AMC (Annual Maintenance Contract) service of an ACB (Air Circuit Breaker) involves periodic inspection, testing, and servicing of the breaker to ensure reliable and safe operation. The service includes cleaning of components, checking and tightening connections, testing tripping mechanisms, verifying insulation resistance, and replacing worn-out parts. AMC helps prevent unexpected failures, extends equipment life, and ensures compliance with safety standards. Trained technicians perform these tasks using standard tools and procedures. Regular maintenance under AMC enhances the performance of ACBs, supports system stability, and reduces downtime in industrial, commercial, or utility electrical systems, ensuring continuous protection against electrical faults.