Circuit Breakers definition: A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess curr... Circuit Breakers Product Listing: 4973-06MHB-V0-I28,8949-H88/06BLKA/SN,7906-09MB,7906-37FB/SN,7915-15FTBN3N6-SN.Circuit Protection type:Circuit Breakers(342033),TVS - Diodes(153041),Fuses(69401),TVS - Varistors, MOVs(33902),Electrical, Specialty Fuses(27310) .Circuit Breakers has 9 pieces of spot stock price information, you can click the "RFQ" button to confirm the inventory and price with the Twicea.