Siemens | LNX3B120 | Circuit Breaker | 1200A | 3-Pole | 600V

Siemens LNX3B120 is a robust 3-pole circuit breaker rated for 1200A and 600V, engineered for industrial electrical distribution and protection. Whether you're conducting maintenance, performing a retrofit, or replacing an aging breaker, this unit delivers reliable performance with a precise spec match to your system.

• Amperage: 1200A
• Poles: 3-Pole
• Voltage rating: 600V

Why this Siemens LNX3B120 stands out

• Precise compatibility for systems requiring a 3-pole, 600V protection device with a 1200A rating, ensuring coordinated protection and predictable tripping behavior.
• Clear identification with part number LNX3B120—your best reference when verifying fit, ratings, and cross-compatibility during maintenance or retrofits.
• Built for demanding environments where reliability and service continuity are critical, reducing unscheduled downtime.

Ideal use cases

Industrial plants, manufacturing lines, and large-scale electrical distributions that run high-current 3-phase loads benefit from this circuit breaker. It’s well-suited for panel upgrades, service replacements in legacy Siemens installations, and retrofits where the exact spec match is required to maintain code compliance and protection standards.

Practical guidelines for selection and installation

1. Verify that your panel or switchgear is rated for 1200A and 600V, and supports a 3-pole breaker of this size.
2. Use the part number LNX3B120 as the primary reference to confirm compatibility before ordering.
3. Engage a licensed electrician to perform installation, adhering to local electrical codes and safety practices.

Note: Always confirm fit, rating, and any panel-specific requirements prior to purchase. This ensures seamless replacement, reduces downtime, and maintains system protection as intended.