Siemens NGB3B080 Bolt-On Circuit Breaker

Siemens NGB3B080 Bolt-On Molded Case Circuit Breaker provides 80 A of three‑phase protection for 480Y/277V power systems, with bolt‑on mounting for panelboard installations. It belongs to the NGB family and uses a thermal‑magnetic trip mechanism offering both long‑time and instantaneous trips; the device is rated up to 600V and carries a 25 kA short‑circuit rating at 480V. This three‑pole breaker is panel‑mounted and includes load‑side lug terminals, and it is suitable for reverse‑feed configurations in commercial and light‑industrial distribution panels that require robust 80 A protection at 480V. The NGB line is designed to fit standard MCCB footprints for retrofit or new installations in compatible Siemens panels.