Square D | RJA36100CU33A | Circuit Breaker | 33A | 3-Pole | 600V

Meet the Square D RJA36100CU33A — a purpose-built circuit breaker engineered for reliability in 3-phase, 600-volt systems. This 3-Pole, 33A device is tailor-made for maintenance, retrofit, and replacement projects where exact specifications matter, ensuring your panel continues to protect people and equipment with precision.

Key specifications at a glance

• Amperage: 33A
• Poles: 3-Pole
• Voltage rating: 600V
• Part number: RJA36100CU33A

Why this breaker stands out in the field

• Exact-match reliability for maintenance, retrofit, and replacement—designed to align with your existing Square D installations and 3-phase, 600V circuits.
• Clear compatibility signal: the part number is the most reliable reference for ensuring a correct fit, reducing the guesswork during procurement.
• Built to handle real-world load scenarios in commercial and industrial environments where 3-pole protection is essential for protecting both equipment and personnel.

Ideal use cases

• Upgrading an aging or failing breaker in a 3-phase, 600V service panel without changing other components.
• Retrofit projects where you need to match exact amperage, pole count, and voltage to preserve panel compatibility.
• Replacement in systems that require dependable 33A protection across three conducting paths, maintaining coordinated protection strategies.

Installation and compatibility tips

• Always verify fit and ratings against your panel labeling before ordering. The part number is the most reliable reference for compatibility.
• Consult your electrical panel’s documentation to confirm that a 3-Pole, 33A, 600V device aligns with the panel’s trip curve and wiring configuration.
• Follow manufacturer installation guidelines for secure mounting and proper electrical torque values to maintain optimal protection performance.

Whether you’re performing routine maintenance, a critical retrofit, or a like-for-like replacement, the Square D RJA36100CU33A delivers the precise specifications you need to keep a 3-phase 600V system running safely and efficiently. Add it to your cart with confidence, guided by the certainty that this part matches the exact reference your installation requires.