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Home / Product / Industrial Sockets / Pannel Mounted Straight socket / Second Generation Upgraded Pannel Mounted Straight socket

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Built for compact enclosures and rugged jobsite power panels, our Second Generation Upgraded Pannel Mounted Straight socket series offers a practical balance of secure panel fit and fast wiring. The SFN-313-4 / SFN-3234-4 models support 110–130V 2P+E circuits with a 4h earth position, 16A/32A ratings, and an IP44 housing designed for everyday industrial splash and dust exposure. A flexible cable range helps installers work with common conductor sizes without forcing tight bends behind the panel. For customers planning higher-power distribution, we also support scaling the platform toward 125A Industrial Socket / 125 Amp Industrial Socket projects.

_0010_313-4

SFN-313-4 / SFN-3234-4 Cable Range Panel Mounted Straight Socket

Earth contact position 4h
Rated current(A) 16 32
Pole 3
Dimension(mm) axb 75 75
cxd 61 61
e 22 24
f 60 70
g 5 5
h 50 55
i 87 95
Cable nominal cross-section area(mm²) 1-2.5 2.5-6
Contact us
Current(A):  16A, 32A
Voltage(V):  110-130V~2P+E
Protection degree:  IP44

_0011_313

SFN-313 / SFN-323 220V IP44 Panel Mounted Straight Socket

Earth contact position 6h
Rated current(A) 16 32
Pole 3
Dimension(mm) axb 75 75
cxd 61 61
e 22 24
f 60 70
g 5 5
h 50 55
i 87 95
Cable nominal cross-section area(mm²) 1-2.5 2.5-6
Contact us
Current(A):  16A, 32A
Voltage(V):  220-240V~2P+E
Protection degree:  IP44

_0009_314

SFN-314 / SFN-324 380V High Rated Current Panel Mounted Straight Socket

Earth contact position 6h
Rated current(A) 16 32
Pole 4
Dimension(mm) axb 75 75
cxd 61 61
e 17 24
f 59 69
g 5 5
h 50 55
i 88 95
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

_0008_315

SFN-315 / SFN-325 IP44 3P+N+E Panel Mounted Straight Socket

Earth contact position 6h
Rated current(A) 16 32
Pole 5
Dimension(mm) axb 75 75
cxd 61 61
e 17 22
f 59 71
g 5 5
h 55 60
i 92 100
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

_0006_3132-4

SFN-3132-4 / SFN-3232-4 IP67 Electrical Panel Mounted Straight Socket

Earth contact position 4h
Rated current(A) 16 32
Pole 3
Dimension(mm) a 75 75
b 75 75
c 61 61
d 61 61
e 18 24
f 63 70
g 50 55
h 50 55
i 5 5
Cable nominal cross-section area(mm²) 1-2.5 2.5-6
Contact us
Current(A):  16A, 32A
Voltage(V):  110-130V~2P+E
Protection degree:  IP67

_0007_3132

SFN-3132 / SFN-3232 Rated Current Panel Mounted Straight Socket

Earth contact position 6h
Rated current(A) 16 32
Pole 3
Dimension(mm) a 75 75
b 75 75
c 61 61
d 61 61
e 18 24
f 63 70
g 50 55
h 50 55
i 5 5
Cable nominal cross-section area(mm²) 1-2.5 2.5-6
Contact us
Current(A):  16A, 32A
Voltage(V):  220-240V~2P+E
Protection degree:  IP67

_0005_3142

SFN-3142 / SFN-3242 6h Panel Mounted Straight Socket

Earth contact position 6h
Rated current(A) 16 32
Pole 3
Dimension(mm) a 75 75
b 75 75
c 61 61
d 61 61
e 18 24
f 63 70
g 50 55
h 50 55
i 5 5
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:  IP67

_0004_3152

SFN-3152 / SFN-3252 Multi Cable 3P+N+E Panel Mounted Socket

Earth contact position 6h
Rated current(A) 16 32
Pole 5
Dimension(mm) a 75 75
b 75 75
c 61 61
d 61 61
e 18 24
f 63 76
g 55 60
h 55 60
i 5 5
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:  IP67

_0002_3332-4

SFN-3332-4 / SFN-3432-4 Wide Cable Range Panel Mounted Straight Socket

Earth contact position 4h
Rated current(A) 63 125
Pole 3
Dimension(mm) a 100 120
b 100 120
c 80 101
d 80 101
e 35 44
f 96 106
g 80 100
h 80 100
i 7 7
Cable nominal cross-section area(mm²) 6-16 16-50
Contact us
Current(A):  63A,125A
Voltage(V):  220-250V~2P+E
Protection degree:  IP67

