Stackable Leads Red (Product Code: SLE/PHY/61) is a red 4 mm stackable lead used to make the positive-side connections in laboratory circuits, from the supply’s positive terminal to switches, meters and components. It measures 500 mm, and its stackable plug accepts a second lead in its back, so one positive terminal can feed several branches of an AC DC circuits experiment. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
| Parameter | Detail |
|---|---|
| Lead type | 4 mm stackable |
| Colour | Red |
| Length | 500 mm |
| Product code | SLE/PHY/61 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Red is the conventional colour for the positive side of a DC circuit, so a red lead signals “this goes to plus” before anyone traces the wire. Polarity matters most when ammeters, voltmeters, diodes and electrolytic components are in the circuit; with all positive links in red, a teacher can glance along a bench and spot a reversed meter before it is switched on.
When a circuit has several parallel branches, the red leads for each branch can be stacked on the supply’s positive socket instead of being squeezed into a terminal. Keep red and black leads hung separately on a lead rack after the lesson, so the next class picks up correctly coloured pairs without sorting.
ScienceLab is the trading name of Jain Scientific Equipments Private Limited, a registered MSME manufacturer (Udyam UDYAM-HR-01-0003714) and the OEM (original equipment manufacturer) of these red leads, made at its own licensed factory at Saha, Ambala, Haryana, India. Export consignments go out under Importer-Exporter Code AAECJ8618A (DGFT), so dealers and importers abroad buy from the same source as Indian schools. More is on the ScienceLab profile page.
Items that complete a colour-coded circuit set:
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What are the specifications of the Stackable Leads Red?
The Stackable Leads Red is a 4 mm stackable lead in red, 500 mm long. It suits the 4 mm sockets found on most school power supplies, meters and circuit boards.
Why use red leads for positive connections?
Using Stackable Leads Red for every positive connection follows the usual colour convention, so students and teachers can check polarity at a glance, especially before switching on meters or polarity-sensitive components.
Can Stackable Leads Red be stacked on one socket?
Yes. The Stackable Leads Red has a stackable 4 mm plug, so another lead can be plugged into its back and several branches can be fed from a single positive terminal.
Who manufactures the Stackable Leads Red?
Jain Scientific Equipments Pvt Ltd (ScienceLab) is the OEM manufacturer of the Stackable Leads Red and makes it at its own licensed factory at Saha, Ambala, Haryana, India.
Is a current rating available for the Stackable Leads Red?
A current and voltage rating for the Stackable Leads Red is not given in this listing. Please ask through the contact page so we can confirm it for your intended use.
How do I order Stackable Leads Red with other colours?
Request Stackable Leads Red together with black and yellow stackable leads in one enquiry, giving quantities per colour; ScienceLab quotes all three directly as the manufacturer for India and international markets.
Send the quantity of red leads, and any black or yellow leads, through the ScienceLab contact page or add them to the enquiry cart. Quotes come direct from the manufacturer.
Last updated: 24 September 2026