ETI ETIMAT 10 miniature circuit breaker 2P 125A B 15kA (2123733)

ETIMAT 10 from ETI is a miniature circuit breaker designed for protection of electrical circuits against overload and short circuit in AC networks. It is intended for use in power distribution systems where switching and protective equipment must operate under elevated load conditions. With a rated current of 125 A, this device is suitable for main or feeder lines in commercial and industrial installations, as well as other circuits that require protection at higher current levels. The breaker has 2 poles, allowing simultaneous disconnection of two conductors in accordance with the connection scheme used in the distribution board. Its B tripping characteristic indicates a more sensitive response to overload and short-circuit conditions, which makes it appropriate for circuits without significant inrush currents and where fast line disconnection is required. The breaking capacity of 15 kA provides interruption capability for high fault currents within the declared limits, which is an important parameter for systems with increased short-circuit levels. The device is rated for AC voltage up to 415 V and operates at a frequency of 50/60 Hz. These electrical ratings make it suitable for commonly used low-voltage power networks. The rated impulse withstand voltage Uimp of 4 kV indicates resistance to short-duration voltage surges, supporting operation in environments where transient overvoltages may occur. The specified conductor cross-section range of 25–50 mm² allows connection of large cross-section power conductors, which is relevant for incoming feeders and heavy-duty distribution circuits. The breaker complies with IEC/EN 60947-2, confirming conformity with the standard for low-voltage switchgear and controlgear. In practice, it serves as a protective and switching element in electrical panels of residential, commercial, and industrial facilities. Its combination of 2-pole construction, 125 A rating, B curve, 15 kA breaking capacity, AC operation, 415 V rated voltage, and conductor compatibility within 25–50 mm² defines its role in circuits where both electrical protection and reliable power distribution are required.