Differential circuit breaker ETI KZS-2M 2P C 6/0.03 A 10kA, bottom connection (2172411)

ETI KZS-2M is a differential circuit breaker designed to protect electrical lines against overload, short circuit, and residual current leakage. By combining the functions of an automatic circuit breaker and a residual current device, it is used in distribution boards for residential, administrative, and small commercial installations where both circuit protection and personal safety are required. This model has 2 poles and a rated current of 6 A, which makes it suitable for protecting individual final circuits. The C tripping characteristic allows use in circuits with moderate inrush currents, such as lighting groups, socket circuits, and other loads with short-term starting currents. The rated residual current of 0.03 A corresponds to 30 mA and provides additional protection against electric shock in end-user circuits. The device uses type A detection, meaning it can respond to both alternating residual current and pulsating direct residual current. This is important for modern electrical systems where electronic equipment may be present. The breaking capacity of 10 kA indicates the ability to interrupt high short-circuit currents within the declared parameters, which is significant for dependable operation in low-voltage distribution networks. KZS-2M is supplied with bottom connection, so this installation feature should be considered during panel layout and wiring. The rated frequency of 50/60 Hz allows use in networks operating at standard mains frequencies. The permitted conductor cross-section is 1–25 mm², which provides flexibility when connecting different cable sizes according to project requirements. The device complies with IEC 61009, the standard for differential circuit breakers. This standard confirms that the product is intended for circuit protection with integrated residual current protection in modular distribution equipment. With its 2-pole design, type A operation, 6 A rating, 30 mA residual current threshold, C characteristic, and 10 kA breaking capacity, this ETI unit is a practical solution for protecting specific circuits in electrical distribution systems.