Custom Control Power Transformer Manufacturer in China
A Control Power Transformer (CPT) is designed to supply power to control circuits in electrical panels like control cabinets, switchgear, and telecom enclosures. It ensures safe and stable voltage for relays, timers, and contactors. As a leading manufacturer, Linkwellelectrics offers reliable CPTs that meet various industrial needs. Our transformers are widely used in automation systems, telecom signal cabinets, and industrial machinery. We offer OEM/ODM services, bulk supply, and global delivery. If you’re looking for consistent quality and responsive support, contact us today — let’s power your control systems with confidence!
Linkwell Electrics - Your Trusted Control Power Transformer Manufacturer from China
1. Cost-Effective Ventilation for Electrical Enclosures
2. Long Service Life – Premium Copper Windings and Vacuum Varnish Sealing.
3. Effectively Regulates Internal Component Temperatures
4. Ul5085 & Ce Certified for Safety and Performance.
As a professional Control Power Transformer supplier, we provide much more than just products. We support our partners with fast technical guidance, tailored transformer recommendations, and timely logistics services.
Whether you need UL/CE-compliant models, datasheets, or test reports, we’ve got you covered. Our team works closely with wholesalers, electrical cabinet manufacturers, and telecom system integrators to ensure long-term cooperation.
You can always count on us for steady supply and efficient after-sales service. Reach out anytime — we’re here to support your business every step of the way.
Global Partnership
Various Control Power Transformer Series
We don’t just make Air Conditioner For Electrical Cabinet units—we help you every step along the way. We provide custom sizing, wiring support, and system integration tips for telecom or industrial setups. Our service includes training your technicians, offering spare parts, and supplying replacement filters. We also offer fast after-sales support if you ever face problems. Our units meet industry standards like UL, CE, and RoHS. We work with you to ensure your cabinets run cooler, last longer, and cost less to maintain. Want a full solution? Contact us now to learn how we can make cooling worry-free for your equipment.
Industrial Control Transformer
Industrial Control Transformers are designed for harsh environments in factories, refineries, and power plants. They deliver consistent low-voltage power to control circuits in high-demand systems. Ideal for automation cabinets, motor starters, and control panels, these transformers improve equipment lifespan and electrical safety. They support scalable systems and help wholesalers expand into industrial automation sectors.
Square-d Control Transformer
Square-D Control Transformers are known for their compact footprint and reliable performance in automation panels and telecom signal cabinets. Designed with efficient thermal protection, they ensure uninterrupted operation even under heavy load. These units help distributors offer name-brand alternatives with strong aftermarket demand and reduced return rates.
Single-phase Control Transformer
Single-phase Control Transformers are commonly used in electrical control cabinets for HVAC systems, machinery control, and lighting automation. They provide clean, stable power to relays and sensors. For wholesalers and integrators, this product offers a flexible solution for various panel configurations with minimal wiring complexity.
5KVA Control Transformer
5KVA Control Transformers serve heavy-duty applications such as base stations, machine tools, and smart grid cabinets. With robust output power and short-circuit protection, they ensure stable performance for mission-critical control systems. These transformers are perfect for distributors handling high-value orders with long-term projects.
3-way Control Transformer
3-way Control Transformers provide multiple voltage outputs from a single input, reducing the need for extra wiring. They are ideal for complex telecom cabinets or automation enclosures. Offering installation flexibility and wiring efficiency, this design is a favorite among system integrators and control panel engineers.
Dual voltage Control Transformer
Dual Voltage Control Transformers allow easy switching between different input or output voltages. This reduces SKUs for distributors and gives end-users flexibility in multi-country installations. Suitable for export control panels and mobile telecom stations, they save space while simplifying inventory.
250VA Control Transformer
250VA Control Transformers are compact solutions for light-duty electrical applications. Perfect for smaller control panels or distributed automation systems, these transformers provide efficient power distribution without overloading. Their popularity among OEMs ensures stable bulk demand and fast-moving inventory for resellers.
panel mount transformer
Panel Mount Transformers are built for easy and secure installation in control cabinets, HVAC panels, and telecom enclosures. They’re a great option for standardized manufacturing lines. These transformers save time for installers and reduce overall panel cost for equipment manufacturers.
din rail mount transformer
DIN Rail Mount Transformers are essential in compact control systems, thanks to their snap-on design and tool-free installation. Common in telecom signal cabinets and PLC enclosures, they are space-saving, efficient, and support modular expansion. Our Linkwell series includes quick-ship models for urgent B2B needs.
isolation transformer
Isolation Transformers electrically separate input and output, improving operator safety and circuit protection. Ideal for telecom cabinets, sensitive control systems, and medical panels, they reduce the risk of ground loops and surges. Installers prefer them for clean signal transmission and fault isolation.
Application of Air Conditioner For Electrical Cabinet in Different Industries
Telecommunication
Manufacturing Automation
Customize Your Control Power Transformer
Product Quality
We use Class H insulation and vacuum varnishing to ensure thermal stability.
Our transformers undergo 100% electrical testing before shipment.
All units meet IEC and UL standards for global usage.