_0003_3332-1

SFN-3332 / SFN-3432 63A 125A Panel Mounted Straight Socket

Earth contact position 6h
Rated current(A) 63 125
Pole 3
Dimension(mm) a 100 120
b 100 120
c 80 101
d 80 101
e 35 44
f 96 106
g 80 100
h 80 100
i 7 7
Cable nominal cross-section area(mm²) 6-16 16-50
Contact us
Current(A):  63A, 125A
Voltage(V):  220-250V~2P+E
Protection degree:  IP67

_0001_3342

SFN-3342 / SFN-3442 IP67 Panel Mounted Straight Socket

Earth contact position 6h
Rated current(A) 63 125
Pole 4
Dimension(mm) a 100 120
b 100 120
c 80 101
d 80 101
e 35 44
f 96 106
g 80 100
h 80 100
i 7 7
Cable nominal cross-section area(mm²) 6-16 16-50
Contact us
Current(A):  63A, 125A
Voltage(V):  380-415V~3P+E
Protection degree:  IP67

_0000_3352

SFN-3352 / SFN-3452 IP67 Multiple Type Panel Mounted Straight Socket

Earth contact position 6h
Rated current(A) 63 125
Pole 5
Dimension(mm) a 100 120
b 100 120
c 80 101
d 80 101
e 35 44
f 96 106
g 80 100
h 80 100
i 7 7
Cable nominal cross-section area(mm²) 6-16 16-50
Contact us
Current(A):  63A, 125A
Voltage(V):  220-380V~/240-415V~3P+N+E
Protection degree:  IP67

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 Second Generation Upgraded Pannel Mounted Straight socket suppliers and Second Generation Upgraded Pannel Mounted Straight socket factory, we are mainly engaged in wholesale Second Generation Upgraded Pannel Mounted Straight socket, 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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News

Why 4h Keying and Cable Range Matter in Panel-Mounted Sockets (And How to Plan from 32A to 125A)

A panel socket is more than a power point—it's a repeat-touch component that gets plugged, unplugged, bumped, and serviced under time pressure. When specifying a Second Generation Upgraded Pannel Mounted Straight socket, two details often determine whether the installation stays trouble-free: keying (clock position) and cable compatibility. Using SFN-313-4 / SFN-3234-4 as a reference (110–130V, 2P+E, 4h, 16A/32A, IP44), here's how buyers and electricians typically evaluate the right fit.

4h earth position: a simple way to reduce wrong connections

Clock-position keying is designed to prevent mismating between different systems.

  • 4h is commonly used for specific low-voltage site power standards.
  • Keeping 4h consistent across similar circuits reduces "looks the same" mistakes during maintenance.

In real installations, this mechanical separation can be as valuable as labeling—especially on temporary power boards and busy panels.

Cable range: installation speed and long-term reliability

Cable range is not a minor convenience; it affects termination quality.

  • A socket that fits your typical conductor sizes helps achieve correct clamping and torque.
  • Better fit means less strand damage, fewer loose connections, and lower heat buildup at the terminals.
  • It also improves routing behind the panel by avoiding forced bends that stress insulation over time.

For panel builders, this translates into faster assembly and fewer field call-backs.

IP44 in practice: what it covers—and what it doesn't

An IP44 panel-mounted socket is usually chosen for:

  • Indoor industrial areas
  • Covered outdoor points
  • Panels that may see splashes but not washdown or immersion

If the panel face is frequently exposed to heavy water jets or persistent wet conditions, stepping up to higher IP protection is typically the safer lifecycle move.

Planning ahead: from 16A/32A today to 125A tomorrow

Many projects start with smaller auxiliary feeds and later expand to higher-current distribution. If your roadmap may require a 125A Industrial Socket (or 125 Amp Industrial Socket), planning early helps:

  • Reserve enclosure space for larger hardware and bend radius
  • Anticipate heavier conductor sizes and gland selection
  • Align upstream protection and thermal margins with continuous-load reality

Even if the initial build uses SFN-313-4 / SFN-3234-4 at 16A/32A, thinking ahead prevents costly panel redesigns later.

For panel applications, the most reliable choice is the one that matches system voltage, uses the correct 4h keying, supports the right cable range, and offers adequate IP protection for the environment. A Second Generation Upgraded Pannel Mounted Straight socket specified this way installs faster, mates correctly, and stays stable in service—while keeping a clear path for future upgrades up to a 125A Industrial Socket / 125 Amp Industrial Socket requirement.