This product is a current measurement accessory from the brand Chauvin Arnoux, specifically developed for use with Qualistar power analysers and three-phase PEL power and energy recorders. It is designed for conducting tests on electrical components such as meters, built-in protection relays, or secondary circuits of current and voltage transformers, while maintaining uninterrupted power supply during the measurement. The connection is made via a special cable with ESSAILEC plug, enabling safe and uninterrupted measurements. This is particularly advantageous in industrial and commercial applications, as tests can be performed without interrupting operations, thereby increasing operator safety and improving measurement efficiency.

Applications
This accessory is designed for use in industrial and commercial environments where regular testing of electrical installations is required. It is particularly suitable for testing meters installed in energy distribution networks, as well as for diagnosing protection relays used in network protection technology. Testing of secondary circuits of current and voltage transformers is also possible, with measurements taken directly at the secondary outputs without affecting the primary power supply.

Functions and Equipment in Detail
The accessory enables safe and uninterrupted measurements by establishing a connection between the measuring device and the component under test via an ESSAILEC plug. This plug is specifically designed for use with the mentioned devices and ensures a stable and reliable connection. Measurements are thus performed without the risk of power interruption, which is especially important for critical installations. The included instruction manual describes the safe execution of tests and supports the user in correct handling.

Technology Explained Simply
The ESSAILEC plug is a special connector developed for connecting measuring devices to electrical installations in industrial environments. It enables a safe and reliable connection without interrupting the power supply of the system under test. This is particularly important when testing must be carried out during operation to verify the functionality of the installation without affecting operations. Using this plug reduces the risk of errors or damage that could result from power interruption.

Compatibility and Accessories
The accessory is compatible with all Qualistar power analysers and three-phase PEL power and energy recorders. The mentioned devices include models such as CA82xx, CA833x, CA843x, PEL10x, and PEL11x. It is specifically developed for use with these devices and ensures optimal performance. The connection is made via the ESSAILEC plug system, which is standardised for this device family.

Installation and Mounting
Installation is performed by connecting the cable with ESSAILEC plug to the measuring device and to the test connection point. The included instruction manual describes the correct procedure and safety precautions to observe during testing. No additional mounting or installation is required, as the accessory connects directly to the devices.

Operational Advantages
The main advantages lie in the ability to perform tests without interrupting the power supply. This increases operator safety and reduces operational downtime. Measurements can be carried out faster and more easily, as no additional measures for power interruption are required. The use of the ESSAILEC plug ensures a stable and reliable connection, increasing measurement accuracy. The instruction manual supports the user in correct handling and ensures safe execution of tests.

Scope of Delivery
The scope of delivery includes the connection cable with ESSAILEC plug and the instruction manual for safe execution of tests. The manual is in German and describes the correct use of the accessory.