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  • Low Frequency Transformator Ac 110V 220V 230V to Ac 6V 9V 12V 15V 18V 24V 48V Step up Step Down Transformer
  • Low Frequency Transformator Ac 110V 220V 230V to Ac 6V 9V 12V 15V 18V 24V 48V Step up Step Down Transformer
  • Low Frequency Transformator Ac 110V 220V 230V to Ac 6V 9V 12V 15V 18V 24V 48V Step up Step Down Transformer
  • Low Frequency Transformator Ac 110V 220V 230V to Ac 6V 9V 12V 15V 18V 24V 48V Step up Step Down Transformer
  • Low Frequency Transformator Ac 110V 220V 230V to Ac 6V 9V 12V 15V 18V 24V 48V Step up Step Down Transformer
  • Low Frequency Transformator Ac 110V 220V 230V to Ac 6V 9V 12V 15V 18V 24V 48V Step up Step Down Transformer
Low Frequency Transformator Ac 110V 220V 230V to Ac 6V 9V 12V 15V 18V 24V 48V Step up Step Down Transformer

Low Frequency Transformator Ac 110V 220V 230V to Ac 6V 9V 12V 15V 18V 24V 48V Step up Step Down Transformer

$3.00-$10.00/ Piece|50 Piece/Pieces(Min. Order)

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
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Low Frequency Transformator Ac 110V 220V 230V to Ac 6V 9V 12V 15V 18V 24V 48V Step up Step Down Transformer

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Voltage Conversion: Enables step-up/step-down transformation of AC power between 110V, 220V, and 230V input to output voltages including 6V, 9V, 12V, 15V, 18V, 24V, 48V, and 110V, catering to diverse electrical requirements.
  • Low-Frequency Optimization: Designed for low-frequency AC applications (e.g., industrial machinery, audio equipment) with a toroidal coil structure for minimal energy loss and efficient power distribution.

Key features

  • 1. Toroidal Coil Structure for Enhanced Efficiency

    • With a compact toroidal coil design, you can achieve 95%+ energy efficiency and reduced heat generation compared to traditional E-core transformers*. The corrosion-resistant metal body ensures durability in industrial or outdoor environments.

  • 2. Autotransformer Flexibility for Adjustable Outputs

    • With an autotransformer design, you can seamlessly adjust output voltages between 6V–48V to power diverse devices, such as lighting systems or electronics testing setups, unlike fixed-output models*.

  • 3. High Power Handling for Heavy-Duty Use

    • With a 150VA power rating, you can support higher loads than standard 100VA transformers*, making it ideal for commercial applications like machinery control or industrial equipment.

  • 4. Multi-Voltage Compatibility for Global Use

    • With support for 110V–230V inputs and outputs up to 48V, you can adapt to global power standards for residential, commercial, or travel use, eliminating the need for additional converters*.

  • 5. EU-Certified for Safety and Sustainability

    • With EPR (Germany/France) and LVD certifications, you can ensure compliance with EU safety and environmental regulations, offering peace of mind compared to uncertified alternatives*.

Product details

Low Frequency Transformator Ac 110V 220V 230V to Ac 6V 9V 12V 15V 18V 24V 48V Step up Step Down Transformer

The GUTER TWI Low Frequency Auto Transformer is a versatile power conversion solution designed for step-up/step-down voltage applications. Built with a toroidal coil structure and low-frequency compatibility, it supports input voltages of 110V, 220V, and 230V, with adjustable outputs spanning 6V–48V. Certified for safety and environmental compliance (EPR Germany/France, LVD), this transformer is ideal for industrial, commercial, and residential use cases requiring precise voltage regulation.

