Electric Motor Control Circuit schematic with SCR and Protection

Detailed schematic of a three-phase motor control circuit featuring integrated protection components. The drawing illustrates a central control mechanism with silicon-controlled rectifier (SCR) technology, surrounded by protective elements including fuses and thermal monitoring. Key components include:

1. Three-phase motor connection (WYE grounded configuration) represented in the center with triangular elements in a circular arrangement
2. Multiple fuse protection circuits (shown on the right side with standard electrical symbols)
3. Fan cooling component integration for thermal management
4. Silicon-controlled rectifier module for power regulation
5. Ground connection and circuit isolation elements

The design follows standard electrical engineering conventions with precise dimensional specifications in millimeters. Notable measurements include a total circuit layout of 230 × 180 mm with specific component spacing optimized for heat dissipation and electrical isolation. The control circuit appears to be designed for industrial applications requiring precise motor speed regulation with integrated protection features.