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Thermal Lo Limiter - Austdac

By Austdac Pty Ltd 

Catalog ID: FWT1

By Austdac Pty Ltd
Catalog ID:  FWT1
IECEx certifiedWide selection of Io currentsWide operating temperature rangeDIN rail mountingWide operating voltage range Compact sizeThe thermal Io limiter type FWT1 is an intrinsically safe Io current limiter that may be used to match a load maximum input current (Ii) to a power supply maximum output current (Io). The Io limiter is particularly useful when constructing panels or systems with multiple intrinsically safe loads powered from the same intrinsically safe power source.Occasionally one or several of the loads may have an Ii entity parameter that is lower than the Io entity parameter of the power supply, making the connection of the load to the power source unsafe.The thermal Io limiter type FWT1 solves this problem by providing an Ii parameter that is suitable for the power source and an Io parameter that is suitable for the load.The FWT1 is simply wired in series with the positive supply lead from the power source to the load with the low Ii parameter. Other loads connected directly to the power source are unaffected by the FWT1.The Uo parameter of the power source and the Ui par