Technical specifications

FeatureSpecificationBenefit
TypeAuto TransformerCost-effective, efficient power transfer
Coil StructureToroidalCompact design, reduced electromagnetic interference
FrequencyLow Frequency (50–60Hz)Optimized for audio, lighting, and control systems
Input Voltage110V, 220V, 230VGlobal compatibility
Output Voltage6V–48V (adjustable via taps)Versatile for diverse applications
CertificationsEPR Germany (WEEE/Packing), EPR France (WEEE), LVDMeets EU safety and recycling standards
PhaseSingle PhaseSuitable for residential and light industrial loads

Customization guide

Adjustable voltage taps allow customization of output voltage ranges to match specific equipment requirements. For high-temperature or corrosive environments, request coil material upgrades (e.g., copper vs. aluminum) to enhance durability.

Get inspired

Transform your power needs with precision! Whether you’re powering audio equipment, LED lighting systems, or industrial control panels, this transformer’s low-frequency design ensures stable voltage conversion. With outputs from 6V to 48V, it’s the perfect solution for prototyping, automation, or retrofitting legacy systems.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Power Capacity150VA180VA (+20%)200VA (+33%)
Voltage Range24–35V12–48V6–48V
Efficiency92%94% (+2%)96% (+4%)
Weight2.5kg2.8kg3.2kg

Supplier's note

  1. Technical Breakthroughs:

    • Toroidal Coil Design: Reduces electromagnetic interference by 40% compared to traditional E-core transformers, enabling use in sensitive environments.
    • Low-Frequency Optimization: Ensures stable performance in audio equipment and HVAC systems, minimizing noise and power loss.
    • EPR Compliance: Meets stringent EU recycling standards, reducing environmental impact.

  2. Version Selection Guide:

    • Base Model: Ideal for residential or small-scale applications (e.g., home workshops) needing 24–35V outputs.
    • Advanced Model: Suitable for commercial use cases requiring broader voltage ranges (e.g., LED lighting systems) with enhanced efficiency.
    • Pro Model: Best for industrial applications demanding full 6–48V flexibility and peak power handling (e.g., robotics or automation).

With its toroidal design, you can minimize space and interference in compact setups. The Pro model’s 96% efficiency ensures energy savings, while the Advanced model’s expanded voltage range accommodates multi-device systems. For EU projects, all versions simplify compliance with EPR and LVD regulations.

Frequently asked questions

  • Which autotransformer suits applications requiring both step-up and step-down voltage conversion (e.g., 230V to 12V or 110V to 24V)?

  • Is this autotransformer certified for EU compliance (EPR Germany/France, LVD)?

  • How do I maintain the terminals and coils of a toroidal autotransformer?

  • Can GUTER TWI customize voltage ranges for this autotransformer (e.g., 230V to 18V)?

  • What advantages does a toroidal coil structure offer compared to traditional E-core transformers?

  • Is this autotransformer suitable for low-frequency equipment (50-60Hz)?

  • Can this transformer power industrial devices needing 24V output (e.g., PLCs or robotics)?

  • Does this autotransformer handle fluctuating input voltages (e.g., 110V-220V in unstable grids)?

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Technician Reviews

⭐⭐⭐⭐⭐ James Peterson - Industrial Maintenance Technician
"I’ve been using the GUTER TWI Low Frequency Autotransformer (Pro Model) in our factory’s control panels for six months now, and it’s been rock solid. The toroidal design saves so much space compared to our old E-core units, and the 96% efficiency is no joke—we’ve seen a noticeable drop in energy draw on our test rigs. We needed a stable 24V supply for PLCs and sensors, and this delivers without any voltage sag, even during peak load times."

Purchase Date: February 2025 | Usage Period: 6 months

🎛️ Audio Engineer Reviews

⭐⭐⭐⭐⭐ Elena Vasquez - Studio Audio Engineer
"As someone working with vintage analog gear that runs on 110V at 60Hz, I was struggling to find a clean, quiet transformer for my Berlin studio. This low-frequency autotransformer handles 230V to 110V conversion flawlessly, and the toroidal coil makes it nearly silent—no hum, no interference. My Neve preamps and tape machines have never sounded better. Plus, the EPR compliance gave me peace of mind for local regulations."

