Industrial Socket Pakistan: IP44 IP67 3-4-5 Pin
Industrial Socket Pakistan — IP44, IP67, 16A 32A 63A 125A, 3-Pin 4-Pin 5-Pin Guide
Updated: May 2026 · CNC Electric Pakistan
Industrial Socket — Pakistan Quick Answer (2026)
Industrial sockets follow IEC 60309 — colour-coded by voltage, ringed by amperage, sealed by IP rating. Standard Pakistani factory needs: blue 3-pin 230 V 16 A IP44 for single-phase tools (Rs.350–650); red 5-pin 400 V 16 A IP44 for 3-phase tools (Rs.850–1,400); red 5-pin 400 V 32 A IP67 for heavy machinery (Rs.1,800–2,600); red 5-pin 63 A / 125 A IP67 for crane / lift connections (Rs.4,200–9,500). Always paired with a matching plug (similar prices).
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The IEC 60309 Colour Code — Voltage at a Glance
Industrial sockets are colour-coded by voltage and frequency. Glance at the colour and you know immediately what supply is behind it:
| Colour | Voltage | Pakistani use |
|---|---|---|
| Blue | 200–250 V AC 50–60 Hz | Single-phase 220 V — most common, used for portable tools, lighting |
| Red | 380–415 V AC 50–60 Hz | Three-phase 380 V — machinery, welding sets, motors |
| Black | 500–690 V AC | Industrial 500 V — very rare in Pakistan |
| Green | 50 Hz reference / pilot | Synchronisation signals — not power |
| Orange | DC supplies | Specialty DC equipment |
| Violet | 20–25 V Extra Low Voltage | Mining and confined spaces — very rare in Pakistan |
| Yellow | 100–130 V AC | North American voltage — not used in Pakistan |
Pin Configuration — How Many Pins and Why
3-Pin (Blue, Single-Phase 220 V)
Live + Neutral + Earth. Standard configuration for portable single-phase tools — drills, grinders, mixers, lighting on construction sites. Equivalent to a domestic socket but ruggedised for industrial environments.
4-Pin (Red, 3-Phase 380 V, no neutral)
R + Y + B + Earth. Used for pure 3-phase motors that don't need a neutral — most squirrel-cage induction motors, including pumps and large fans. The motor's three windings connect to R/Y/B, with the motor body grounded via the earth pin.
5-Pin (Red, 3-Phase 380 V + Neutral)
R + Y + B + N + Earth. The standard Pakistani industrial connector — provides three-phase 380 V to the motor or machinery AND a neutral for any single-phase 220 V controls (PLC supply, contactor coils, indicator lamps). This is what 90% of Pakistani factories actually use.
2-Pin (Blue, no earth)
Rare — only used in fully double-insulated equipment that doesn't need an earth path. Avoid this configuration in Pakistan; the earth pin is critical safety.
IP Rating — Sealing Against Water and Dust
The IP (Ingress Protection) rating defines how sealed the socket is. Higher numbers = better sealed:
| IP Rating | Protection | Where to use in Pakistan |
|---|---|---|
| IP44 | Splash from any direction | Indoor factory floor, workshop, sheltered outdoor |
| IP54 | Dust + splash | Dusty environments (textile, cement, flour mills) |
| IP67 | Full dust + immersion 1 m for 30 min | Outdoor exposed to monsoon rain, wash-down areas, food / dairy |
| IP68 / IP69K | Long-term submersion / high-pressure jets | Submersible equipment, marine, specialty |
CNC Industrial Socket Range — Pakistan Pricing
Blue Single-Phase 220 V Range
- 3-pin 16 A 230 V IP44 panel-mount socket — Rs.350; matching plug Rs.280
- 3-pin 16 A 230 V IP67 panel-mount socket — Rs.580; matching plug Rs.420
- 3-pin 32 A 230 V IP67 panel-mount socket — Rs.850; matching plug Rs.680
Red Three-Phase 380 V Range
- 5-pin 16 A 400 V IP44 panel-mount socket — Rs.850; plug Rs.620
- 5-pin 16 A 400 V IP67 panel-mount socket — Rs.1,400; plug Rs.950
- 5-pin 32 A 400 V IP67 panel-mount socket — Rs.2,600; plug Rs.1,800
- 5-pin 63 A 400 V IP67 panel-mount socket — Rs.4,200; plug Rs.3,400
- 5-pin 125 A 400 V IP67 panel-mount socket — Rs.9,500; plug Rs.7,800
Wall-Mount Combined Socket Boxes (Socket + Switch)
For the cleanest install, pair the socket with a downstream isolator switch in a single enclosure. CNC offers combined boxes with socket + switch + interlock — turn the isolator OFF before you can withdraw the plug:
