Square D FA26020AC1021 Molded Case Circuit Breaker

The Square D FA26020AC1021 is a 2‑pole molded‑case circuit breaker rated for 600V and 20A, designed for I‑Line plug‑in mounting in FA series panels to protect feeders and branch circuits in commercial and light‑industrial power distributions. This thermal‑magnetic device provides reliable overload protection and short‑circuit interruption and is specified for operation in typical indoor environments up to 40°C ambient. As part of Schneider Electric’s Square D FA family, the FA26020AC1021 uses an I‑Line plug‑in connection that simplifies installation and service in compatible enclosures, letting it integrate smoothly with other FA‑style protectors and bus components. The 2‑pole design supports standard single‑phase applications in FA panel layouts and is commonly used to safeguard feeders and control circuits within panels, switchgear, and power distribution assemblies where compact, rugged protection is needed.