According to project specifications, what is required for all manual motor starters used on the job?

Overload protection is essential for all manual motor starters used on the job as it ensures the safety and longevity of the motor by preventing it from overheating and sustaining damage. Overload protection devices are designed to monitor the current being drawn by the motor and will interrupt the power supply if the current exceeds the specified safe operating limits. This is critical in preventing potential hazards such as electrical fires, equipment damage, or failures that could arise from prolonged operation under overload conditions.

Other aspects like speed regulation, remote control, and emergency reverse, while they may be applicable in specific scenarios or advanced systems, are not universally mandated for all manual motor starters. Overload protection, on the other hand, is a standard safety requirement recognized in most electrical codes and project specifications to ensure worker safety and equipment reliability. Thus, it is the cornerstone of motor control safety practices.