Differential circuit breaker ETI KZS-2M 2P 32A C type AC 10kA (2173127)

The ETI KZS-2M differential circuit breaker is intended for protection of electrical circuits against overload, short circuit, and leakage current. It is used in distribution boards of residential, commercial, and domestic electrical systems where combined protection against overcurrent and residual current is required in a single device. This model is rated for a current of 32 A and has a C tripping characteristic. Such a curve makes the device suitable for circuits with moderate inrush currents, including lines supplying loads with electric motors or other equipment that may briefly draw higher current at start-up. The rated residual current is 0.03 A, which provides sensitive protection against electric shock and adds an important level of protection for electrical wiring. The device is designed in a 1+N pole configuration, meaning it operates with the phase conductor and neutral. Its breaking capacity of 10 kA allows use in networks where higher short-circuit currents may occur. The rated frequency of 50/60 Hz ensures compatibility with common AC power systems. Type AC indicates that the breaker responds to sinusoidal alternating residual currents. Another practical feature is the supported conductor cross-section of 1–25 mm², which simplifies installation and makes the device suitable for a wide range of wiring configurations inside a panel. The product complies with IEC/EN 61009, the standard that defines requirements for differential circuit breakers. ETI KZS-2M is a suitable solution for group circuits that need simultaneous disconnection in case of overload, short circuit, and leakage current. With its 32 A rating, C characteristic, AC type, 10 kA breaking capacity, and 0.03 A residual current sensitivity, it is designed for protective use in electrical distribution systems where compact combined protection is required.