Siemens QF240AN Molded Case Circuit Breaker

Siemens QF240AN Molded Case Circuit Breaker is a 2‑pole, 40 A protective device rated for 120/240 V AC, featuring a plug‑on neutral (AN) configuration in the QF family. With a 10 kA interrupting capacity at 240 V, it provides reliable short‑circuit protection for branch circuits in residential and light commercial distribution panels; the AN suffix denotes the plug‑on neutral variant, aligning with other QF models such as QF130AN. This plug‑in breaker is commonly used where a dedicated neutral is required in the panel, and it is suitable for 120/240 V single‑phase circuits in standard Siemens Q‑frame panelboards and enclosures. Key specs: 2P, 40 A, 120/240 VAC, 10 kAIC at 240 VAC, plug‑on neutral variant (AN).