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Stackable Leads
Stackable Leads (Product Code: SLE/PHY/60) are black 4 mm stackable connecting leads used to wire power supplies, meters and components together in physics and electronics practicals. Each lead is 500 mm long, and the stackable design lets another lead plug into the back of the first, so several connections can share one terminal — everyday physics lab equipment for schools. They are made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Type | 4 mm stackable lead |
| Length | 500 mm |
| Colour | Black |
| Product code | SLE/PHY/60 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Are Black Stackable Leads Used For?
By convention, black leads carry the negative, 0 V or common-return side of a circuit. Teaching students to take every black lead back to the supply’s negative terminal makes a circuit on the bench easy to check against its diagram, and it cuts down wiring mistakes when meters are added. That habit carries straight into an Ohm’s law experiment kit or any series-and-parallel investigation.
Stacking is what saves time: when two branches must meet at the same terminal, the second black lead plugs into the back of the first rather than needing an extra connector. Pull a lead out by its plug body, not the cable, and set aside any lead whose plug has become loose or whose insulation is damaged.
What to Specify When Ordering
- Colour: this listing is black; red and yellow stackable leads are listed separately.
- Quantity of each colour per bench or per student group.
- Length: each lead is 500 mm, so check that it spans your usual bench layout.
OEM Manufacturer
Jain Scientific Equipments Private Limited, known by its trading name ScienceLab, is the OEM (original equipment manufacturer) of these leads and makes them at its own licensed factory at Saha, Ambala, Haryana, India. Because the black, red and yellow versions come from the same maker, a school can order a matched colour set in one quotation and reorder any single colour later. See the ScienceLab company profile for more about the company.
Related Physics Lab Equipment
Leads and instruments often ordered together:
- Stackable Leads Red — the positive-side partner to the black lead.
- Stackable Leads Yellow — a third colour for marking a separate branch or meter link.
- Crocodile Clips & Leads — for connecting to components that have no 4 mm socket.
- Digital Multimeter — measures the current and voltage in circuits wired with these leads.
- Power Supply Variable — a bench supply to power the circuit.
More items are in Physics Lab Equipment.
Frequently Asked Questions
What length and plug size are the Stackable Leads?
The Stackable Leads are 4 mm stackable leads with a length of 500 mm. The 4 mm size is the common socket size on school power supplies, meters and component boards.
What colour are the Stackable Leads in this listing?
The Stackable Leads listed under SLE/PHY/60 are black. Red and yellow Stackable Leads are listed separately, so a lab can colour-code negative, positive and branch connections.
What does “stackable” mean on the Stackable Leads?
Stackable means another lead can plug into the back of a Stackable Leads plug, so two or more connections can share one terminal without an extra junction block or adapter.
What voltage and current are the Stackable Leads rated for?
The voltage and current rating of the Stackable Leads is not stated in this listing. Ask us through the contact page and we will confirm it before you use the leads for your application.
Who manufactures the Stackable Leads?
Jain Scientific Equipments Pvt Ltd (ScienceLab) manufactures the Stackable Leads as the OEM at its own licensed factory at Saha, Ambala, Haryana, India, and supplies them directly to schools, colleges and dealers.
Can Stackable Leads be ordered in bulk for a whole lab?
Yes. Stackable Leads can be quoted in class and lab quantities, mixed with the red and yellow versions, for buyers in India and international markets. Share quantities per colour when requesting a price.
Request a Quote
List the number of black, red and yellow leads you need on the ScienceLab contact page or add them to the enquiry cart. The quotation comes directly from the manufacturer.
Last updated: 24 September 2026
