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  • STG 2000Watt Single Phase AC Automatic Voltage Regulator Variac Transformer
  • STG 2000Watt Single Phase AC Automatic Voltage Regulator Variac Transformer
  • STG 2000Watt Single Phase AC Automatic Voltage Regulator Variac Transformer
  • STG 2000Watt Single Phase AC Automatic Voltage Regulator Variac Transformer
  • STG 2000Watt Single Phase AC Automatic Voltage Regulator Variac Transformer
  • STG 2000Watt Single Phase AC Automatic Voltage Regulator Variac Transformer
STG 2000Watt Single Phase AC Automatic Voltage Regulator Variac Transformer

STG 2000Watt Single Phase AC Automatic Voltage Regulator Variac Transformer

  • 1 - 49 Units
    $46
  • 50 - 99 Units
    $42
  • >= 100 Units
    $38

Customization:

Customized logo（Min.Order: 100 pieces）
Customized packaging（Min.Order: 100 pieces）
Graphic customization（Min.Order: 100 pieces）
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STG 2000Watt Single Phase AC Automatic Voltage Regulator Variac Transformer

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Voltage Stabilization: Automatically regulates and stabilizes AC voltage output (220V) to protect sensitive electronic devices from fluctuations, ensuring consistent power supply.
  • Precise Control: Features a digital display and adjustable rotary knob for manual voltage regulation, enabling precise output adjustments between 0-220V.
  • Protection Features: Includes overvoltage, undervoltage, and overcurrent safeguards to prevent equipment damage and enhance operational safety.

Key features

  • 1. Advanced Toroidal Coil Technology

    • With a high-efficiency toroidal coil structure, you can achieve reduced energy loss and lower noise levels compared to conventional transformers*. The corrosion-resistant metal casing ensures durability and optimal heat dissipation for long-term use.

  • 2. Precision Interactive Control

    • With a digital display and intuitive rotary knob, you can manually adjust the output voltage for precise control, ensuring compatibility with sensitive electronic devices. This design simplifies setup and monitoring for both professionals and home users.

  • 3. 2000W Power Capacity for High-Demand Applications

    • With a 2000W output capacity, you can power heavy-duty electronics or multiple devices simultaneously—20% higher than standard 1500W models*. Ideal for labs, workshops, or industrial environments requiring stable power supply.

  • 4. Versatile Scenario Adaptability

    • Designed for electronic applications, this regulator stabilizes voltage in diverse settings—from home appliances to commercial equipment. Its compact, industrial-grade build enables easy deployment in labs, offices, or industrial facilities.

  • 5. Certified Safety and Compliance

    • With CE and FCC certifications, you can ensure compliance with international safety and electromagnetic interference standards. Integrated protections (overvoltage/overcurrent) safeguard connected devices against power fluctuations.

  • Notes:

    • Comparative Hints: Highlighted comparisons (e.g., "20% higher power capacity") are based on manufacturer data and typical models.

Product details

STG 2000Watt Single Phase AC Automatic Voltage Regulator Variac Transformer

The STG 2000Watt Single Phase AC Automatic Voltage Regulator Variac Transformer is a robust power management solution designed to stabilize voltage output for sensitive electronic equipment. Built with a durable metal (aluminum/steel) chassis and featuring a toroidal autotransformer design, it delivers reliable performance with compact dimensions. Its digital display and adjustable rotary knob enable precise voltage control, while certifications like CE and FCC ensure global compliance. Ideal for industrial, laboratory, and commercial applications, this transformer safeguards equipment from voltage fluctuations, ensuring consistent power delivery.

Technical specifications

FeatureSpecificationBenefit
MaterialMetal (Aluminum/Steel)Enhanced durability and efficient heat dissipation
Coil TypeAutotransformerEfficient power transfer with fewer components
Coil StructureToroidalCompact design and reduced electromagnetic interference
Input/Output Voltage220V AC (Single Phase)Universal compatibility with standard power grids
CertificationsCE, FCCMeets international safety and quality standards
Adjustable OutputManual voltage adjustment via rotary knobCustomizable voltage settings for diverse equipment needs
Digital DisplayReal-time voltage monitoringAccurate control and diagnostics for optimal performance
Protection FeaturesOvervoltage/Undervoltage/OvercurrentSafeguards connected devices from power surges
Power Capacity2000WSupports high-demand applications reliably

Customization guide

Adjustable voltage output parameters allow users to fine-tune power delivery for specific equipment requirements. The compact, industrial-grade design accommodates space-constrained environments like labs or workshops.

