Schneider Electric JA36030 I-Line Circuit Breaker

The Schneider Electric Square D JA36030 I‑LINE Molded Case Circuit Breaker is a 3‑pole, 30 A protection device in the JA36 frame size, delivering up to 36 kA interrupting capacity at 480 VAC (typical) to guard industrial and commercial circuits from overloads and short circuits, with a thermal‑magnetic trip for reliable coordination. Designed for seamless insertion into Square D I‑LINE panelboards and switchboards, it mounts on the panel bus (I‑LINE bus mount) and is rated for voltages up to 600 VAC, with UL 489 / CSA certifications and an industrial‑range operating temperature. It is commonly used for branch circuit, feeder, and equipment protection in commercial buildings, industrial facilities, data centers, and service entrance panels, and electricians use it for replacement, retrofit, and system upgrades; common replacements include JA36020, JA36040, and NF36030.