Stanley Access Technologies
185000-1
MC521 Classic Single Controller
MC521 Classic single (yellow face)
Identification
Yellow-face single-motor controller, face P/N 185000-1. Not interchangeable with dual 185000 from a title match.
Do not confuse with: Not dual 185000; not MC521 Pro; not an iQ board.
AutoDoor Atlas field photo. Last reviewed 2026-08-16.
Documented systems
Association is not automatic interchange. Verify the installed revision before ordering.
Request part ID · Voltage Drop · Battery Backup Runtime · Control & Motor Reference