Load breaker ETI SV 340 3P 40A (2423323)

ETI SV 340 is a load breaker designed for switching electrical circuits under load in distribution switchboards and other low-voltage installations. Unlike protective devices, it is intended for manual switching of supply lines, sections, or groups of consumers, making it suitable for local isolation during maintenance, repair, or operational control of an electrical system. In practice, such devices are used where reliable disconnection is required without adding the tripping functions of a circuit breaker. The device has 3 poles, which allows simultaneous switching of a three-phase circuit. This pole configuration is important in systems where all phase conductors must be disconnected together to ensure correct control of three-phase loads and distribution circuits. With a rated current of 40 A, the breaker can be used in circuits designed for this operating load, provided the installation parameters match the electrical scheme. SV 340 belongs to the category of disconnect switches and is used as a switching appliance in switchgear assemblies. Its three-pole design makes it appropriate for distribution boards in industrial, commercial, and residential electrical installations where manual control of power is required. The breaker can be integrated into systems alongside other switchboard equipment according to the chosen mounting arrangement and circuit design. When selecting this type of equipment, the key parameters are the number of poles and the rated current, as they determine compatibility with the electrical network and the connected load. In this model, the combination of 3 poles and 40 A provides a solution for switching three-phase circuits in distribution installations where controlled isolation of the supply is needed.