What is the correct wiring configuration for connecting SLC loop devices to the FlexES panel for Class A and Class B?

ESSERFlexESMar 19, 2026
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The FlexES Control panel connects SLC loop devices through esserbus modules using terminals 1 (A+), 2 (A-), 4 (B+), and 5 (B-). For Class A (Loop) configurations, the wiring starts at terminals 1 and 2 and returns to terminals 4 and 5 to allow monitoring from both sides (Page 75, 76) [1].

For Class B (Spur/Stub) configurations, devices are wired as stubs, and the system supports simultaneous loop and spur topologies on a single circuit (Page 76) [1].

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

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