Part Number PP21-1-20.0A-OB-S Circuit Breaker Accessories in stock with ready to ship. Get an instant quote for Sensata Technologies Inc part number PP21-1-20.0A-OB-S by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for PP21-1-20.0A-OB-S. Our dedicated account manager will get back to you within 15 minutes.