Industrial
Plug and Socket
Manufacturer in China.

Industrial Power Connection Products
Industrial plugs, high-current connectors and custom socket boxes for equipment and power distribution.
IEC 60309 Plugs & Sockets
Plugs, sockets and inlets for factories, construction sites and industrial equipment.
High-Current Plugs & Sockets
Heavy-duty connections for generators, mining equipment and industrial power distribution.
Single-Pole Power Connectors
Separate single-pole connections for generators, stage power and temporary distribution.
Custom Industrial Socket Boxes
Configure the outlets, circuit protection and enclosure around your project.
Your Reliable OEM
Manufacturing Partner
With over 20 years of OEM experience, we don't just assemble; we engineer. From material selection and component processing to assembly and inspection, we manage production to support consistent product quality and customers’ OEM requirements.
Full OEM/ODM Support
Custom branding, specific colors, and personalized packaging for your local market.
Quality Control & Testing
Testing requirements and protection ratings vary by model. Contact us for the relevant product specifications and test reports.
Direct Factory Pricing
No middlemen. Maximize your profit margins with our high-volume production capacity.
TÜV Rheinland
Certificates & Product Support
TÜV Rheinland LVD Certificates of Conformity are available for the listed 16A surface-mounted socket outlets and 400A Rhino connectors. Review the applicable certificate and technical information for your selected models.
16A Surface-Mounted
Industrial Socket Outlets
Certificate:
AN 50672535 0001
Test standards:
EN IEC 60309-1:2022
EN IEC 60309-2:2022
20 listed models, with IP44 or IP67 protection depending on the model.
View 16A certificate (PDF) ↗400A Rhino
Single-Pole Connectors
Certificate:
AN 50750013 0001
Technical report:
CN26GPM7 001
LVD Certificate of Conformity for the connector models listed in the certificate.
View Rhino certificate (PDF) ↗Specifications and supporting documents vary by model. Tell us the products and destination market so our team can provide the relevant information for your project.
Quality Control & Product Testing
Our quality control process includes incoming material checks and finished-product inspection. Electrical, mechanical and environmental tests evaluate selected models under specified conditions. Ask our team for the test documentation relevant to your products.

Temperature-Rise Testing
Evaluates heating under specified current, wiring and test conditions. Please request the results applicable to your selected model and configuration.

Glow-Wire Testing
Evaluates the behaviour of insulating materials when exposed to a heated glow wire under specified test conditions. Test temperature and results depend on the material and model.

Dielectric Strength Testing
Evaluates electrical insulation by applying a specified test voltage under controlled conditions. Test requirements and results are documented for the applicable model.

Ingress Protection Testing
Evaluates protection against dust and water under the conditions defined for the stated IP rating. Available ratings, installation requirements and mating conditions vary by model.

Mechanical Impact Testing
Evaluates housing resistance to mechanical impact under specified test conditions. Please refer to the test documentation for the selected product.

Temperature & Humidity Testing
Evaluates selected products under controlled temperature and humidity conditions. Confirm the rated operating temperature and application limits for your model before use.
Frequently Asked Questions
As a direct China manufacturer, SFE specializes in IEC 60309 industrial plugs, sockets, connectors, and plug-socket combinations. Our range covers 16A, 32A, 63A, and 125A standard models, as well as 200A, 250A, and 400A high current industrial plug and socket solutions.
Yes. We supply 3 phase industrial plugs and sockets in 16A, 32A, 63A, and 125A ratings, with IP44 and IP67 protection options for factories, machinery, construction sites, and outdoor power connection systems.
Yes. We offer IP44 and IP67 waterproof industrial plugs and sockets for outdoor, construction, factory, machinery, and industrial environments. The IP67 range is suitable for demanding applications where better dust and water protection is required.
Our standard industrial plug and socket range includes 16A, 32A, 63A, and 125A. For heavy-duty power connection applications, we also supply 200A, 250A, and 400A high current industrial connectors.
Yes. SFE Electric is the name used by Wenzhou Shangfeng Electric Co., Ltd., a manufacturer based in Wenzhou, China. Our company was established in 2004, with a production capacity of up to 25,000 products per day. We support OEM customization for customers’ product and destination-market requirements.
Available documents depend on the product series and model. TÜV Rheinland LVD Certificates of Conformity are available for selected products, including the listed 16A surface-mounted industrial socket outlets and 400A Rhino connectors. Share your required models and destination market so we can provide the relevant certificates, test reports and technical information. View our certificate examples.
Yes. We can provide samples of standard products such as 16A and 32A CEE plugs and sockets for quality testing. Please contact our sales team with your company details and required models to arrange sample shipment.
For standard IP44 and IP67 products in stock, delivery generally takes 5-10 days. For custom OEM orders, specific branding, colors, or large-volume production, our standard lead time is usually 15-25 days depending on the quantity and requirements.
SFE ELECTRIC
Industrial Plugs, Sockets & Power Connectors
WENZHOU SHANGFENG ELECTRIC CO., LTD.
Yueqing, Zhejiang, China