Maheshwari Electricals Mfrs. Pvt. Ltd supplies 415 V Automatic Relay Control Panels. Maheshwari Electricals Mfrs. Pvt. Ltd has been awarded an ISO 9001:2000 certification. 415 V Automatic Relay Control Panels are used to operate diesel engine in case of failure of mains. 415 V Automatic Relay Control Panels are used in critical applications where consistency of power supply is a must. The relay control panels have been widely acclaimed in various industries for their durability and accurate functioning.