Schneider Electric FA32040 I-Line Circuit Breaker

Schneider Electric's Square D FA32040 is a 3-pole, 40 Amp I-Line molded‑case circuit breaker designed for 240 VAC three‑phase distribution. This FA‑series unit provides thermal‑magnetic protection with a published interrupting rating of 10 kA at 240 VAC, making it suitable for motor feeders and other three‑phase loads in commercial and light‑industrial panels that use I‑Line bus systems. It is a plug‑in, I‑Line style breaker in the F‑frame family and is intended for line‑side I‑Line connections with ABC phase configuration, enabling straightforward integration into Schneider Electric I‑Line panelboards. Rated for ambient temperatures up to 40°C, the FA32040 supports three‑phase circuits up to 40 A and is commonly used to guard feeders and equipment in control panels, switchboards, and power distribution assemblies where standardized 3‑pole protection is required. With its thermal‑magnetic trip mechanism, it reacts to overloads and short circuits, helping prevent damage to motors, transformers, and other 3‑phase equipment in 240 VAC distribution schemes.