Flexible cable with the black outer sheath stripped back, showing a black and a red insulated core and the fine copper strands inside each

PILONE · 4MM² · CLASS 5 FLEX

4mm Flexible Copper Cable

Class 5 flexible copper cable for air conditioners, geysers, and other higher-load appliance circuits. Fifty-six 0.30 mm strands per conductor, PVC insulated and sheathed, made on the Pilone line in Lahore.

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Prices track the daily copper rate. Coil and bulk pricing on request.

Specifications

Conductor resistance per IEC 60228 class 5. Current capacity and voltage drop per BS 7671, installation reference method C (clipped direct), 30°C ambient, PVC insulation. Derate for conduit, bundling, and higher ambient temperature. Verify sizing with a licensed electrician for your installation.
Property	Value
Conductor	Plain annealed copper, class 5 flexible stranded
Nominal area	4 mm²
Strand construction	56 / 0.30 mm
Max conductor resistance at 20°C	4.95 Ω/km
Current capacity, 2 loaded conductors	36 A
Current capacity, 3 loaded conductors	32 A
Voltage drop	11 mV/A/m
Voltage rating	450/750 V
Insulation / sheath	PVC / PVC, 70°C conductor rating
Conductor copper weight	≈ 35.6 kg/km per core
Typical use	1.5–2 ton air conditioners, geysers, 30 A+ appliance circuits

Current capacity depends on how the cable is installed. Derate for conduit, grouping, and high ambient temperature. Have a licensed electrician confirm the size for your load and run length — or start with the cable size calculator.

How far a 4 mm² run can go

Voltage drop sets the longest run before lights dim and motors struggle. BS 7671 allows 3% on lighting circuits and 5% on other circuits; on a 230 V single-phase supply that is 6.9 V and 11.5 V. At this cable's 11 mV/A/m, the longest one-way run is:

Longest one-way run for 4 mm² flexible cable, single-phase 230 V, at 11 mV/A/m. Loads shown up to the cable's 36 A capacity. Three-phase circuits allow longer runs.
Load	Lighting circuit (3%)	Other circuits (5%)
16 A	39 m	65 m
20 A	31 m	52 m
25 A	25 m	41 m
32 A	19 m	32 m

Check your own load and length with the voltage drop calculator. Every 100 m of each core holds 3.6 kg of copper; cable is priced from the day's copper rate, which is why each size up costs more.

Next size up or down

Flexible cable sizes either side of 4 mm², same reference conditions as the specification table.
Size	Current capacity, 2 loaded	Voltage drop	Copper per 100 m of core
2.5 mm²	27 A	18 mV/A/m	2.2 kg
4 mm² (this cable)	36 A	11 mV/A/m	3.6 kg
6 mm²	46 A	7.3 mV/A/m	5.3 kg

Available in 2, 3, and 4 core

2 CORE · 36 A

4mm 2 Core

Line and neutral only. Lighting drops and appliance runs that take their earth separately.

3 CORE · 36 A

4mm 3 Core

Line, neutral, and earth. The usual single-phase choice for socket circuits and appliances.

4 CORE · 32 A

4mm 4 Core

Three phases and neutral. Three loaded conductors bring the rating down to 32 A.

Other flexible sizes

Current capacity with two loaded conductors, BS 7671 reference method C, 30°C ambient. Same class 5 copper construction in every size.

Frequently asked

What is the price of 4mm flexible cable in Pakistan?

The price moves with the daily copper rate, so we quote it the day you order. We sell factory-direct from Lahore, with no dealer margin on top. Message us on WhatsApp for today's price per meter.

What is 4mm flexible cable used for?

1.5 to 2 ton air conditioners, geysers, and other 30 A+ appliance circuits. It carries 36 A with two loaded conductors on method C, and 32 A with three loaded conductors.

Can I get 4mm flexible cable delivered?

Yes. We dispatch from Lahore — courier for single coils, transport for bulk. Punjab arrives in 1–2 days, the rest of Pakistan in 2–4 days. See delivery details.

Send us the length and your city

We quote 4mm flexible at the day's copper rate and dispatch from the Lahore line. Tell us the core count and how many meters you need.