Square D FA36070 I Line 3 Pole Circuit Breaker

The Square D FA36070 I-Line 3-pole molded-case circuit breaker is a 70-amp, 600-volt AC protective device from the FA family, designed for I-Line plug-in mounting in Square D panelboards. As a three-phase molded-case breaker, it employs a thermal-magnetic trip mechanism to provide overload and short-circuit protection for distribution circuits in industrial and commercial electrical systems. The FA36070 is rated for 600 V AC and features a 3-pole configuration for three-phase loads, with FA-type construction and I-Line mounting that fits compatible Square D FA panelboards and bus systems. This device is commonly used to safeguard feeders and branch circuits in electrical distribution panels, machine control cabinets, and other industrial control environments where reliable three-phase protection is required. The FA family is known for a compact form factor and robust isolation within a plug-in mounting footprint, enabling straightforward installation and service in demanding environments that rely on durable MCCB protection.