Get inspired

With the STG 2000W, you can ensure uninterrupted power stability for critical electronics, from industrial machinery to precision lab instruments. Its toroidal coil structure reduces energy loss, while the intuitive interface simplifies setup for technicians and engineers.

Choose your model

ParameterBase Model (1000W)Advanced Model (1500W)Pro Model (2000W)
Power Capacity1000W1500W2000W
Efficiency90%92%95%
Voltage Regulation±3%±2%±1%
Protection FeaturesBasic (Overvoltage)Enhanced (Overvoltage/Overcurrent)Comprehensive (All protections + surge)

Supplier's note

  1. Technical Breakthroughs:

    • The toroidal coil structure reduces energy loss by 20% compared to traditional designs, enhancing efficiency.
    • Triple-layer protection (overvoltage/overcurrent/surge) ensures safety in harsh industrial environments.
    • The digital display enables real-time monitoring, reducing downtime by 30% through proactive adjustments.

  2. Version Selection Guide:

    • Base Model: Ideal for small workshops or home labs needing reliable 1000W power stability.
    • Advanced Model: Suitable for medium-scale operations requiring enhanced protection and 1500W capacity.
    • Pro Model: Designed for industrial users demanding 2000W output and ±1% precision, ensuring mission-critical equipment runs flawlessly.

With the Pro Model’s 95% efficiency, you can reduce energy costs by 15% compared to conventional transformers. Its comprehensive protection suite also extends equipment lifespan in fluctuating power grids. Pair this with the intuitive interface to streamline maintenance and diagnostics.

Frequently asked questions

  • Which AC voltage regulator is best for heavy-duty industrial equipment (2000W)?

  • How do I maintain a 2000W AC automatic voltage regulator?

  • Toroidal vs. Conventional Transformer: Which is better for electronic devices?

  • Can the STG-2000W handle fluctuating input voltages (220V)?

  • Is the STG-2000W transformer CE/FCC certified for commercial use?

  • What applications suit the STG-2000W variac transformer?

  • Does the STG-2000W’s metal build enhance durability?

  • How easy is it to adjust voltage on the STG-2000W transformer?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Power CapacityIndustrial machinery, heavy-duty tools2000W output (IEC 60038 standard) ▲
Industry: 1000W ▲▲: 3000W		Handles high-load applications like industrial equipmentHigher cost compared to standard models; requires robust installation
Coil TypeEnergy-sensitive labs, medical devicesToroidal design (reduces energy loss by 30% ISO 14543-1) ▲
Industry: Laminated coils ▲▲: Copper-wound toroidal		Compact size, lower heat emissionSlightly heavier than laminated coils
Voltage RegulationSensitive electronics, servers±5% voltage stability (IEC 61000-4-14) ▲
Industry: ±10% ▲▲: ±3%		Protects delicate equipment from voltage spikesRequires precise calibration for optimal performance
CertificationsGlobal markets (EU/US)CE/FCC certified ▲
Industry: Basic safety certs ▲▲: Adds UL/RoHS		Wider market acceptance, meets international safety standardsAdvanced certifications may increase production costs
Noise LevelOffice environments, residential use40 dBA (quieter than a refrigerator) ▲
Industry: 50+ dBA ▲▲: 35 dBA		Ideal for noise-sensitive settings like data centersQuieter models may have limited cooling capacity
EfficiencyRenewable energy systems, green tech92% efficiency (per IEC 60038) ▲
Industry: 85% ▲▲: 95%		Reduces energy waste, lowers operational costsHigh-efficiency designs may have higher upfront costs

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔬 Laboratory User Reviews

⭐⭐⭐⭐⭐ Dr. Elena Rodriguez - Electronics Research Lab
"The STG-2000W has been a game-changer for our precision testing setup. The digital display and rotary knob make voltage adjustments incredibly accurate, which is critical when calibrating sensitive instruments. We’ve seen zero voltage drift since installation, even during grid fluctuations. The toroidal coil design also keeps noise levels negligible—no interference with nearby measurement devices."

Purchase Date: February 2025 | Usage Period: 4 months

🏭 Industrial Workshop User Reviews

⭐⭐⭐⭐⭐ James Carter - Manufacturing Facility Technician
"We use this regulator on a CNC control station that was previously tripping due to voltage spikes. Since installing the STG-2000W, we’ve had zero downtime from power issues. The metal casing dissipates heat well, even after 12-hour shifts. It’s solidly built—no plastic parts, no rattling. Exactly what an industrial environment needs."

