These test leads from Chauvin Arnoux are standard test leads made of PVC, designed for general applications in the electrical and measurement technology sector. The set consists of two cables – one red and one black – each with a straight and an angled plug with a diameter of 4 mm. Both plugs are insulated, enabling safe handling even when in direct contact with electrical components. The leads are 1.5 m long and rated for a current flow of up to 15 A, making them suitable for use with measuring instruments such as multimeters, clamp meters, or other electrical testing devices.

Applications
These test leads are designed for measurements in electrical installations, particularly in environments complying with CAT IV and CAT III standards. The CAT IV category (600 V) allows use near power distribution equipment such as switchboards or meter boxes, while CAT III (1000 V) is suitable for measurements in electrical installations within buildings, such as lighting or heating systems. The combination of both categories expands the range of applications and enables flexible use in various electrical systems.

Functions and Equipment in Detail
The leads feature PVC insulation that is mechanically robust and chemically resistant. The 4 mm plugs are universally compatible and fit most common measuring instruments. The angled plug facilitates connections in tight or hard-to-reach areas, while the straight plug is intended for standard applications. The insulated plugs increase safety by preventing direct contact with conductive parts.

Technology Explained Simply
The specification 600 V CAT IV means the leads are designed for measurements in the highest safety category (CAT IV) up to 600 volts. This category includes the power distribution level, such as switchboards or meters. The 1000 V CAT III specification refers to measurements in electrical installations within buildings, such as lighting or heating systems. Thus, the leads are suitable for use in various electrical systems, with the maximum voltage varying according to the category. The current rating of 15 A is sufficient for most measurement tasks in craftsmanship and industry.

Compatibility and Accessories
The test leads are compatible with measuring instruments that support 4 mm plug connections. They can be connected to a wide range of multimeters, clamp meters, and other testing devices equipped with corresponding sockets. The colour coding (red/black) supports correct assignment of positive and negative poles during measurements.

Installation and Mounting
Installation is carried out by simply plugging the leads into the sockets of the measuring instrument and into the contacts to be measured. The angled plugs facilitate connections in confined spaces, while the PVC insulation provides mechanical and electrical safety. No additional tools or mounting aids are required.

Operational Advantages
The combination of PVC insulation, insulated plugs, and the dual CAT IV and CAT III rating provides high safety during measurements. The length of 1.5 m offers sufficient reach without being excessively long. The colour coding supports correct polarity, helping to avoid measurement errors. The leads are designed for use in electrical installations complying with CAT IV and CAT III standards, thus providing a safe and reliable measurement environment.