Rectifier diode module Features Electrically-isolated chip and baseboard ac 2500v Sealing package according to international Standard Full crimping structure, sensitive to Temperature and power cycle duty Modules under 350a with compulsive Wind-cooling. Modules under 400a either With wind-cooling or water-cooling Convenient installation, use and maintenance Compact and lightweight Welding technique under the protection of Vacuum and hydrogen gas Typical applications Dc power supply for instrument And equipment Ac/dc motor controls Various rectifying power supplies Soft start Welder Converter Battery charge and discharge Packing form: paper carton Packing size:43cm x 32cm x 34cm Capacity: 50piece/carton