ETI SV 440 load switch 4P 40A (2423423)

ETI SV 440 is a load switch designed for switching electrical circuits under load in distribution boards and other electrical installations. It is used for manual switching on and off of circuits where controlled disconnection of power is required for individual groups of equipment or sections of a network. Such devices are applied in residential, commercial, and industrial systems when operational isolation of a circuit is needed without changing the wiring scheme. This model is made in a 4-pole version, which allows simultaneous switching of several conductors in three-phase or mixed networks. The 4P configuration is important for applications where all relevant conductors must be disconnected together to ensure clear circuit isolation during maintenance, local shutdown of equipment, or sectioning of the power supply. A four-pole design also makes the switch suitable for systems with more complex distribution layouts. The rated current is 40 A, which defines the permissible load during operation and determines the circuits where the device can be used. This parameter makes the load switch appropriate for lines that require manual control of the power supply within the specified current range. It performs a switching function and is intended for circuit control under load rather than as the main protective device. ETI SV 440 belongs to the SV series, which is intended for use in switchboard assemblies and electrical distribution systems. As part of modular electrical equipment, the device is suitable for installation in a distribution cabinet where orderly switching and isolation of electrical circuits are required. The article number 2423423 identifies this specific version within the ETI range. The combination of 4 poles and a 40 A rating makes this load switch a practical solution for electrical installations that need reliable manual circuit separation. It is suitable wherever the user needs to disconnect power to a selected section of the installation while maintaining a clear and simple switching function.