S Series · AC-DC Enclosed Switching Power Supplies · Factory Supply

S Series AC-DC Enclosed Switching Power Supplies

  • Multiple Power Options · 350W, 400W, 500W and 600W Models Available
  • Wide DC Output Range · 5V, 12V, 15V, 18V, 24V, 36V and 48V Options
  • Wide DC Output Range · 5V, 12V, 15V, 18V, 24V, 36V and 48V Options
  • Enclosed Metal Housing · Suitable for Equipment and Cabinet Installation
  • Factory Supply · For Distributors, Equipment Manufacturers and Project Buyers
  • OEM Support · Label, Packaging and Batch Supply Requirements Available
Get Your Free Quote Today
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.

Wide Power Range
Stable DC Output
Industrial Applications
5V/12V/15V/18V/ 24V/ 36V/ 48V
Enclosed Metal Housing
OEM/ODM Support
Suitable for industrial equipment, LED lighting, automation systems, control cabinets and custom power supply projects.
Send Your Inquiry

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S-400W series switching power supply collection, available in 12V/33A, 15V/16A, 18V/22A, 24V/16.5A, 36V/11A, 48V/8.3A, China factory direct supply for industrial automation and factory projects | Qunrotech
S-400W Series
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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.

Switching power supply assembly line for industrial power supply production
13+

Years of Experience

100+

Sales Regions & Countries

20,000+

Global Clients

  • 13+

    Years of Experience

  • 100+

    Sales Regions & Countries

  • 20000+

    Global Clients

Need Help Choosing the Right S Series Power Supply?

Share your required power range, output voltage, current, application and order quantity. Quntro will help review your S Series AC-DC enclosed switching power supply needs and recommend a suitable standard or customized model for industrial equipment, LED lighting, automation systems or control cabinet applications.

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.

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.

All Reviews
  • 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.

      All Reviews
      • C*s**
        Spain

        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.

        Enclosed switching power supply used in electronics equipment application Customer Review
      • N*h**
        Vietnam

        This enclosed switching power supply works well in our control cabinet projects. The vertical installation is convenient, the size is practical, and the unit performs reliably for continuous equipment operation.

        Enclosed switching power supply installed in industrial control cabinet CUSTom而review
      • O*r**
        Egypt

        From a distributor’s perspective, this enclosed power supply is easy to introduce to industrial customers. The design is compact, the cooling layout is practical, and the overall build looks dependable for repeat orders.

        Top view of enclosed switching power supply with fan cooling for industrial power supply use CUSTom而Review
      • T*s**
        Poland

        Equipment Manufacturer

        Side view of enclosed switching power supply for industrial equipment cabinet applications Customer review

      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.

      • C*s**
        Spain

        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.

        Enclosed switching power supply used in electronics equipment application Customer Review
      • N*h**
        Vietnam

        This enclosed switching power supply works well in our control cabinet projects. The vertical installation is convenient, the size is practical, and the unit performs reliably for continuous equipment operation.

        Enclosed switching power supply installed in industrial control cabinet CUSTom而review
      • O*r**
        Egypt

        From a distributor’s perspective, this enclosed power supply is easy to introduce to industrial customers. The design is compact, the cooling layout is practical, and the overall build looks dependable for repeat orders.

        Top view of enclosed switching power supply with fan cooling for industrial power supply use CUSTom而Review
      • T*s**
        Poland

        Equipment Manufacturer

        Side view of enclosed switching power supply for industrial equipment cabinet applications Customer review
      Switching power supply exhibition customer meeting and project discussion

      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.

      Discuss Your Project

      Frequently Asked
      Questions!

      We have listed some questions you may ask. If you have more inquiries about our silicone products, you can send an inquiry to contact us.
      Discver More

      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.

      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.

      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.

      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.

      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.

      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.

      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.

      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.

      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.

      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.

      Industrial power solutions manufacturer in China.

      AVRINOR Power provides reliable switching power supplies and battery chargers for industrial equipment, automation systems, and customized OEM/ODM applications worldwide.

      Or WhatsApp+86 13178257383

      Get an instant quote

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      Ask For Quotation

      We will contact you within 24 hours, please pay attention to the email with the suffixWe will contact you within 24 hours, please pay attention to the email with the suffix  Alex@quntropower.com. After sending, you will be redirected to the page for downloading data too.

      Communicate with Specialist

      Reply in 12 hours or sooner…
      No AI robot ever