K21-36793 LiftMaster Transformer 208-230/460 Volts Logic 5

The LiftMaster K21-36793 Transformer is a genuine OEM replacement part designed specifically for Logic 5 commercial garage door operator systems. Engineered for high-performance reliability, this multi-voltage transformer supports 208V, 230V, and 460V input configurations, delivering the correct low-voltage power required by the control logic and accessory systems in LiftMaster’s Logic 5 platforms.

Ideal for repair and maintenance of commercial or industrial LiftMaster operators, the K21-36793 ensures dependable operation and safe voltage regulation within the opener’s internal circuitry.

Key Features

• Part Number: K21-36793

• Voltage Input: 208V / 230V / 460V (multi-tap input design)

• Compatibility: Specifically designed for LiftMaster Logic 5 commercial door operators

• Function: Steps down high voltage to appropriate control board voltage

• OEM Quality: Manufactured to LiftMaster’s original specifications

• Application: Used in high-voltage commercial and industrial garage door systems

Applications

• Sectional and rolling steel commercial garage doors

• High-cycle, heavy-duty commercial environments

• LiftMaster Logic 5 motor units requiring transformer replacement

Benefits

• Restores safe and consistent power delivery to Logic 5 control systems

• Reduces downtime by replacing faulty or degraded transformers

• Built for high-performance and long-lasting reliability

• Ensures compatibility and safety in multi-voltage installations

• Easy to install as a direct replacement part