These test probes from Chauvin Arnoux are specifically designed for the voltage testers C.A 771 and C.A 773. They serve as replacement or additional probes for precise and safe measurement of electrical voltages in professional applications. The probes feature a diameter of 2 mm, enabling targeted and slip-resistant contact at narrow or small connection points. The construction complies with the standard IEC 61243-3, which applies to the safety of test equipment and accessories in electrical installations. The maximum voltage for which the probes are rated is 1000 V, making them suitable for use in low-voltage installations. The plug has a diameter of 4 mm (female) and ensures a stable connection to the test device.

Applications
These test probes are intended for use in electrical installations, maintenance work on machines and systems, and in industrial electrotechnics. They are particularly suitable for tasks requiring precise and secure contact, such as testing plug connections, terminals, or small circuit board connections. Use is exclusively with the voltage testers C.A 771 and C.A 773, for which they were specifically designed.

Functions and Equipment in Detail
The probes are fitted with a crystal cap, which improves visibility and orientation when connecting. The colour coding (red and black) supports differentiation between live and neutral conductors, helping to avoid errors when working with electrical installations. The shape and 2 mm diameter ensure precise positioning without damaging the insulation of wires. The plug connection with 4 mm (female) is compatible with the corresponding socket connectors of the C.A 771 and C.A 773 devices.

Technology Explained Simply
The standard IEC 61243-3 sets requirements for the safety of test equipment and accessories, particularly regarding insulation, mechanical strength, and electrical safety. Compliance with this standard means the test probes are suitable for use in electrical installations up to 1000 V and meet the required safety standards. The maximum voltage of 1000 V is a limit value defining the operational boundary—exceeding it is not permitted. The 4 mm (female) plug connection is a standard interface, ensuring a secure and slip-resistant connection to the test device.

Compatibility and Accessories
The test probes are exclusively intended for the voltage testers C.A 771 and C.A 773 from Chauvin Arnoux. This is a set of two probes, one red and one black. Use with other devices is not intended and may result in malfunction or hazards. The probes are not compatible with other test equipment or accessories using different plug diameters or standards.

Installation and Mounting
Mounting is done by simply inserting the test probe into the corresponding socket connector of the voltage tester. No additional mounting or tools are required. The connection is mechanically stable and secured by the shape of the plug and socket. The instruction manual for safe use is included in the delivery and provides guidance on correct handling and safe operation.

Operational Advantages
The precise 2 mm diameter probe enables targeted measurement at narrow or small connection points without damaging insulation. The colour coding supports correct conductor assignment, increasing both work speed and safety. Compliance with IEC 61243-3 and the maximum voltage of 1000 V ensure safe operation in low-voltage installations. The stable plug connection ensures a reliable electrical connection to the test device.

The instruction manual for safe use is included in the delivery and serves as guidance for handling and operating the test probes. No additional components or tools are required to mount or use the probes.