Accessory for Source Changeover Switch: This indicates that the product is not the main source changeover switch itself but an additional component or part designed to complement or enhance the functionality of a source changeover switch.
Downstream 4P BB Coupling: This provides specific details about the application of the accessory. It suggests that the accessory is intended for use downstream (after) the source changeover switch, and it is designed for a four-pole (4P) configuration with busbar (BB) coupling. The term "busbar" typically refers to a metallic strip or bar used for distribution of electric power.
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Accessory for Source Changeover Switch: This indicates that the product is not the main source changeover switch itself but an additional component or part designed to complement or enhance the functionality of a source changeover switch.
Downstream 4P BB Coupling: This provides specific details about the application of the accessory. It suggests that the accessory is intended for use downstream (after) the source changeover switch, and it is designed for a four-pole (4P) configuration with busbar (BB) coupling. The term "busbar" typically refers to a metallic strip or bar used for distribution of electric power.
The SCHNEIDER accessory is designed to be used with a source changeover switch, and its application is downstream, likely involving a four-pole configuration with busbar coupling. This type of accessory is often used in electrical distribution systems to manage the switching between power sources and ensure a reliable and efficient power supply.