S Series AC-DC Enclosed Switching Power Supplies

S Series AC-DC
Enclosed Switching Power Supplies
The S Series is an enclosed AC-DC switching power supply range designed for industrial equipment, LED lighting, automation systems, control cabinets and general power applications.
With stable DC output, multiple power options from 350W to 600W, and standard 5V, 12V, 15V, 18V, 24V, 36V and 48V models, the S Series supports distributor stock, equipment manufacturing and project-based sourcing. Custom voltage, current, label, packaging and OEM/ODM requirements can also be reviewed.
{acf_product_category_field_product_category_4nd_section_subheading}
Categories
Energy Storage Power Supply
S Series Switching Power Supply Support for Industrial Projects
Quntro supports distributors, equipment manufacturers and project buyers with S Series AC-DC enclosed switching power supplies for industrial equipment, LED lighting, automation systems, control cabinets and project-based power supply applications.
The S Series covers 350W, 400W, 500W and 600W models, with standard output options including 5V, 12V, 15V, 18V, 24V, 36V and 48V. Our team helps review output voltage, current, power range, installation space, application needs and custom requirements, supporting projects from model selection to stable batch supply.
Factory Direct
Stable supply for S Series power supply orders.
Engineering Support
Review power range, output voltage, current and application needs.
OEM Support
Support custom voltage, label, packaging and project-based supply requirements.
Quality Testing
Output testing, protection checks and shipment inspection before delivery.

Years of Experience
Sales Regions & Countries
Global Clients
- 13+
Years of Experience
- 100+
Sales Regions & Countries
- 20000+
Global Clients
Need Help Choosing the Right S Series Power Supply?
What Makes Our S Series Power Supplies Different?
Choosing an S Series power supply is not only about wattage or price. Output voltage, current demand, installation space, wiring method, heat dissipation and long-term supply stability all affect real performance in industrial applications.
Quntro supports S Series AC-DC enclosed switching power supplies for industrial equipment, LED lighting, automation systems and control cabinet projects. With 350W, 400W, 500W and 600W models, standard 5V, 12V, 15V, 18V, 24V, 36V and 48V output options, and custom voltage, label, packaging and project-based supply support, our team helps customers match the right model for their application.
Factory Direct Support
Quntro supports distributors, equipment manufacturers and project buyers with S Series AC-DC enclosed switching power supplies for industrial equipment, LED lighting, automation systems and control cabinet applications.
For S Series projects, our team helps review output voltage, current, power range, installation space, terminal wiring, application needs and custom requirements. Standard 350W, 400W, 500W and 600W models are available, with 5V, 12V, 15V, 18V, 24V, 36V and 48V output options. Custom voltage, label, packaging and batch supply requirements can also be supported.

Quality Assurance
We know that power supply quality directly affects equipment stability, safety and long-term service life.
For S Series AC-DC enclosed switching power supplies, Quntro checks each key step carefully, from component inspection and assembly control to output testing, protection checks, burn-in testing and final inspection before shipment. Standard models and custom requirements are both reviewed before batch supply.

Transportation Simulation Test
Before shipment, our products and packaging go through transportation simulation and drop testing to help ensure they are well protected during transit. This process helps us reduce the risk of damage and deliver power products in better condition to our customers.

Team Support
Contact Our ExpertOur team helps customers move from power supply selection to order follow-up with clear and practical support. For S Series AC-DC enclosed switching power supply projects, we can review power range, output voltage, current, installation space, terminal wiring, application needs, custom requirements, labeling, packaging and batch supply details. Whether you are sourcing for industrial equipment, LED lighting, automation systems or control cabinet applications, Quntro provides support from model matching to stable delivery.

What does our clients say?
Don’t just take our word for it. Quntrotech serves customers in 60+ countries and regions with voltage stabilizers, switching power supplies, battery chargers, and DIN rail power supplies. See what 100+customers say about our product quality, service, and overall cooperation experience.
Submit an instant quote
Freely send us message for any questions, we will get back to you no later than 12 hours.

What does our clients say?
Don’t just take our word for it. Quntrotech serves customers in 60+ countries and regions with voltage stabilizers, switching power supplies, battery chargers, and DIN rail power supplies. See what 100+customers say about our product quality, service, and overall cooperation experience.
What does our clients say?
Don’t just take our word for it. Quntrotech serves customers in 60+ countries and regions with voltage stabilizers, switching power supplies, battery chargers, and DIN rail power supplies. See what 100+customers say about our product quality, service, and overall cooperation experience.

