Westinghouse | NB21200WSK | Circuit Breaker | 1200A | 2-Pole | 600V

Meet the Westinghouse NB21200WSK circuit breaker—the high-current protection solution designed for demanding electrical panels. With a robust 1200 A rating, a 2-pole configuration, and a 600 V maximum, this breaker is built to safeguard large feeders and critical circuits in commercial and light-industrial environments.

• Amperage: 1200 A
• Poles: 2-Pole
• Voltage: 600 V
• Best compatibility reference: use the part number NB21200WSK when checking fit and compatibility
• Application focus: ideal for maintenance, retrofit, and replacement projects where exact specifications are required

Why this model stands out

• Designed for high-current protection in large distribution panels, ensuring reliable isolation of heavy feeders under fault conditions.
• Precision-spec compatibility: the NB21200WSK part number is the most reliable reference to confirm you’re ordering the exact match for your equipment.
• Versatile for ongoing system updates—whether upgrading a panel, replacing an aging breaker, or performing routine maintenance, this unit keeps your hardware aligned with your load requirements.

Ideal use scenarios

• Commercial facilities with substantial electrical loads needing dependable main feeder protection
• Retrofit projects where existing equipment requires the same amperage, voltage, and two-pole configuration
• Maintenance spares for critical panels to ensure quick, drop-in replacements and minimize downtime

Practical guidance for installation and procurement

• Always confirm fit and ratings against your panel’s labeling and manufacturer guidelines before purchasing.
• Keep the NB21200WSK part number as your primary reference to verify compatibility with your specific breaker panel or service equipment.
• For safe replacement, power down the system and follow your panel’s installation procedures, using proper torque specifications and alignment to ensure reliable operation.