Ensure the safety of your electrical system with the Siemens B340 Circuit Breaker. Its thermal-magnetic trip mechanism and three-pole design offer efficient protection against overcurrents, making it a practical choice for various applications.

Price range: $39.99 through $78.99
| Brand | Siemens |
| Series | BL |
| Amperage | 40A |
| Poles | 3 |
| Phase | 3 |
| Mounting Type | Bolt-On |
| Approval | UL Listed, CSA Certified, HACR Rated & NOM Certified |
| Mpn | B340 |
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