Discuss Industrial Power Supply Projects at Industry Exhibitions
Quntro meets customers at industry exhibitions to discuss practical industrial power supply solutions for equipment manufacturing, LED lighting, automation systems, control cabinets and project-based supply needs.
At our booth, customers can review real product samples and discuss key requirements such as input voltage, output voltage, current, power rating, installation space, terminal wiring, application environment and OEM/ODM needs.
Whether you are sourcing S Series AC-DC enclosed switching power supplies, DIN rail power supplies or other industrial power solutions, our team can assist from model selection and engineering review to quotation and batch supply.
Frequently Asked
Questions!
1. What is the S Series AC-DC switching power supply?
The S Series is an AC-DC enclosed switching power supply range designed to convert AC input into stable DC output. It is commonly used for industrial equipment, LED lighting, automation systems, control cabinets and general equipment power applications.
2. What power ratings are available for the S Series?
The S Series covers 350W, 400W, 500W and 600W models. These options are suitable for buyers who need a medium-power enclosed power supply for equipment manufacturing, replacement, distributor stock or project-based supply.
3. What output voltages are available?
Standard S Series output options include 5V, 12V, 15V, 18V, 24V, 36V and 48V DC. The right voltage depends on your equipment input requirement, load type, wiring design and application environment.
4. How do I choose the right S Series model?
To choose the right model, you should confirm the output voltage, output current, total power demand, input voltage, installation space, cooling condition, terminal wiring and continuous working time. For long-term use, it is better to keep enough power margin instead of running the power supply at full load for long periods.
5. Can the S Series support custom requirements?
Yes. Quntro can review custom requirements for S Series power supplies, including output voltage, current, label, packaging and project-based supply needs. For special requirements, our team will check whether a standard model or customized solution is more suitable based on the application and order quantity.
6. Is the S Series suitable for LED lighting applications?
Yes. S Series AC-DC switching power supplies can be used for LED lighting applications when the output voltage, current and power rating match the LED system. For LED projects, buyers should also consider working hours, heat dissipation, installation space and power margin.
7. Can S Series power supplies be used in control cabinets?
Yes. The enclosed metal housing and terminal wiring design make the S Series suitable for control cabinets, automation panels and equipment installation. Before ordering, it is recommended to confirm cabinet space, airflow, wiring layout and ambient temperature.
8. Can the S Series replace my existing power supply model?
Yes. If you have an existing power supply model, label photo, datasheet or sample, Quntro can help compare the key specifications and recommend a suitable S Series model or alternative solution. Important details include output voltage, output current, power rating, input voltage, size, terminal layout, cooling method and application environment.
9.Do you support OEM label and packaging?
Yes. Quntro supports OEM label, packaging and batch supply requirements for S Series power supplies. For distributors, equipment manufacturers and project buyers, we can review branding, carton label, packaging method and order quantity before production.
10.Are you a manufacturer or trading company?
QuntroTech is a factory-backed supplier of industrial power solutions. For this page, we support SE Series AC-DC enclosed switching power supplies, while our broader product range also covers other enclosed power supplies, DIN rail power supplies, voltage stabilizers and battery chargers.
Need S Series AC-DC Power Supplies for Your Project?
Quntro provides S Series AC-DC enclosed switching power supplies for industrial equipment, LED lighting, automation systems, control cabinets and project-based power supply applications. Tell us your required output voltage, current, power range, installation space, terminal wiring, application and order quantity. Our team will review your project details and recommend a suitable S Series standard model or customized power supply solution. From model selection and engineering review to OEM support, labeling, packaging and batch supply, we help distributors, equipment manufacturers and project buyers move from requirement confirmation to stable delivery.
Get an S Series Power Supply Quote
Send us your required output voltage, current, power range, application and order quantity. Our team will review your project and recommend a suitable S Series AC-DC enclosed switching power supply model. We support standard 350W, 400W, 500W and 600W models, with 5V, 12V, 15V, 18V, 24V, 36V and 48V output options, as well as custom voltage, label, packaging and project-based supply coordination.















We tested this power supply in an electronics setup that required a stable DC source. The unit is compact, easy to wire, and delivers dependable performance. It is suitable for projects that need a practical enclosed switching power supply.