ETI ETIMAT 10 Circuit Breaker 2P B 40A 10kA (2123720)

The ETI ETIMAT 10 circuit breaker is intended for protection of electrical circuits against overload and short circuit in AC networks. It is suitable for use in distribution boards of residential, commercial, and small industrial installations where two conductors need to be disconnected simultaneously. The 2-pole design makes it practical for circuit separation and protection in single-phase and two-phase applications. This model has a rated current of 40 A and a B trip characteristic. Such a time-current curve is typically used for circuits with low inrush currents, where fast disconnection is required in the event of overload or short circuit. The breaking capacity of 10 kA indicates the device’s ability to interrupt high fault currents, which is an important parameter for low-voltage protective equipment. The breaker is rated for 400 V AC operation and a frequency of 50/60 Hz, so it can be used in standard alternating-current systems. The nominal impulse withstand voltage Uimp is 6 kV, which reflects resistance to short-duration voltage surges. Another important feature is the connection range for conductors from 1 to 25 mm², allowing the device to be integrated into different wiring arrangements without difficulty. This makes the breaker suitable for various installation tasks where conductor size and circuit design may differ. The device complies with IEC/EN 60898-1 and IEC 60947-2 standards, confirming its intended use for low-voltage circuit protection in modular electrical assemblies. As part of the ETIMAT 10 series by ETI, it serves as a circuit protection element for lighting lines, general-purpose power circuits, and other consumer groups that require reliable two-pole isolation, a 40 A current rating, and a 10 kA breaking capacity.