Electrical Wire Manufacturer,Supplier and Exporter in India
Product Code : EL-BE-12890
Jlab Export is a leading Electrical Wire Manufacturer,and suppliers in India
Electrical Wire (code EL-BE-12890), model LH289/4-36, is black insulated wire with a 4 mm² conductor — the heaviest black wire in JLab’s electrical wire range. Production is at the Ambala, Haryana, works of Jain Laboratory Instruments Pvt Ltd, which trades as JLab.
Specifications
| Parameter | Detail |
|---|---|
| Model number | LH289/4-36 |
| Capacity (conductor cross-section) | 4 mm² |
| Type | Insulated |
| Colour | Black |
| Quality check | Each roll is visually inspected before dispatch |
| Pack quantity | One roll of 100 yards (about 91.4 m) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-BE-12890 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is Black 4 mm² Wire Used For?
It suits the main current-carrying runs of a circuit, where thinner wire would heat up more and lose more voltage. Its 4 mm² conductor is the biggest in this wire range, which keeps resistance per metre low.
Frequently Asked Questions
Is black wire used for neutral or for line?
Either, depending on the code. Older Indian and British wiring used black for the neutral; the harmonised code used in Europe makes it a line (phase) colour; and in DC work it is usually the negative.
In which sizes is black wire available?
In all five sizes JLab makes: 0.5, 1, 1.5, 2.5 and 4 mm². The 2.5 mm² black wire is linked below.
Who makes this wire?
JLab manufactures it in Ambala, Haryana, and supplies it factory-direct.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a laboratory and electrical equipment manufacturer in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. JLab’s wire is made at its own works, not bought in, so schools, colleges, dealers and importers order straight from the manufacturer, which also handles their repeat orders. JLab exports worldwide and ships to buyers in every region — for example Bhutan in South Asia, Uzbekistan in Central Asia, Singapore in Southeast Asia, Kenya in East Africa and Papua New Guinea in Oceania.
More Electrical Wire
- Electrical Wire, 4 mm² red — this size in red.
- Electrical Wire, 4 mm² blue — this size in blue.
- Electrical Wire, 4 mm² ground — this size in the ground colour.
- Electrical Wire, 2.5 mm² black — black, one size down.
See every item in Basic Electronics and Electronics Lab Equipments.
Request a Quote
Put in an enquiry with the Add To Cart button or the contact page, noting the rolls needed, the delivery destination and, for export, the port or city and terms such as FOB or CIF.
Last updated: 22 October 2026