Customization
We offer various mounting styles: DIN rail, baseplate, or enclosed.
Input/output voltage and power rating fully adjustable.
Optional terminal blocks, wiring harnesses, and surge protection.
Application Support
Designed for use in automation control cabinets and PLC systems.
Adapted for telecommunication signal cabinets and HVAC systems.
Built-in overload protection for sensitive industrial components.
Service and Supply
Quick response team for technical consultations.
Flexible lead times and inventory for bulk orders.
On-time delivery to over 30 countries with export packaging.
What is Air Conditioner for Electrical Cabinet Parts? How Does It Work?
A Control Power Transformer (CPT) is a step-down transformer that provides a stable, low-voltage power supply to control circuits, separate from the high-voltage power used by machines. These are commonly used in electrical control cabinets, automation systems, and telecom enclosures.
How it works: A CPT typically receives high input voltage (e.g., 480V or 240V) and converts it into a lower control voltage (e.g., 120V, 24V, or 12V). It uses magnetic induction: the primary coil receives the input voltage and induces a magnetic field. This field transfers energy to the secondary coil, which then delivers the output voltage. The design ensures isolation between control and power circuits, enhancing safety.
Most CPTs are designed to handle inrush currents—brief spikes when devices like contactors or relays activate. Their core construction minimizes energy loss and prevents overheating. In applications like telecom signal cabinets, control cabinets, and HVAC systems, CPTs ensure that relays, timers, and switches operate consistently, even if the main voltage fluctuates.
Transformers are rated in VA (volt-amperes), which indicates their total load capacity. It’s crucial to match the VA rating with your system needs. CPTs may include overload protection, thermal insulation, and specific mounting styles (panel, DIN rail, etc.). Their safe and stable power delivery improves system reliability and protects sensitive electronics.
| Function | Description |
|---|---|
| Voltage Conversion | Steps down high voltage to control-level voltage (e.g., 120V, 24V). |
| Electrical Isolation | Separates control and power circuits for safety. |
| Inrush Capability | Handles surge current for devices like relays and contactors. |
| Mounting Styles | Available in panel-mount, DIN rail, or enclosed designs. |
| Use Case | Powers control systems in cabinets, telecom gear, HVAC, and automation. |
What are the Benefits of Air Conditioner for Electrical Cabinet?
Customer Testimonials
FAQ of Control Power Transformer
What is a Control Power Transformer used for?
A Control Power Transformer (CPT) supplies stable voltage to the control circuits in panels. These circuits power relays, contactors, and timers, ensuring safe and reliable operation. CPTs are often used in control cabinets, motor starters, and telecom equipment where a lower voltage is required for control while the main power remains high. Our CPTs are ideal for use in industrial machinery, HVAC, and communication panels.
How do you size a Control Power Transformer?
Sizing a CPT depends on the total VA (volt-ampere) demand of the control devices. You must add the VA of each connected component — such as solenoids, timers, contactors — and then apply a safety margin (typically 25%). Our team can help calculate your exact needs and suggest a matching transformer model to ensure no overload.
What is the difference between a Control Transformer and a Power Transformer?
A Control Transformer is designed for low-power, stable output used in control circuits, while a Power Transformer handles high voltage and current for large-scale transmission. Control Transformers prioritize voltage stability and short-duration high inrush current capability. Power Transformers focus more on efficiency and bulk power transfer. Both are important, but they serve very different roles.
Do Control Power Transformers need to be grounded?
Yes, grounding is essential. Grounding ensures safety by providing a path for fault current, protecting both the transformer and connected devices. Improper grounding can lead to equipment damage or unsafe conditions. Our CPTs come with clear grounding instructions, and we can provide wiring diagrams or on-call guidance if needed.
Are your Control Power Transformers compliant with global standards?
Yes. Our CPTs are UL5085, CE, and RoHS compliant. These certifications confirm that our products meet safety, environmental, and performance benchmarks. Whether you’re distributing in North America, Europe, or Asia, our transformers are ready for international market access. We also support OEM labeling and documentation.
How long does delivery take for bulk Control Power Transformer orders?
For standard models, delivery usually takes 7–15 business days. Custom orders may take 20–25 days, depending on complexity. We keep a strategic stock of popular units for urgent dispatch. Contact our logistics team for real-time tracking, lead times, and tailored shipping options.
Can I use a Control Power Transformer outdoors?
Typically, CPTs are designed for indoor use in control cabinets. However, if outdoor installation is required, we can customize the enclosure to meet IP65 or NEMA 4 ratings. These weather-resistant designs protect against dust, moisture, and temperature swings. Be sure to specify your environment when ordering.
All-in-one Control Power Transformer Solutions for Your Project
Choosing us means you get more than a product — you gain a partner. We deliver Control Power Transformers with tight quality control, fast delivery, and flexible customization.
Our quality system is backed by ISO9001 and third-party audits. We offer low MOQ and fast logistics for project-based orders. From pricing strategies to market adaptation, we support your brand’s growth.
Whether you’re a wholesaler, panel builder, or system integrator, we’re committed to helping your business succeed with every transformer we deliver.
