Square D PJL36120U41 A - 1200 A, 3-Pole Circuit Breaker | AmpState

Square D PJL36120U41A is a 1200 A, 3-pole molded case circuit breaker engineered to protect branch circuits inside panelboards and load centers. Designed for durability and reliable protection, this device is a trusted choice for demanding electrical installations in residential, commercial, and light industrial settings.

• Compact molded-case design maximizes panel space, enabling efficient installation in tight electrical enclosures.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal overload sensing with magnetic short-circuit interruption. This means fewer nuisance trips and faster response when faults occur.
• Three-pole configuration provides synchronized disconnection for three-phase systems, ensuring proper coordination and safety in larger panels.
• OEM-compatible engineered to fit with matching Square D load centers and panelboards, simplifying replacement and upgrade projects.
• Versatile application suitable for residential, commercial, and light industrial environments where robust branch-circuit protection is required.

Technical snapshot

• Manufacturer: Square D
• Part Number: PJL36120U41A
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 1200 A
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

In panelboards and load centers that accept 3-pole, 1200 A molded case breakers, the PJL36120U41A is a robust choice for guarding heavy feeders and demanding equipment. It’s particularly well-suited for installations where space is at a premium and where reliable, repeatable protection is essential—such as commercial electrical rooms, light industrial panels, and service entrances that require coordinated trip across three phases.

Choosing this Square D breaker means aligning with a trusted protection solution that matches OEM panels for straightforward installation, consistent performance, and long-term reliability. For professionals upgrading or maintaining high-capacity electrical systems, the PJL36120U41A offers a precise, durable, and compatible option to safeguard circuits and keep operations running smoothly.