Square D FHB36030 Molded Case Circuit Breaker

Square D FHB36030 Molded Case Circuit Breaker is a three‑pole protective device in the FH/I‑Line family, rated for 30 amps and designed for use in industrial and commercial distribution panels. It is specified for 600 VAC and 250 VDC, and uses a thermal‑magnetic trip mechanism with an 80% continuous‑load rating, offering an interrupting capacity of 65 kA at 240 V, 25 kA at 480 V, and 18 kA at 600 V. Conductor compatibility includes 14‑4 AWG aluminum or copper, with line‑side I‑Line connections and load‑side lug terminals, and the phase order is ABC. This model accommodates standard FH/I‑Line installations and is intended for circuits requiring protection up to 30 A in a 3‑phase system, delivering reliable coordination in systems where 600 VAC operation is common. It’s suitable for panelboards and switchgear that support Square D I‑Line molded case breakers, providing a precise, code‑compliant solution for moderate‑fault‑current environments.