Why You Choose Enclosed Power Supply
- High resistance to shock and vibration
- Greater stability during long-term operation
- Operating temperature range: -40°C to +85°C
- Available in four models: 50, 75, 100, and 200
Enclosed Power Supply Manufacturer & Supplier from China
LCTC is a Chinese company specializing in the production and sale of electrical components, including enclosed switching power supplies used for AC to DC control applications. Thanks to advantages such as high conversion efficiency and a wide range of output voltages, our products are used across various industries, providing professional switching power solutions.
As manufacturers of enclosed power supplies with over 10 years of experience in the electrical components industry, we fully understand your concerns. You may be concerned about issues such as unstable performance, inconsistent quality, long delivery times, or customization needs, problems that can all be addressed at LCTC.
If you are interested in our products, you can click the button to send us a request, add us on WhatsApp, or click the icon in the lower right corner for online consultation; a member of our team will contact you promptly.
LCTC Product
LCTC provides high-quality replacements and equivalents for standard industrial models.
Feature of Enclosed Power Supply
The LCTC enclosed switching power supply offers several advantages, making it ideal for a wide range of industries and equipment.

The LCTC enclosed power supply complies with Class A emission limits and various standards, minimizing electrical noise and the risk of electromagnetic interference with equipment.

The LCTC enclosed power supply with metal casing and the honeycomb-patterned openings provide excellent thermal conductivity and ventilation, promoting rapid heat dissipation and extending the device’s service life.

The metal casing and the honeycomb-patterned openings provide excellent thermal conductivity and ventilation, promoting rapid heat dissipation and extending the device’s service life.

The LCTC enclosed power supply features multiple protection mechanisms, including overvoltage, overcurrent, overload, short circuit, and overheating protection, to minimize losses caused by failures and enhance system safety.
Active PFC Enhances Stability
This technology improves efficiency and performance by actively regulating the input current to faithfully follow the input voltage waveform. Moreover, it achieves a high power factor, typically exceeding 0.95, thereby improving overall energy efficiency and reducing electrical noise, in compliance with international standards for power quality. Besides, this technology enables the enclosed power supply to operate stably across a wide range of input voltages. In summary, this technology enables the LCTC enclosed switching power supply to deliver energy in a more stable and efficient manner, making it the ideal choice for switching power supplies across various industrial sectors.


High Resistance to Voltage Fluctuations
The LCTC enclosed power supply features a design with a wide input voltage range, robust protection circuitry against overvoltage and transients, and a DC conversion topology. Ensures stable power delivery even under voltage instability conditions; effectively managing voltage fluctuations—such as sudden drops or surges—prevents brief power interruptions, system restarts, or shutdowns, thereby guaranteeing continuous and reliable operation in complex environments.
Enclosed Power Supply Resource Download
Application of Enclosed Power Supply
Enclosed power supply offers numerous advantages and is an electrical component suitable for use across a wide range of industries.

Enclosed power supplies, known for their high reliability and wide input voltage range, ensure stable power delivery, minimize equipment downtime, and enhance production efficiency. They are ideal for devices requiring continuous operation in industrial automation environments, such as PLC control systems, industrial robots, CNC machine tools, and automated production lines.

Enclosed switching power supplies, characterized by high conversion efficiency, low heat generation, and stable output voltage, are ideal for various LED lighting systems. They ensure consistent brightness and extend the lifespan of devices used in applications such as LED strips, LED displays, commercial lighting, landscape lighting, and illuminated signs.

Enclosed power supplies, equipped with short-circuit and overload protection, as well as a protective metal casing, are widely used in security systems to ensure continuous, 24/7 operation of equipment such as CCTV security systems, access control systems, intrusion alarm systems, and smart building systems.

Enclosed power supplies, characterized by low ripple, low noise, and high stability, are ideal for communication equipment requiring high-quality power. They help minimize electromagnetic interference and ensure signal stability in devices such as network switches, communication base stations, fiber optic equipment, routers, and data transmission systems.
Testimonials
The selection of the appropriate output voltage depends on the specific device used. The following information is provided for reference only:
12V enclosed power supplies are commonly used for LED lighting, small electronic devices, security and surveillance systems, etc.
The 24V enclosed power supply is the most widely used choice for industrial automation applications.
48 V enclosed power supplies are commonly used in high-power applications, such as telcommunications equipment and industrial network devices.
It is possible to sum the rated power of all devices powered by the included power supply to determine the total energy consumption, then apply a safety margin of 20%–30%. For example, if the total power is 80 W, you can choose a nominal power between 100 W and 120 W.
Enclosed Power Supply VS Open-Frame Power Supply
When selecting a switching power supply for industrial or electronic applications, enclosed power supply and open-frame power supply are the two most common options. Despite their similar electrical functions, they differ significantly in many aspects.
What is An Enclosed Power Supply?
It is an AC-DC switching power supply protected by a metal enclosure, which not only provides physical protection but also enhances heat dissipation. Enclosed power supplies are primarily used in automation control systems, PLC control panels, LED lighting systems, surveillance systems, and other applications. They offer superior safety and protection levels, enhanced reliability, and optimized resistance to dust, vibration, and interference.
What is An Open-Frame Power Supply?
It is a type of switch-mode power supply without a complete enclosure, typically designed for installation inside large equipment or systems, where the host device provides mechanical protection and thermal management. Open-frame power supplies are primarily used in consumer electronics, household appliances, small industrial equipment, communication modules, and similar applications. It is more convenient, and its compact design makes it better suited for internal integration.
Key Differences Between Enclosed and Open-Frame Power Supplies | ||
Dimension | Enclosed Power Supply | Open-Frame Power Supply |
| Structure | Metal-enclosed housing | No full protective casing |
| Protection Level | High protection against dust, contact, and interference | Limited protection depends on system integration |
| Safety | Higher safety for users and environment | Requires enclosure from host system |
| Heat Dissipation | Built-in thermal design via a metal case | Depends on device ventilation system |
| Installation | Independent installation | Must be installed inside equipment |
| Cost | Slightly higher due to housing and protection | Lower cost, more economical |
| Reliability | High stability in industrial environments | Depends on final product design |
| Application Environment | Industrial, outdoor, harsh environments | Controlled environments, OEM devices |
In summary, enclosed power supplies are better suited for equipment requiring high levels of safety, durability, and reliability, while open-frame power supplies are more appropriate for OEM projects and internal integration applications where cost containment is a key factor.








