Part Number EA3 21 5SH310 having (CAGE Code R0349) and FSC 5920 Fuses Arresters Absorbers and Protector in stock with ready to ship. Get an instant quote for EA3 21 5SH310 Adapter Fuse by Wilhelmsen Callenberg A S Formerly Semco. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.