Vacuum Interrupters, Inc. stocks a replacement for the ITT Jennings / Siemens-Allis RP-723B vacuum interrupter for use in Square D VACARC FVBS1121125 / Siemens FCV-500 vacuum circuit breakers. The RP-723B is a component in the Siemens-Allis vacuum tube assembly number 18-393-620-501 and 18-393-620-502.*
Our RVI-RP-723-B vacuum interrupter is rated 2000Amps, 15kV, 18kA, the same as the original RP-723B vacuum interrupter.
* All manufacturers names, trademarks and part numbers are used for reference purposes only. Vacuum Interrupters Inc. is not an authorized distributor or representative for the listed manufacturers. Designated trademarks, brand names and brands appearing herein are the property of their respective owners.