapower

Input

110V or 220V +- 20%

Output;

110V or 220V+ - 10%

Wave Form

Transfer Time Less Than 10ms.

Output PF

0.6

Transport Package

Safety Packing

Specification

ST2000

Trademark

KEMAPOWER

Origin

China

HS Code

8504402000

Production Capacity

600, 000PCS/Year

Key features

Super-long Backup Time: Offers extended backup duration ranging from 1.3 to 12 minutes depending on load and battery configuration.

Wide Input Voltage Range: Supports 165-275VAC input with +/-5V tolerance and includes AVR function for stable output.

Fast Transfer Time: Ensures seamless power switching with transfer time under 10ms, typically 4-6ms.

Comprehensive Protection: Features protection against short circuits, overloads, and battery low voltage with fuse and current limiting.

Intelligent Battery Management: Includes cold start, auto restart, and automatic charging capabilities for optimized battery life.

Sine Wave Output: Delivers pure sine wave output during mains mode for sensitive electronic equipment compatibility.

LED Indication & Alarms: Equipped with LED display for status monitoring and audible alarms for battery backup and faults.

RJ11/RJ45 Interface Option: Optional RJ11/RJ45 ports available for remote monitoring and communication integration.

Company profile

NINGBO KEMAPOWER ELECTRONICS CO., LTD.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2007-03-05Nearest Port: Ningbo, ChinaAverage Response Time: ≤10.18hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryThe supplier is identified as a Ningbo-based trading company associated with wholesale and retail, while other records describe factory facilities including five production lines, six to ten quality-control staff, and exports to Southeast Asia, the Middle East, and North America. It reports CE or UL certification for most products, annual customer training, 24/7 online technical service, after-sales support, OEM/ODM services, and new product development. However, formal procedures and records for supplier service assessment, corrective actions, and complaint handling are absent. The supplier has no overseas warehouse, showroom, agent, or branch, and no SDK availability. Sustainability documentation and fire-drill status are unknown. Financial credibility cannot be assessed from the provided year labels alone.

CertificationsThe supplier states that most products have passed CE or UL certification, while its supplier-management-system certification is recorded as “Others.” The evidence supports product-level certification claims but does not identify a specific management-system certificate or coverage for all products.

After-Sales capabilityThe supplier advertises reliable after-sales guarantees, annual customer help and training, 24/7 online technical service, and stated peak/off-season lead times. Nevertheless, it has no written procedures or records for complaint handling, service-capability assessment, or corrective and preventive actions, which is an explicit process deficiency.

R&D capabilityThe supplier reports new-product development during the past year and provides ODM services, demonstrating product-development and design-manufacturing capability. It also reports no available SDK, so software-development support is not evidenced.

Production capacityThe supplier reports five production lines, six to ten quality-control staff, Ningbo factory-related location information, and lead times of within 15 working days off-season and one month during peak season. These details support established production operations, although annual output data is excluded from this assessment because it is monetary information.

Customization capabilityThe supplier explicitly offers customized products, low MOQ service, ODM services, and OEM services for well-known brands. This is direct evidence of both product customization and contract manufacturing capability.