Automatic circuit breaker ETI ETIMAT 10 3P+N 100A D 15kA (2156732)

ETIMAT 10 from ETI is an automatic circuit breaker designed for protection of AC electrical circuits against overload and short circuit. The 3P+N configuration makes it suitable for four-wire networks, where three phase conductors and the neutral conductor need to be switched in a coordinated way. Such an arrangement is commonly used in distribution boards of residential, commercial, and industrial installations, especially where it is necessary to protect feeders with elevated load levels. The device is rated for 100 A, so it can be applied in circuits with significant power consumption. The D tripping characteristic indicates increased tolerance to inrush currents, which is important for lines supplying equipment that generates short-term current peaks during start-up. This makes the breaker appropriate for electrical circuits with motors, transformers, and other loads with pronounced starting currents. The breaking capacity of 15 kA allows the circuit to be interrupted under high short-circuit currents, which is essential for systems with increased fault-current levels. The breaker is designed for 400 V AC networks at a frequency of 50/60 Hz, making it compatible with widely used mains supply systems. The rated impulse withstand voltage, Uimp, is 4 kV, which characterizes the device’s resistance to short-duration voltage surges. Compliance with IEC/EN 60898-1 and IEC 60947-2 confirms that the product meets the requirements applicable to modular protective switching equipment. For conductor connection, the breaker supports a rated cross-section of 25–50 mm², which enables installation in power circuits with appropriately sized conductors. ETIMAT 10 is intended for mounting in distribution boards where reliable disconnection, defined protective response, and compatibility with electrical network parameters are required. It is a practical solution for organizing protection of feeders in installations with high current demand and specific switching requirements for phase conductors and neutral.