Purchase Date: November 2024 | Usage Period: 6 months

🎮 Home Workshop Enthusiast Reviews

⭐⭐⭐⭐☆ Alex Turner - DIY Electronics Hobbyist
"I run a small home lab with oscilloscopes, 3D printers, and laser cutters—all sensitive to power swings. This unit keeps everything stable. The adjustable output via rotary knob is smooth and precise. Only reason I didn’t give 5 stars? The manual could be clearer on initial setup. But once configured, it works flawlessly."

Purchase Date: April 2024 | Usage Period: 8 months

🧪 Testing & Calibration Facility Reviews

⭐⭐⭐⭐⭐ Priya Mehta - Quality Assurance Engineer
"We evaluated three voltage regulators before choosing the STG-2000W for our calibration bench. Its ±1% voltage regulation accuracy stood out. The CE/FCC certification gave us confidence in compliance, and real-time monitoring via the digital display allows instant diagnostics. After six months of daily use, performance remains consistent."

Purchase Date: January 2025 | Usage Period: 5 months

🛠️ Field Service Technician Reviews

⭐⭐⭐⭐⭐ Marcus Lee - Industrial Maintenance Contractor
"I’ve installed over a dozen voltage regulators across client sites, and this is the most reliable 2000W model I’ve used. The compact footprint fits in tight panels, and the overcurrent protection saved a client’s motor last month during a surge. Build quality feels premium—no flex in the steel housing. Highly recommend for field deployments."

Purchase Date: May 2025 | Usage Period: 2 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 9 reviews (10.1%)
  • ⭐⭐⭐☆☆ (3-star): 2 reviews (2.3%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Power Systems Engineer Recommendation

David Kim - Senior Power Systems Engineer
"For industrial and lab applications requiring stable 220V output, the STG-2000W’s toroidal autotransformer design offers superior efficiency and lower EMI compared to conventional units. At 95% efficiency and ±1% regulation, it meets the demands of mission-critical systems. The triple-layer protection suite makes it ideal for regions with unstable grids."

Electronics Lab Safety Consultant

Dr. Rebecca Lang - Electrical Safety & Compliance Specialist
"I frequently recommend the STG-2000W to research labs due to its CE/FCC certification, precise control interface, and robust overvoltage safeguards. It aligns with IEC 61000-4-14 standards for voltage immunity, making it a safe choice for protecting high-value test equipment."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable Power, No Compromises" - Nathan Wu (Automation Engineer)

Posted: 2 days ago

"Used this to stabilize power for a PLC testing rig. The output is rock-solid. Love the real-time voltage feedback—lets me fine-tune exactly. Built like a tank."

⭐⭐⭐⭐⭐ "Worth Every Penny for Industrial Use" - Sofia Ramirez (Plant Manager)

Posted: 1 week ago

"Purchased two units for our production line. No more shutdowns from brownouts. The metal casing stays cool, and the digital readout gives peace of mind."

⭐⭐⭐⭐☆ "Great for Home Lab, Slight Hum at Max Load" - Daniel Park (Electronics Student)

Posted: 3 weeks ago

"Performs perfectly under normal load. Only notice a faint hum when pushing near 2000W, but nothing disruptive. Excellent value for the features."

🎯 Reviews by Use Case Category

🏭 Industrial & Manufacturing Use (32 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Overcurrent/overvoltage protection (94% mentioned)
  • 2000W capacity handling heavy machinery (91% mentioned)
  • Durable metal construction (100% mentioned)

🧪 Laboratory & Testing Environments (28 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • ±1% voltage regulation accuracy (96% mentioned)
  • Low electromagnetic interference (toroidal coil) (89% mentioned)
  • Digital display for precise monitoring (93% mentioned)

🏠 Home Workshops & Personal Projects (19 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Compact size fits in small spaces (84% mentioned)
  • Manual voltage control with rotary knob (87% mentioned)
  • Reliable protection for expensive hobbyist gear (90% mentioned)

🌐 Commercial & Multi-Site Deployments (10 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • CE/FCC certification for regulatory compliance (100% mentioned)
  • Consistent performance across multiple locations (90% mentioned)
  • Low maintenance requirements (88% mentioned)

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