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3 Phase Industrial Plug

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3/4/5 Pin Industrial Plug

SFE Industrial Plugs are built for real industrial pressure—high temperatures, airborne dust, wet conditions, and constant plugging/unplugging. Using tough Nylon PA66, each plug is designed to keep its shape and grip over time, helping maintain reliable contact and steady power delivery in demanding environments.

Across manufacturing floors, maintenance bays, construction sites, docks, and public-utility projects, a secure connection is often the difference between smooth operations and unexpected downtime. That's why SFE focuses on practical on-site usability: clear color options for quick circuit recognition, rugged housings that support water- and dust-resistant performance, and a design that makes installation and routine replacement straightforward.

With a quality-first manufacturing system and certifications aligned with international expectations, SFE products have earned long-term trust in both domestic and overseas markets. When you need industrial power connectors that combine durability, safety, and consistent performance, choose the model that fits your current rating, voltage, and application scenario—and keep your equipment running with confidence.

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SF-013L / SF-023L IP44 Cable Entry Industrial Plug

Earth contact position 6h
Rated current(A) 16 32
Pole 3
Dimension(mm) a 141 178
b 59 75
c 51 64
Ø 8 10
Cable nominal cross-section area(mm²) 1-2.5 2.5-6
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Current(A):  16A. 32A
Voltage(V): 220-240V~2P+E
Protection degree:  IP44

_0005_014l

SF-014L / SF-024K Safety Series Industrial Plug

Earth contact position 6h
Rated current(A) 16 32
Pole 4
Dimension(mm) a 141 178
b 65 75
c 55 64
Ø 8 10
Cable nominal cross-section area(mm²) 1-2.5 2.5-6
Contact us
Current(A):  16A. 32A
Voltage(V): 380-415V~3P+E
Protection degree:  IP44

_0003_015l

SF-015L / SF-025L IP44 6h Position Industrial Plug

Earth contact position 6h
Rated current(A) 16 32
Pole 5
Dimension(mm) a 169 181
b 72 84
c 64 70
Ø 10 10
Cable nominal cross-section area(mm²) 1-2.5 2.5-6
Contact us
Current(A):  16A. 32A
Voltage(V): 220-380V~/240-415V~3P+N+E
Protection degree:  IP44

About
Wenzhou Shangfeng Electric Co.,Ltd.
Wenzhou Shangfeng Electric Co.,Ltd.
Wenzhou Shangfeng Electric Co.,Ltd. is located in Liushi, the "Chinese Electrical Capital", adjacent to the Yongtaiwen Expressway and National Highway 104, the largest port in Wenzhou - Qili Port in the south, and the Wenzhou Airport and Railway Station in the west. The sea, land, and air transportation is very convenient.
As China Industrial Plugs suppliers and Industrial Plugs factory, we are mainly engaged in wholesale Industrial Plugs, The company has introduced advanced technology and equipment, passed the ISO9001 international quality system, China Quality Certification Center CQC certification, and obtained the European Community CE safety certification, ROHS environmental protection directive certification, and continuously introduced senior technical personnel and enterprise management personnel, and has gradually acquired production technology. The company specializes in producing industrial plugs, sockets, couplers (connectors), nylon cable ties, and other products. The company strictly follows international standards such as IEC60309, EN60309, and CEE17 and national standards such as GB11918 and GB11919. The product design is unique and the structure is reasonable.
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Industry Knowledge: Choosing the Right Industrial Plug Configuration for Safer Power Distribution

Selecting Industrial Plugs isn't only about amperage and voltage; the connector layout affects safety, compatibility, and how smoothly a site runs. Below is a field-focused guide to the most common configurations and where they fit.

3‑phase power: where it shines

A 3 Phase Industrial Plug is widely used for motors, pumps, compressors, and heavy machinery because it supports efficient power delivery and steady operation under load. In many facilities, choosing a proper 3‑phase connector reduces nuisance trips and overheating caused by under‑spec'd connections.

4‑pin vs. 5‑pin: the key difference

  • A 4 Pin Industrial Plug is typically used when you need three phases plus protective earth (PE) but no neutral—often suitable for specific motor circuits and industrial equipment designed without a neutral requirement.
  • A 5 Pin Industrial Plug includes a neutral conductor (L1/L2/L3/N/PE), making it the go-to option for mixed loads or systems that combine three‑phase power with single‑phase auxiliaries, controls, or electronics.

Environmental durability matters as much as wiring

In wet, dusty, or high‑traffic environments, stable contact performance depends on more than the metal pins. Nylon PA66 housings support mechanical strength and long-term fit, while water- and dust-resistant construction helps reduce contamination, corrosion, and connection failures—especially in outdoor work or wash-down areas.

Why this matters for modern installations (including LED systems)

As installations become more complex—such as large LED displays and supporting power/control hardware—connector reliability and clear on-site identification become critical. A well-matched plug type helps prevent misconnection, speeds maintenance, and improves overall operational safety.