What is the maximum SLC wiring distance and resistance limit for the NFW2-100?

NotifierNFW2-100Mar 19, 2026
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The NFW2-100 signaling line circuit (SLC) supports a maximum total wire length of 10,000 feet (3,000 m) for all branches combined (Page 173) [1].

The maximum DC resistance is 40 ohms per branch for Style 4 (Class B) configurations and 40 ohms total for Style 6 and 7 (Class A/X) loops (Page 173) [1].

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AI-generated — verify against your panel's documentation and applicable codes (NFPA 72, local AHJ).

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