Square D | PKL36100CU43A | Circuit Breaker | 1000A | 3-Pole

Square D | PKL36100CU43A | Circuit Breaker | 1000A | 3-Pole

Meet the Square D PKL36100CU43A, a purpose-built 3-pole circuit breaker engineered for demanding electrical environments. With a 1000A rating, this unit delivers dependable overcurrent protection for three-phase systems, making it an essential choice for maintenance, retrofit, and replacement projects where exact specifications matter.

Why this model stands out

• 1000A amperage rating provides strong protection for high-load feeders and critical equipment, helping safeguard your infrastructure from overloads and faults.
• 3-Pole configuration supports three-phase distribution, ensuring coordinated protection across all conductors for balanced, safe operation in industrial and commercial panels.
• Precise compatibility — the PKL36100CU43A part number is the best reference for fitment. Always verify this exact model against your panel’s ratings and mounting arrangement before ordering.

Ideal use cases

• Maintenance and servicing of legacy panels that require the specific PKL36100CU43A specification.
• Retrofit projects where upgrading to a 1000A, three-pole solution is needed to support expanding loads.
• Replacement of worn or failed breakers in commercial or industrial environments that demand exact compatibility to minimize downtime.

Installation and compatibility notes

• Before purchasing, confirm that your panel and bus configuration align with this unit’s ratings and physical form. The PKL36100CU43A part number should be your primary compatibility reference.
• For safe and reliable operation, rely on a qualified electrician for proper torque, terminations, and wiring practices when installing this high-current protective device.

Operational context and practical insights

• Designed for three-phase systems, this breaker helps maintain balanced protection across all phases, reducing the risk of uneven loading.
• Choosing the exact PKL36100CU43A variant simplifies inventory, ordering, and future replacements by providing a single, unambiguous reference for compatibility.
• Its high-current capability makes it suitable for critical feeders and equipment where consistent protection is non-negotiable.

Technical snapshot

• Amperage: 1000A
• Poles: 3-Pole
• Part number: PKL36100CU43A