Shanghai Toppower-Asia Co., Ltd. | Reliable Power Transformers & Generators Manufacturer
HQ: Yangpu, Shanghai, China | Factory: Wuxi, Jiangsu, China

Premium Voltage Regulators

Engineered for Industrial Stability & Efficiency. Explore our comprehensive range of CE Certified, Dry-Type & Oil-Immersed isolation and auto transformers designed for global power configurations.

Industrial High Precision Voltage Regulator

Reliable Power Conversion by Shanghai Toppower-Asia Co., Ltd.

As a leading B2B manufacturing enterprise and global exporter, Shanghai Toppower-Asia Co., Ltd. specializes in state-of-the-art power distribution solutions. Our Voltage Regulators series is meticulously crafted to provide seamless step-up, step-down, and robust electrical stabilization capabilities. Spanning capacities from 5kVA up to heavy-duty 3500kVA models, these units are critical for stabilizing industrial machinery, commercial facilities, and sensitive electronic equipment.

Whether your operation requires standard 380V to 220V three-phase stabilization, dual voltage configurations, or custom-engineered enclosures for challenging environments, our factory delivers. Leveraging advanced copper and aluminum winding techniques, we ensure high efficiency, excellent heat dissipation, and prolonged operational lifespans. We actively support OEM/ODM requests, offering highly competitive wholesale pricing without compromising on international safety and quality standards.

Precision Voltage Control

Highly accurate step-up and step-down configurations (e.g., 480V to 220V, 380V to 220V) ensuring stable power distribution for sensitive industrial loads.

Enhanced Safety & Isolation

Advanced dry-type and oil-immersed electrical stabilization designs that protect equipment from power surges, grounding issues, and line noise.

Durable Factory Direct

Manufactured by Shanghai Toppower-Asia with CE certification. We offer durable, high-efficiency coils with comprehensive OEM/ODM wholesale capabilities.

Single Phase & SVR Voltage Regulators

Discover our comprehensive range of highly efficient, durable, and certified voltage regulators and stabilizers designed for industrial and commercial applications.

Need Comprehensive Specifications?

Download our complete product catalogue featuring detailed technical parameters, dimensions, and certification documents for our full range of Voltage Regulators.

Download PDF Catalogue

Comprehensive Guide to Industrial Low Voltage Transformers

At Shanghai Toppower-Asia Co., Ltd., we specialize in engineering and manufacturing top-tier Low Voltage Transformers designed for exceptional reliability and efficiency. Whether you require a step-down transformer for localized factory machinery or a high-capacity isolation transformer for commercial power distribution, our product range offers unrivaled performance.

Manufactured in our state-of-the-art facility located in Wuxi, Jiangsu, China, every unit undergoes rigorous testing to ensure maximum safety and energy efficiency. From standard configurations to OEM/ODM customized builds, we empower industries globally.

40KVA Three Phase 380V to 220V Step Down Transformer

Key Features & Engineering Excellence

Our low voltage transformers are meticulously built to meet demanding global standards. With strict quality control protocols, we guarantee consistent power stability across varying operational loads.

  • Premium Winding Materials

    Choose between high-grade pure copper or cost-effective aluminum windings. Both options offer outstanding conductivity and thermal endurance.

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    Advanced Dry-Type Isolation

    Delivering superior electrical isolation which drastically reduces electromagnetic interference and ensures safe operations in sensitive environments.

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    Flexible Voltage Conversion

    Broad support for custom inputs and outputs, spanning 600V, 480V, 440V, 400V, 380V, 220V, and 208V across 50/60Hz frequencies.

  • CE Certified Quality

    All our transformers comply with strict international safety and performance standards (CE Certification), guaranteeing peace of mind.

CE Certification Low Voltage Transformer
5KVA-20KVA Transformer with Protective Enclosure

Types & Industrial Applications

We supply a diverse array of transformers tailored for specific industrial sectors, ranging from textile mills to precision CNC workshops.

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3-Phase to Single-Phase Transformers

Essential for balancing loads when operating heavy-duty single-phase equipment on a three-phase industrial power supply grid. Available capacities range from 5KVA up to 500KVA.

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Step-Up & Step-Down Transformers

Perfect for bridging voltage disparities between local grids and imported machinery. Securely adjust voltages (e.g., 480V to 220V or 220V to 380V) to prevent equipment damage.

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Dry-Type Isolation Transformers

Ideal for sensitive electronics, CNC machinery, and medical equipment. Isolating the load from the power source is critical to filtering out grid noise and hazardous electrical surges.

50KVA Step Down Step Up 3 Phase Transformer

Frequently Asked Questions (FAQ)

Find quick answers to the most common queries about our Low Voltage Transformers.

Dry-type isolation transformers utilize air for natural or forced cooling rather than relying on oil. This makes them significantly more environmentally friendly, fire-resistant, and virtually maintenance-free. Furthermore, their isolation capability protects sensitive loads from electrical noise, harmonics, and voltage spikes originating from the main grid.

Yes, absolutely. Shanghai Toppower-Asia Co., Ltd. provides robust OEM and ODM services. We can custom-engineer input/output voltage ratios, KVA capacity ratings, IP-rated enclosures (indoor/outdoor), and specific winding materials based on your project's precise requirements.

Standard models and capacities are typically manufactured and dispatched rapidly from our Wuxi factory. For bulk or highly customized orders, the lead time usually ranges from 15 to 30 days. Please reach out to our sales team at kevin@toppower-asia.com for a precise manufacturing timeline.

Yes, we provide complete technical manuals and product catalogs in PDF format. You can easily download them via the resource button below or request them through our online customer service channels (WhatsApp or Email).

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