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Black Test Lead

Black Test Lead

Product Code : JA-EE-7573

The Black Test Lead (SKU JA-EE-7573) is a 500 mm banana plug test lead with a 4 mm stackable connector at each end, used to connect meters, power supplies and circuit boards that have 4 mm sockets. With the same connector on both ends it can join any two 4 mm sockets, and further plugs can be stacked on it where several connections meet. JaincoLab supplies this black banana plug test lead, with a red version, to school and college physics laboratories.

Specifications

The Black Test Lead is 500 mm long and has a 4 mm stackable connector fitted at each end, so it connects socket to socket on meters, supplies and boards, and each end accepts another 4 mm plug stacked on top of it.

ProductBlack Test Lead
SKUJA-EE-7573
ColourBlack (also available in red)
TypeStackable banana plug test lead
Length500 mm
Connectors4 mm stackable connector at each end

Uses of the black banana plug test lead

The black test lead is used to take the negative or common connection between 4 mm sockets, for example from a power supply to a circuit board or from a board to the common terminal of a meter, and it pairs with the red test lead for colour-coded wiring on the bench.

  • Socket-to-socket connections between power supplies, meters and circuit boards
  • Negative or common-side wiring alongside the red test lead
  • Stacking extra leads at a junction without removing existing plugs
  • Linking modular circuit boards and experiment panels fitted with 4 mm sockets
  • Electricity practicals on current, voltage and resistance in schools and colleges

Scope of supply and ordering

This listing covers the black 500 mm banana plug test lead with 4 mm stackable connectors at both ends. The red version (Red Test Lead) is listed separately. Accessories, spares and quantities are confirmed on the quotation.

Minimum order quantity, lead time and packing are confirmed on each quotation according to the number of leads and the delivery destination. JaincoLab supplies test leads for a single laboratory or in bulk for colleges, education projects and tenders, and exports to Africa, the Middle East and South and South-East Asia.

Frequently asked questions

What connectors does the Black Test Lead have?
It has a 4 mm stackable connector at each end of a 500 mm lead.

How is it different from a crocodile clip lead?
The test lead has 4 mm connectors on both ends for socket-to-socket wiring, while the Miniature Crocodile Clip leads carry a crocodile clip for gripping wires and electrodes.

Is a red test lead available?
Yes. The test lead is available in red or black; the red one is listed as Red Test Lead.

Related products

More leads and circuit accessories are listed under Electricity Equipment by JaincoLab, a physics lab equipment manufacturer in India.

Request a quote

To order the Black Test Lead, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Tender and project enquiries can be sent through the tenders page.

Last updated: September 2026

   
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Office Address

Jain Scientific Suppliers
2475-84, Hargolal Road,
Ambala Cantt, Haryana, India

[email protected]

+91-85699-09696

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