Metravi TL-75 Silicon Test Leads for Multimeter and Clamp Meter

A. Product Overview

The Metravi TL-75 is a professional test-lead set used to connect a digital multimeter or compatible clamp meter to an electrical circuit, component or test point.

The set includes one red probe and one black probe. The red lead is generally connected to the instrument’s measurement input, while the black lead is connected to the common terminal. Their flexible silicone insulation and comfort-grip probe bodies make them suitable for routine electrical measurement and troubleshooting work.

Main Features

• One red and black test-lead pair
• Double-insulated construction
• 1-metre silicone-insulated cables
• Right-angle shrouded banana plugs
• 4 mm banana-plug diameter
• 2 mm test-probe point diameter
• Comfort-grip probe handles
• Protective probe caps
• Banana-plug termination
• CAT II 1000V and 10A rating
• CAT III 1000V with protective caps
• CAT IV 600V with protective caps
• Recommended for general-purpose measurements
• One-year warranty

The product image and specification section on the catalogue page identify the TL-75 as the double-insulated model in the TL-70, TL-74 and TL-75 test-lead range.

B. Working Principle

The Metravi TL-75 works as the electrical connection between a measuring instrument and the circuit or component being tested.

One end of each test lead has a right-angle shrouded 4 mm banana plug. These plugs are inserted into the appropriate sockets of a compatible multimeter, clamp meter or electrical testing instrument.

The other end has a pointed test probe. The probe tips are placed on the required electrical test points. Depending on the function selected on the meter, the test leads carry the electrical signal between the circuit and the measuring instrument.

During Voltage Measurement

The probes are placed across two points in the circuit. The meter measures the electrical potential difference between those points.

During Resistance Measurement

The probes are placed across a resistor, wire or component. The meter applies an internal test signal and calculates the resistance from the response received through the leads.

During Continuity Testing

The probes are placed at two ends of a conductor, fuse, switch or connection. The meter checks whether a low-resistance electrical path exists.

During Diode Testing

The probes are connected across the diode terminals. The meter uses the test leads to apply a small signal and display the diode’s forward-voltage response.

The test leads do not perform the measurement independently. They transfer the test signal between the electrical point and the connected measuring instrument.

C. Why It Is Used

The Metravi TL-75 is used when a reliable and flexible connection is required between an electrical test instrument and the point being measured.

To Replace Damaged Test Leads

Worn insulation, broken conductors, damaged probe tips and loose plugs can affect measurement reliability and safety. The TL-75 can be used as a replacement lead set for compatible instruments.

To Perform General Electrical Measurements

The leads can support voltage, resistance, continuity, diode and other measurements provided by the connected meter.

To Reach Electrical Test Points

The 1-metre cable length allows technicians to position the meter conveniently while reaching terminals, components and wiring points.

To Improve Handling

The comfort-grip probes are designed to provide controlled handling during general testing and maintenance.

To Connect with Modern Measuring Instruments

The right-angle shrouded 4 mm banana plugs are designed for modern digital multimeters and other equipment fitted with compatible shrouded sockets.

To Support Higher Measurement Categories

When the specified protective caps are fitted, the catalogue gives the leads ratings of CAT III 1000V and CAT IV 600V. The correct protective configuration, instrument rating and safe measurement procedure must always be followed.

D. Suitable Buyers

Electricians

Suitable for installation checks, wiring tests, voltage measurements and continuity testing.

Electrical Maintenance Technicians

Useful for routine inspection and troubleshooting of electrical panels, machines and industrial equipment.

Multimeter and Clamp-Meter Users

Suitable for users requiring replacement test leads for compatible instruments with 4 mm shrouded input sockets.

Panel Builders

Useful for testing wiring connections, terminals, control circuits and assembled electrical panels.

Industrial Maintenance Departments

Suitable for general electrical servicing and preventive-maintenance activities.

HVAC and Refrigeration Technicians

Useful for checking supply voltage, wiring continuity, resistance and electrical components.

Electronics Service Engineers

Suitable for testing components, circuit boards, diodes, resistors and electrical connections.

Laboratories and Training Institutes

Useful for practical electrical-measurement demonstrations and laboratory testing.

Electrical Contractors

Suitable for commissioning, maintenance and fault-finding work at commercial and industrial sites.

Technical Hobbyists

Appropriate for general-purpose electrical and electronic testing with a compatible meter.

Frequently Asked Questions

1. What are Metravi TL-75 Silicon Test Leads?

They are a red and black pair of double-insulated test leads used with compatible digital multimeters, clamp meters and other electrical measuring instruments.

2. What is the cable length of the TL-75?

Each test lead has a cable length of 1 metre.

3. Are the cables silicone insulated?

Yes. The catalogue specifies 1-metre silicone-insulated test leads.

4. Is the TL-75 single insulated or double insulated?

The Metravi TL-75 has double insulation. The TL-74 shown in the same catalogue is the single-insulated model.

5. What type of connector is provided?

The leads have right-angle shrouded banana-plug terminations.

6. What is the banana-plug diameter?

The plug diameter is 4 mm.

7. What is the test-probe tip diameter?

The specified diameter of the test-lead point is 2 mm.

8. What is the current rating of the TL-75?

The catalogue specifies a CAT II 1000V and 10A rating.

9. What are the measurement-category ratings?

The TL-75 is rated CAT II 1000V and 10A. With the protective caps correctly fitted, the catalogue specifies CAT III 1000V and CAT IV 600V.

10. Are protective caps included?

The product is shown with protective caps, and the higher CAT III and CAT IV ratings apply only when the specified protective caps are fitted.

11. Can the TL-75 be used with a clamp meter?

Yes, provided the clamp meter has compatible 4 mm shrouded measurement sockets and supports measurements through external test leads.

12. Can these leads be used with any multimeter?

They are intended for instruments with compatible 4 mm shrouded sockets. Compatibility, input spacing and measurement ratings should be checked before use.

13. Can the TL-75 measure current directly?

The test leads only carry the measurement signal. Current measurement depends on the connected meter, its input terminals, fuse rating and selected function. The specified lead rating must not be exceeded.

14. Can the test leads be used for continuity testing?

Yes. They can be used for continuity testing when connected to a compatible multimeter with a continuity function.

15. Can they be used for resistance measurement?

Yes. The leads can connect the multimeter to resistors, wires and components for resistance measurement.

16. Can they be used for diode testing?

Yes. They can be used with the diode-test function of a compatible digital multimeter.

17. Why are the banana plugs shrouded?

The insulating shroud reduces exposure around the metal connector when it is inserted into a compatible meter socket.

18. What is the benefit of right-angle banana plugs?

Right-angle plugs help reduce cable projection behind or below the instrument and can make the meter easier to handle during field testing.

19. What is the benefit of silicone-insulated cables?

Silicone insulation generally provides good flexibility, helping technicians position and handle the test leads during electrical measurements.

20. Does the Metravi TL-75 come with a warranty?

Yes. The catalogue specifies a one-year warranty.

21. When should test leads be replaced?

They should be replaced if the insulation is cut, cracked or worn, if the probe tips are loose or damaged, if the plugs do not fit securely or if readings become intermittent.

22. Should the leads be inspected before use?

Yes. Inspect the insulation, probe bodies, protective caps, plugs and exposed metal parts before every measurement. Damaged leads should not be used.

23. Who should buy the Metravi TL-75?

It is suitable for electricians, maintenance technicians, panel builders, electrical contractors, service engineers, laboratories, training institutes and users needing replacement multimeter or clamp-meter test leads.