Siemens SND69120ANTH - 1200 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens SND69120ANTH—a 3-pole, bolt-on molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a robust 1200 A current rating and a 600 V maximum voltage, this breaker is built to handle demanding electrical needs in residential, commercial, and light industrial environments.

• Secure bolt-on mounting provides a rigid, vibration-resistant connection to the bus, reducing movement under heavy loads and improving long-term reliability.
• Thermal-magnetic trip unit delivers stable, repeatable protection by automatically responding to both overloads and short-circuits, helping prevent damage to wiring and equipment.
• OEM-loadcenter compatibility is designed to integrate seamlessly with matching Siemens loadcenters and panelboards, simplifying installation and stock management.
• Three-pole configuration supports three-phase protection where required, ensuring comprehensive coverage for larger electrical systems.
• High-current, high-capacity protection at 1200 A and 600 V makes this unit suitable for main or feeder protection in demanding panels and distribution setups.

Applications and use cases

• Main distribution panels in commercial facilities where robust three-phase protection is essential
• Loadcenters in light industrial setups that demand reliable, high-amperage overcurrent protection
• Residential-commercial hybrids and large home infrastructure projects requiring durable bolt-on MCCB protection
• retrofit and upgrade projects where OEM compatibility and solid mechanical mounting are priorities

Technical specifications at a glance

• Manufacturer: Siemens
• Part number: SND69120ANTH
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 1200 A
• Voltage rating: 600 V
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why this matters in real-world setups: the combination of bolt-on mounting, a thermal-magnetic trip mechanism, and OEM compatibility means fewer compatibility hiccups, quicker installations, and reliable protection for large-draw circuits. When you need a rugged, high-capacity breaker that you can trust to perform consistently over time, the Siemens SND69120ANTH delivers the precise balance of protection, durability, and ease of integration for your electrical distribution system.