snippet: FLM-325-NA4 Supervised Output Modules (Class A and B). The modules provide a supervised polarity reversal output used for audible and visual signaling devices or to trigger a remote NAC power expander. They require a 24 VDC auxiliary input voltage that can be provided by the FPA-1000 Analog Addressable Fire Panels or other UL listed power supplies. The modules provide a Class B Circuit rated for 2 A at 4 VDC. They fit into a standard 4-inch square or double-gang electrical back box.

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