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How many relay packs can be connected to SER8300 line voltage room controller?

A maximum of 10 SC3***E Relay Packs can be used for a single SER83XXA Room Controller. Only ONE SC3XXXE Relay Pack with remote monitoring inputs can be used under a single SER83**A Room Controller. All other slave units must be SC3XXXE Relay Pack(s) without remote inputs.

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