Square D | PKA36040CU63AE1 | Circuit Breaker | 63A | 3-Pole | 600V

Meet the Square D PKA36040CU63AE1 Circuit Breaker — a precision 63-amp, 3-pole protection device engineered for reliability in demanding electrical environments. Designed for maintenance, retrofit, and replacement projects where exact specs matter, this breaker preserves system safety across three-phase circuits at up to 600 volts.

When you need to match existing equipment, the PKA36040CU63AE1 is the right reference. The part number is the best compatibility reference, and you should confirm fit and ratings before ordering to ensure seamless installation.

Key specifications

• Amperage: 63A
• Poles: 3-Pole
• Voltage rating: 600V
• Part number: PKA36040CU63AE1

Why this Square D circuit breaker stands out

• Exact electrical characteristics: 63A, 3-pole, 600V, designed to protect three-phase circuits without altering your system's protection profile.
• Manufacturer-specific compatibility: Built to align with Square D panels and assemblies that accept the PKA36040CU63AE1, reducing fit risk during replacements or retrofits.
• Reliable replacement option: A drop-in replacement approach for aging or damaged breakers, helping you minimize downtime during service work.

Ideal use cases

• Maintenance and service: Replace worn breakers in existing Square D installations where a 63A, 3-Pole, 600V rating is required.
• Retrofit and upgrades: Modernize older panels with a compliant PKA36040CU63AE1 part to restore safe protection for three-phase loads.
• New installations requiring precise 63A three-phase protection in compatible Square D panelboards.

Compatibility and installation notes: Always confirm fit and ratings before ordering. The part number provides the most reliable reference for compatibility with your panel. For best results, consult your panel manufacturer’s guidelines and follow proper electrical safety procedures.