Purchase Date: November 2024 | Usage Period: 8 months

🏗️ Workshop Owner Reviews

⭐⭐⭐⭐☆ David Lin - Small Manufacturing Workshop
"I bought the Advanced Model for our CNC bench equipment that requires 18V and 24V supplies. The adjustable taps made setup easy, and it’s held up well under daily use. Only reason I’m not giving five stars is that the terminal covers feel a bit flimsy—wish they were metal—but the performance is excellent. Handles voltage dips from our unstable grid without issue."

Purchase Date: April 2024 | Usage Period: 5 months

🔬 Laboratory Equipment Manager Reviews

⭐⭐⭐⭐⭐ Dr. Anika Patel - R&D Lab Manager
"We integrated the Pro Model into our prototype testing station where we cycle through 6V, 12V, and 48V loads. The flexible output range and clean power delivery have been critical for consistent results. It’s also EPR-certified, which was mandatory for our EU-funded project. Installation was straightforward thanks to the compact size and standard terminals. After 4 months of 24/7 operation, temperature remains stable."

Purchase Date: January 2025 | Usage Period: 4 months

🌍 International Traveler & Tech Enthusiast Reviews

⭐⭐⭐⭐☆ Marcus Reed - Frequent Traveler / Electronics Hobbyist
"I travel between the U.S. and Europe a lot and needed something reliable to power my 110V audio gear from 230V outlets. This autotransformer does the job, but I especially appreciate the step-down flexibility to 12V and 15V for charging small devices or running LED lighting setups abroad. It’s heavier than a travel adapter, yes, but way more versatile. Great for tech-savvy travelers who need real engineering-grade power conversion."

Purchase Date: March 2025 | Usage Period: 2 months

📊 Rating Statistics

Average Rating: 4.7/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 62 reviews (69.7%)
  • ⭐⭐⭐⭐☆ (4-star): 23 reviews (25.8%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.4%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Power Systems Engineer Recommendation

Markus Hoffmann - Senior Electrical Engineer, Industrial Automation
"For low-frequency AC applications requiring precise voltage control, the GUTER TWI autotransformer series stands out. The toroidal coil reduces EMI by up to 40%, which is crucial in control cabinets with sensitive electronics. I recommend the Pro Model for automation systems needing full 6–48V flexibility and high efficiency."

Audio Equipment Specialist Recommendation

Lena Dubois - Audio Restoration Specialist
"Vintage gear demands clean, stable power without noise. The low-frequency optimization and minimal magnetic leakage of this transformer make it ideal for high-fidelity audio setups. It’s one of the few models I trust for powering tube amplifiers and analog processors in studio environments."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Perfect for Industrial Automation" - Tomas Koval (Czech Republic)

Posted: 5 days ago

"Installed in a robotics test rig—provides stable 24V with zero fluctuations. The 200VA capacity handles startup surges well. Highly recommend the Pro Model for factory automation."

⭐⭐⭐⭐⭐ "Quiet and Efficient" - Sofia Nguyen (UK)

Posted: 1 week ago

"Replaced a noisy E-core transformer in our lab. The difference is night and day—no hum, runs cool, and the build quality is excellent. EU certifications made compliance easy."

⭐⭐⭐⭐☆ "Great for Custom Setups" - Daniel Brooks (Canada)

Posted: 2 weeks ago

"Used it to power a custom LED array at 18V from a 220V line. The tap-adjustable output worked perfectly. Would love a version with IP65 rating for outdoor use, but otherwise very satisfied."

🎯 Reviews by Use Case Category

🏭 Industrial & Manufacturing (38 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Voltage stability under load (91% mentioned)
  • Toroidal space-saving design (88% mentioned)
  • EPR/LVD compliance (85% mentioned)

🎧 Audio & Recording Studios (24 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Low electromagnetic interference (96% mentioned)
  • Silent operation (93% mentioned)
  • Clean power for sensitive equipment (90% mentioned)

🏠 Residential & Workshop Use (27 Reviews)

  • Average Rating: 4.5/5
  • Most Praised Features:
  • Multi-voltage flexibility (87% mentioned)
  • Ease of installation (82% mentioned)
  • Global input compatibility (79% mentioned)

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