Square D PJA36100U44AE1 1000A 3P 600V Circuit Breaker, Plug-On | AmpState

Square D PJA36100U44AE1 is a 3‑pole, 600V plug‑on circuit breaker engineered to shield panelboards, load centers, and electrical distribution systems from overloads and faults. With a 1000 A rating, it is built to handle high‑demand circuits typical of commercial and industrial environments, while the plug‑on design enables fast, secure installations and maintenance.»

Designed with retrofit work and maintenance planning in mind, this breaker helps keep your stock consistent. Keeping the same part number across replacements reduces downtime and simplifies ordering during upgrades or service campaigns.

• Manufacturer: Square D
• Part number: PJA36100U44AE1
• Product type: Circuit Breaker
• Amperage: 1000 A
• Poles: 3
• Voltage: 600 V
• Installation style: Plug‑On
• Applications: Panelboards, load centers, electrical distribution
• Availability: AmpState

Key use cases include retrofit projects where existing infrastructure relies on this precise part number, service planning for facilities with high electrical demand, and replacements in centralized distribution setups that require robust 3‑pole protection at 600 V.

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

Choosing the Square D PJA36100U44AE1 means you’re selecting a trusted, plug‑on solution designed for reliable protection in demanding power layouts, with the practical advantage of straightforward installation and consistent inventory across maintenance schedules.