- 16 A combined socket + isolator — Rs.2,200
- 32 A combined socket + isolator + 30 mA RCBO — Rs.5,800
Where to Use Each Type — Pakistani Application Guide
| Application | Right socket |
|---|---|
| Construction site portable drill / grinder | Blue 3-pin 16 A 230 V IP44 |
| Outdoor compressor (monsoon exposed) | Blue 3-pin 16 A 230 V IP67 |
| 5 HP factory pump (3-phase) | Red 5-pin 16 A 400 V IP44 |
| 15 HP textile motor (3-phase) | Red 5-pin 32 A 400 V IP54 |
| 30+ HP heavy industrial machine | Red 5-pin 63 A 400 V IP67 |
| Welding inverter 250 A | Red 5-pin 32 A or 63 A 400 V IP44 |
| Lift / crane connection | Red 5-pin 63 A or 125 A 400 V IP67 |
| Food / dairy plant wash-down area | Any colour 5-pin IP69K (specialty) |
Common Installation Mistakes
- Using IP44 in outdoor monsoon-exposed locations. Water gets in, contacts corrode, eventually shorts. Always use IP67 outdoors in Pakistan.
- Mixing IEC 60309 with domestic 13 A British plugs. Don't do this — adapters defeat the safety design. Use the right industrial connector at the source.
- Wiring earth to the wrong pin. The earth pin is the longest one (so it engages first, disengages last). The other pins are line / neutral / phases. Reversed earth = appliance body becomes live.
- Not using socket-side RCD protection. Every industrial socket feeding portable equipment must have a 30 mA RCCB / RCBO upstream. Portable tools in wet hands without RCD = electrocution.
- Undersizing the upstream MCB. A 32 A socket fed from a 16 A MCB will trip on legitimate load. A 16 A socket fed from a 63 A MCB will weld during fault. Match the breaker to the socket rating.
- Skipping the interlock on lift / crane sockets. Cable must not be withdrawn while energised — interlock the socket with the isolator so power is OFF before plug release.
Frequently Asked Questions
What is the price of an industrial socket in Pakistan?
CNC industrial sockets Pakistan 2026: blue 3-pin 16 A IP44 from Rs.350, red 5-pin 16 A IP44 from Rs.850, red 5-pin 32 A IP67 Rs.2,600, red 5-pin 63 A IP67 Rs.4,200, red 5-pin 125 A IP67 Rs.9,500. Matching plugs are typically 30% less.
What does IP44 vs IP67 mean?
IP44 = protected against dust above 1 mm + splashing water from any direction. IP67 = full dust protection + can be immersed in 1 m water for 30 min. For sheltered indoor / outdoor use IP44 is fine; for monsoon exposure or wash-down areas use IP67.
What does the blue / red colour mean?
IEC 60309 colour code: blue = single-phase 200-250 V (standard Pakistani 220 V), red = 3-phase 380-415 V (Pakistani 380 V). The colour tells you the supply voltage at a glance — preventing accidental wrong-voltage connection.
5-pin vs 4-pin red socket — which do I need?
5-pin (R+Y+B+N+E) is the Pakistani standard — provides 3-phase 380 V plus neutral for any single-phase 220 V controls inside the equipment. 4-pin (R+Y+B+E) skips neutral — only suitable for pure 3-phase motors with no internal controls. When in doubt, use 5-pin.
What size socket for a 15 HP motor?
15 HP 3-phase motor draws 23 A FLA. Use a red 5-pin 32 A 400 V socket (next standard size up). Match upstream MCB to 32 A. For IP rating, IP44 for sheltered, IP67 for exposed.
Do industrial sockets need their own MCB and RCCB?
Yes. Each socket should have its own upstream MCB sized to the socket rating, plus a 30 mA RCCB or RCBO if the socket feeds portable equipment used in wet conditions. The MCB protects against fault current; the RCCB protects the user from shock.
Can I use an industrial plug with a domestic socket?
No — and you shouldn't try with an adapter. The mating profiles are deliberately different to prevent connecting a 16 A appliance to a 13 A circuit (which would overload) or vice versa. Use the correct industrial socket at the source.
Industrial sockets sized to your factory
Send your machine list (HP / kW + indoor / outdoor) — we’ll spec sockets + plugs + interlocks + matched RCDs as a complete kit.