Square D PKA36120U44A Circuit Breaker, 1200A, 3-Pole, 600V

The Square D PKA36120U44A Circuit Breaker is engineered for rugged industrial electrical service, maintenance, and replacement projects. Designed to protect three-phase systems, this 3-pole unit handles demanding loads at up to 600 V, with a robust 1200 A rating to shield feeders and critical equipment from overloads.

• Part number: PKA36120U44A
• Manufacturer: Square D
• Product type: Circuit Breaker
• Amperage: 1200 A
• Poles: 3
• Voltage rating: 600 V
• Applications: industrial electrical service, maintenance, and replacement projects
• Compatibility note: Verify fit by part number and application requirements

What makes this model stand out

With a 3-pole design optimized for 3-phase distribution, the PKA36120U44A provides reliable protection for high-current feeders in manufacturing floors, data centers, and processing lines. Built by Square D, this breaker integrates smoothly with Square D panels and compatible switchgear, helping maintain electrical system integrity in demanding environments. The 600 V rating ensures suitability for standard industrial power distribution, while the 1200 A capacity supports substantial load profiles without sacrificing safety or reliability.

Ideal use cases

• Replacing failed or outdated breakers in industrial panels and switchgear
• Feeding or protecting large three-phase feeders in manufacturing lines
• Upgrading service equipment in facilities that operate at up to 600 V

How to ensure compatibility

To confirm this part fits your equipment, reference the exact part number—PKA36120U44A—against your panel labeling and the manufacturer’s compatibility lists. If you’re unsure, our team can assist in evaluating fit based on your application requirements. Message us for personalized compatibility verification and guidance on installation considerations.