The Schneider Electric / Square D PJP36100U31A is a three-phase molded case circuit breaker designed to provide dependable protection for industrial and commercial power distribution systems. Part of the PowerPacT P-frame family, this breaker is built for high-capacity electrical applications where reliable overload and short-circuit protection are required. Rated for 1000 Amps, the PJP36100U31A is suitable for use on systems up to 600 VAC. Its 3-pole configuration makes it appropriate for three-phase installations, while its molded case construction provides a durable, compact solution for panelboard, switchboard, and equipment-level circuit protection. This unit includes a Micrologic 3.0 electronic trip system, which provides long-time and instantaneous protection functions. These trip features help protect connected equipment from sustained overload conditions and high-current fault events, improving system safety and reducing the risk of damage during abnormal operating conditions. The PJP36100U31A is an 80% rated breaker supplied with lugs and is commonly used in demanding power distribution environments where high amperage capacity and dependable fault interruption are essential. Its interrupting capacity is rated up to 100 kA at 240 VAC, 65 kA at 480 VAC, and 25 kA at 600 VAC, depending on system voltage. Designed under the Schneider Electric / Square D PowerPacT platform, this circuit breaker is built for compatibility with industrial electrical distribution equipment and is well-suited for applications requiring a 1000A, 3-pole protective device with electronic trip functionality. Specification Details Manufacturer Schneider Electric / Square D Part Number PJP36100U31A Product Category Molded Case Circuit Breaker Product Family PowerPacT P-Frame Frame Type PJP Rated Current 1000 A Voltage Rating 600 VAC Phase Configuration 3-Phase Number of Poles 3 Trip Unit Micrologic 3.0 Trip Technology Electronic / Solid-State Trip Functions Long-Time, Instantaneous Rating Type 80% Rated Mounting Style Unit Mount / Bolt-On Terminal Type Lugs Interrupting Rating 100 kA @ 240 VAC, 65 kA @ 480 VAC, 25 kA @ 600 VAC Frequency 50/60 Hz Wire Range 3/0 AWG to 500 kcmil, Al/Cu Application Industrial and Commercial Power Distribution Protection Type Overload and Short-Circuit Protection Compliance UL 489, CSA, IEC/EN 60947-2
