Selection Manual
Product Selection Consultation

Provide tailored product suggestions based on your application, industry standards, and real-world needs.

Development and customization
Customization Support

Support customization requests by connecting with manufacturing resources for environmental or functional adaptation.

Technical Support
Technical Documentation Service

Offer comprehensive technical documents including specifications, manuals, and compliance certificates for smooth decision-making.

After sales
After-sales Assurance Service

Provide assurance for post-purchase issues, including exchange, repair coordination, and quality follow-up.

Commercial and Industrial Ventilation Equipment & Solution

About Us

Committed to providing customers with high-quality electrical products

A high-tech enterprise specializing in the research and development, production and sales of electrical equipment. We have passed the ISO9001:2000 quality management system standard certification to ensure that every production process meets international standards.

With advanced technology and high-quality services, our products have been successfully exported to many countries and regions such as Southeast Asia, Bangladesh, Russia, etc., and have won high praise from customers.

sntoom warehouse
Total employees
0 +
Global Partners
0 +
Efficient and reliable

Committed to a greener, safer world

Our mission is to provide the most environmentally friendly, energy efficient and sustainable electrical solutions that meet customer expectations at the lowest life cycle cost. To create a safer world, our security alarm systems and ventilation equipment are known for their uncompromising reliability and adhere to the highest standards across industries.

Since our founding, our continuous product and system development and automation have ensured innovative and highly flexible high-tech production, using state-of-the-art robotics to minimize waste and maximize recyclability, resulting in reliable and recyclable products. Products and systems that last with extreme durability and long life.

selective focus of smiling multicultural businessw 2023 11 27 05 23 57 utc

Need help?

Our experienced team is ready to assist you
analyzing results business people are meeting to 2023 11 27 05 29 47 utc

Need a quotation?

We will provide you with a detailed, tailor-made quote.
cropped image of male holding touch pad downloadin 2023 11 27 05 34 11 utc

Want to learn more?

Find out how our products and services can benefit you.
heres to the start of our exciting new venture tog 2023 11 27 05 09 05 utc

Want to become a partner?

Join our partner network and tap into our expertise and resources.
Customized solutions

Electrical Solutions

We have a deep understanding of our customers’ specific needs and challenges, and provide efficient and reliable products and services to help customers improve production efficiency and safety.

Industry insights and technology sharing

Exploring the frontiers of electrical technology

Help you gain a deeper understanding of the application and future development of electrical technology

On-Load Tap Changing Transformers: How to Read a Tap Position Table

An on-load tap changing transformer corrects voltage while the unit stays live, and the tap position table is where its regulation range is stated. This article walks through a nine-position ±4×2.5% table line by line, explains why currents appear only in the rated row, separates on-load from off-circuit tapping, and lists what to put on the enquiry so the quoted range matches the network.

Read More »

Intelligent Universal Circuit Breaker: How to Read Frame Size, Icu, Ics and Icw

An intelligent universal circuit breaker is usually ordered from a short specification: a current rating, a voltage, and a breaking capacity. Those three numbers are necessary and not sufficient. This article explains why the frame size is a mechanical platform rather than the current the breaker will run at, what Icu, Ics and Icw each measure and which one governs the design, how the trip unit grade changes what the breaker can protect, and which operating conditions — ambient temperature, altitude, protection degree, installation category and mounting tilt — belong on the enquiry rather than in the maintenance procedure.

Read More »

Parallel Operation of Transformers: The Conditions That Must Match

Adding a second transformer beside an existing one looks like the cheapest route to more capacity. It often is, but only when four conditions line up exactly: turns ratio and tap position, vector group, impedance voltage and phase sequence. Where they do not, the result is not reduced capacity but circulating current flowing between the units before any load is connected, heat that appears with no explanation, and protective devices that operate without a fault. This article sets out each condition, what happens when one of them is not satisfied, and a five-step check for a proposed pairing that can be carried out before energisation.

Read More »

Harmonic Currents and K-Factor: Sizing a Transformer for Non-Linear Loads

A transformer feeding a plant full of variable frequency drives can run dangerously hot while a clamp meter reads less than its rated current. Harmonic currents are the reason a transformer k-factor exists as a separate specification. This article explains why non-linear loads heat a transformer more than their current suggests – eddy current losses rise roughly with the square of frequency, so the extra heat appears in the windings while the fundamental current stays below the kVA rating – what a K-factor rating does and does not guarantee, why neutral conductors need separate attention under triplen harmonics, and how to size for harmonic currents using measured total harmonic distortion, a load profile, a matched K-factor and a derating factor for the real plant room.

Read More »

Provide you with high-quality and reasonably priced products

From pre-sales consultation, order processing, logistics distribution to after-sales service, we provide a one-stop solution

+86-15657768868 elena@sntoom.com
Get a Quote