Load switch ETI SV 3125 3P 125A (2423317)

ETI SV 3125 is a load switch intended for switching electrical circuits under load in distribution boards and power installations. It is used where a circuit, feeder, equipment group, or individual consumer needs to be safely connected or disconnected without performing a protective function against overload or short circuit. For this reason, the device is suitable for industrial, commercial, and engineering electrical networks, where operational switching and clear isolation of circuits are required. The model is designed in a 3-pole version, which means it enables simultaneous switching of three phases. This configuration is especially relevant for three-phase systems, since it allows all phase conductors to be disconnected together. The rated current is 125 A, so the switch can be used in circuits with increased load and in applications where higher current-carrying capacity is needed. Such a parameter is important for main incoming circuits, distribution lines, and local sections that must be separated for maintenance or for switching between operating modes. As a load-breaking device, the SV 3125 belongs to the category of manual switching equipment. It is used to make or break an electrical circuit under operating conditions and serves as a commutation element rather than a protection device. This distinction is important in switchboard design: the load switch provides operational isolation and control, while overload and short-circuit protection must be implemented by separate protective devices. The ETI SV series is designed for use in electrical assemblies where dependable circuit separation and straightforward switching logic are needed. The 3-pole, 125 A configuration makes the SV 3125 a practical choice for three-phase distribution systems, control sections, and power panels. It can be integrated into systems that require clear manual disconnection of a line during servicing, troubleshooting, or equipment replacement, helping organize the electrical network in a structured and service-oriented way.