Square D PLL34120 - 1200 A, 480 V, 3-Pole Circuit Breaker | AmpState

The Square D PLL34120 is a heavy-duty 1200 A, 480 V, 3-pole molded case circuit breaker engineered to deliver dependable branch circuit protection for panelboards and loadcenters. Designed to fit OEM panels and built with reliable protection in mind, this unit is a robust choice for demanding electrical environments.

• Compact molded-case design maximizes panel space, helping you fit larger protection without crowding the enclosure.
• Thermal-magnetic trip unit provides stable, repeatable protection by coordinating overload and short-circuit response across varying temperatures and loads.
• 3-pole, 480 V rating suits three-phase systems, delivering synchronized interruption for balanced distribution and motor circuits.
• OEM compatibility engineered to match with corresponding OEM loadcenters and panelboards for straightforward installation and dependable performance.
• Ideal for residential, commercial, and light industrial applications where reliable protection of branch circuits and protection against short circuits is critical.
• Part of Square D legacy built to meet the rigorous standards of electrical distribution panels while offering long-term durability in field conditions.

The PLL34120 is purpose-built to prevent damage from overcurrent events by swiftly interrupting fault currents, reducing potential downtime and equipment wear. Its 1200 A rating makes it suitable for high-demand feeder circuits, while the 480 V, three-pole configuration ensures safe, coordinated protection in three-phase installations. Whether upgrading an existing panelboard or provisioning a new installation, this breaker provides a reliable, plug-and-play solution within compatible Square D and OEM panel ecosystems.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: PLL34120
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 1200 A
• Voltage rating: 480 V
• Number of poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

For professionals seeking a durable, space-efficient, and compatible protection solution for three-phase systems, the Square D PLL34120 from AmpState offers precise protection and predictable trip performance when it matters most.