Part Number ETN 3370-20S31 having (CAGE Code 30086) and FSC 5925 Circuit Breakers in stock with ready to ship. Get an instant quote for ETN 3370-20S31 Circuit Breaker by Spd Electrical Systems Inc. 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.