Square D | PKA36120 | Circuit Breaker | 1200A | 3-Pole | 600V

Meet the Square D PKA36120 circuit breaker, a rugged, high-capacity protector for three-phase electrical systems. With a 1200A rating and 3-pole configuration, it is built to guard industrial feeders and main distribution panels at up to 600V.

Key specifications

• Amperage: 1200A
• Poles: 3-Pole
• Voltage: 600V
• Part number: PKA36120

Designed for reliable maintenance, retrofit, and replacement

The PKA36120 is the precise compatibility choice when upgrading, repairing, or refreshing a panel that requires this exact Square D part. By matching the amp rating, pole count, and voltage, you minimize downtime and ensure consistent protection for critical equipment.

Why it matters

Using the exact part number is the best reference for compatibility. This reduces the guesswork during procurement and minimizes the risk of non-functional or unsafe installations. The three-pole design supports balanced three-phase loads, delivering coordinated protection across all phases.

Use cases and ideal applications

Best suited for industrial control panels, large motor drives, and commercial electrical rooms where 3-phase distribution is common. Ideal for retrofit projects updating aging equipment, maintenance cycles replacing worn breakers, or new installations requiring a 1200A protection device.

Practical tips for installation and selection

• Always confirm fit and ratings against your panel’s manufacturer specifications before ordering.
• Keep the PKA36120 as a reference part number when coordinating with your electrical supply chain to avoid mismatches.
• Inspect related components (bus, lugs, and mounting hardware) to ensure smooth replacement and secure mounting.
• Plan for future upgrades by checking whether your panel supports higher fault-current interrupting or requires compatible trip curves.

For professionals maintaining industrial power distribution, the Square D PKA36120 provides dependable protection with exact compatibility, helping you reduce downtime and keep critical equipment running smoothly.