Siemens | SND69120ANTH | Circuit Breaker | 1200A | 3-Pole | 600V | 35kA

Engineered for reliability in demanding industrial environments, the Siemens SND69120ANTH Circuit Breaker delivers robust main protection with a precise, match-ready profile for maintenance, retrofit, and replacement projects. This 3-pole device is built to handle high-current applications while keeping your power distribution safe and predictable.

Key specifications at a glance:

• Amperage: 1200A
• Poles: 3-Pole
• Voltage rating: up to 600V
• Interrupting capacity: 35kA

Why this Siemens circuit breaker stands out

• Designed for three-phase circuits, ensuring synchronized protection across all phases and preventing unbalanced faults from propagating.
• High-current capability (1200A) makes it suitable as a main protection device in large feeders and industrial panels.
• 600V operating range covers a broad spectrum of industrial power distribution setups, providing versatile compatibility with existing systems.
• 35kA interrupting capacity delivers rapid fault clearance, reducing equipment damage and downtime in the event of a short circuit.
• Manufactured to integrate with Siemens panels and protection schemes, supporting consistent trip characteristics and easier maintenance coordination.

Ideal use cases

• Maintenance and retrofit projects where exact specifications are required to maintain panel compatibility and protection coordination.
• New installations in facilities with high-power distribution needs that demand a reliable, scalable 3-pole breaker.
• Replacement scenarios where a like-for-like part reference (SND69120ANTH) ensures seamless sourcing and minimal planning.

Compatibility and installation tips

Important: confirm fit and ratings before ordering. The part number SND69120ANTH is the best reference for ensuring compatibility with your enclosure, bus design, and trip characteristics. When planning installation, verify:

• Panel type and mounting style match the SND69120ANTH specifications
• Conductor sizing and terminations align with the 1200A rating
• Electrical clearance and safety procedures for high-current devices are in place

Practical guidance for getting the most from this breaker

To maximize reliability and safety in your protection scheme, pair this breaker with correctly rated upstream protections and coordinate with downstream devices. Keep a precise record of the exact part number, rating, and installation date to simplify future maintenance and part replacement. For facilities planning, this Siemens circuit breaker offers a clear path to high-current reliability without sacrificing compatibility or serviceability.