Can the stabilizer be used outdoors?

Our standard models are designed for indoor use (IP20). We offer IP54 enclosures for outdoor installations with additional weatherproofing.

What is the warranty period and support available?

We provide an 18-month warranty and 24/7 technical support to help global clients mitigate power instability risks and protect their critical equipment.

3000va Single-Phase High-Precision Automatic Voltage Regulator

Name: 3000va Single-Phase High-Precision Automatic Voltage Regulator
Brand: Wenzhou Yuanda Electrical Equipment Co., Ltd.
SKU: 2244910615

Zhejiang, ChinaWenzhou Yuanda Electrical Equipment Co., Ltd.

US$30.00

100 Pieces

Product profile

Customization

Available

Current Type

Phase

Three Phase

Model NO.

SVR-3000VA

Frequency Characteristics

Low Frequency

Usage

SVC

Frequency

Low Frequency

Size

Medium

Iron Core Shape

Power Source

Switching Regulated Power Supply

Application Range

Industrial and Mining Enterprises

Brand

Yuanda

Model

SVC 1.5-60kVA

Input Voltage

260V-430V

Output Voltage

380V

Under-Voltage Protection

184V+-4V(Set According to Users Requirement, Gen

Over-Voltage Protection

246+-4V

Efficiency

>90%

Regulating Speed

<1s(When Input Voltage Varies 10%)

Max Rated Output Current

5kVA 20A

Coil

Full Cooper

Power

100%

Meter

LCD

Meter 1

LED

Meter 2

Analog

Frequency 1

50-60Hz

Cover

Iron Cover

Transport Package

1PCS/Carton

Specification

IEC

Trademark

YuanDa

Origin

China

HS Code

8504401990

Production Capacity

50, 000PCS/Month

Key features

Multi-Layer Protection: Built-in safeguards against overvoltage, undervoltage, overload, and short circuits.

Robust Construction: Cold-rolled steel casing with LCD/LED display and secure color-coded terminals.

Global Certifications: Compliant with CE, RoHS, and ISO 9001 standards for international markets.

Customizable Solutions: Offers custom voltage ranges, capacity ratings, and enclosure designs.

24/7 Technical Support: Professional engineering support available via email, phone, or online platform.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceIn-stock Capacity

Wenzhou Yuanda Electrical Equipment Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 32 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤18h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryWenzhou Yuanda Electrical Equipment Co., Ltd. is a China-based manufacturer established in 1993, with 280 employees, more than 10 production lines, 50 quality-control staff, and stated output capacities for voltage stabilizers, miniature circuit breakers, and AC contactors. The supplier reports ISO 9001:2015 certification and product certifications including UL, CE, and 3C, as well as design patent technology. Its stated processes include advanced design software, testing equipment, and controls from raw-material procurement through finished products. However, the available information does not verify contract manufacturing, inventory, overseas services, ODM/OEM, SDK, environmental, or fire-drill capabilities. No customer cases or financial-strength evidence is provided. The audit record identifies TUV Rheinland and a valid report period, but the audit result is recorded as “0” without an explained interpretation.

Supplier typeThe supplier is explicitly identified as a manufacturer and a limited company located in Zhejiang, China. It has operated since 1993, supporting classification as an established manufacturing supplier.

CertificationsThe supplier reports ISO 9001:2015 certification and product certifications including US UL, EC CE, and 3C; it also states that it has held an industrial production permit and received export-advanced-enterprise recognition for three consecutive years. A TUV Rheinland audit report is listed with dates from November 4, 2025 to November 3, 2026, although the recorded audit result of “0” is not explained.

After-Sales capabilityThe supplier states that its marketing center provides comprehensive pre-sale, in-sale, and after-sale service to customers worldwide. However, overseas warehouse, showroom, and overseas agent or branch capabilities are all marked unknown, so the depth and delivery model of after-sales support cannot be fully verified.

R&D capabilityThe supplier reports using PROE/CAD and other design software, integrating decades of low-voltage electrical manufacturing experience, and holding product design patent technology. ODM, SDK, private-mold, 3D-design, and new-product R&D capabilities are marked unknown, limiting confirmation of broader innovation services.

Production capacityThe supplier reports more than 10 production lines, 50 quality-control staff, and stated annual capacities of 1,000,000 voltage-stabilizer boxes, 5,000,000 miniature circuit-breaker boxes, and 2,000,000 AC-contactor bags. It also describes testing equipment and process controls from raw-material procurement through finished production, providing explicit evidence of substantial production and quality-control infrastructure.

Product Q&A

Q:What is the main advantage of choosing a mechanical carbon brush voltage stabilizer over electronic types?

Mechanical stabilizers excel in handling high inductive loads (like motors) and have better overload tolerance. The carbon brush system provides smooth voltage adjustment without waveform distortion, making them ideal for traditional machinery.

Q:How often do the carbon brushes need replacement, and is it complicated?

Under normal operation, carbon brushes typically last 2-3 years. Replacement is straightforward - our units feature accessible brush compartments allowing maintenance within 30 minutes without special tools.

Q:Can this stabilizer protect sensitive equipment like CNC machines?

While effective for voltage correction, the 2-3 second response time may not suit precision CNC equipment. We recommend our electronic models with <0.1s response for sensitive electronics.

Q:Is professional installation required?

Yes. While the unit has clear terminal markings, we recommend installation by certified electricians due to the high-power three-phase connection requirements.

Q:How does the stabilizer perform during power outages or surges?

The mechanical system automatically resets when power restores. For surge protection, we recommend adding separate surge arresters as our unit focuses on voltage stabilization.