Wittur Door Operator Circuit Board Midi Supra 903376G01K

Designed for Wittur-Selcom Midi Supra elevator door systems, this OEM controller board serves as the dedicated electronic control unit for the door operator. Identified by part numbers 903376G01K and 116366, it manages the complete door operating cycle—including opening, closing, acceleration, deceleration, and obstruction response. Engineered for demanding commercial elevator applications, the board continuously adjusts motor performance to deliver smooth, reliable door movement while accommodating varying door weights and operating conditions.

The controller supports advanced door operator functionality through intelligent speed profile management, continuous mass detection, and electronically regulated closing force. It processes signals from compatible door protection devices, including light curtains and safety edges, to reverse door motion when an obstruction is detected. A dedicated 24V emergency battery input allows the door operator to perform emergency door opening during power interruptions when used within a compatible system.

Originally developed for Wittur-Selcom Midi Supra door operators, this controller board is also found in elevator systems manufactured by Otis, Schindler, KONE, and TK Elevator where Wittur door packages are installed. It is equally well suited for modernization projects and retrofit applications utilizing Wittur door equipment with existing elevator control systems.

• OEM Wittur-Selcom door operator controller board
• Compatible with Wittur-Selcom Midi Supra door systems
• Associated part numbers: 903376G01K, 116366
• Dedicated controller for elevator door operator functions
• Controls door opening, closing, acceleration, and deceleration profiles
• Continuous mass detection for automatic motor performance adjustment
• Supports door packages up to approximately 1,200 kg
• Electronic closing force regulation
• Compatible with light curtains and door edge safety devices for obstruction reversal
• 24V emergency battery supply input for emergency door opening
• Used in OEM installations and modernization projects
• Commonly found in systems utilizing Wittur door equipment across multiple elevator manufacturers

Every replacement electronic component should be installed and verified by qualified elevator personnel using appropriate procedures and compatible system components. Proper installation and inspection help ensure reliable door operation and long-term system performance.