Square D FAL34020 Three Phase Circuit Breaker

Square D FAL34020 is a 3‑pole molded‑case circuit breaker (MCCB) rated 20 A at 480 VAC, part of the Square D FA/LA family in the F‑Frame design for unit‑mount installation in industrial enclosures and switchboards. It uses line and load lug terminals and measures about 4.5 in wide, 6 in high, and 4.16 in deep, weighing roughly 5 lb. The device supports 50/60 Hz operation with a 480 VAC nominal rating and a 250 VDC rating for control circuits; it is UL Listed and CSA Certified and HACR rated for HVAC loads. Its interrupting rating is 18 kA at 480 VAC and 10 kA at 240 VAC (IEC ratings include 415 VAC), with conductor options of #12–#4 AWG aluminum or #14–#4 AWG copper. This model is designed for use in industrial enclosures and switchboards where reliable three‑phase protection is required.