Part Number DA3-B0-24-640-121-D having (CAGE Code U7964) and FSC 5925 Circuit Breakers in stock with ready to ship. Get an instant quote for DA3-B0-24-640-121-D Circuit Breaker by Carlisle And Finch Company The. 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.