Siemens SND6B120LIG Circuit Breaker, 1200A, 3-Pole, 600V

Engineered for reliability in demanding industrial environments, the Siemens SND6B120LIG circuit breaker delivers robust protection for heavy-duty power systems. With a 1200 A rating, a 3-pole design for three-phase networks, and a 600 V maximum operating voltage, this unit is built to meet the needs of service, maintenance, and replacement projects where dependable performance matters most.

Key advantages

• High-current capability: 1200 A rating supports large-load circuits and helps prevent nuisance trips on peak demand.
• Three-pole protection: 3-pole design provides synchronized protection across all phases in three-phase systems.
• Industrial-grade voltage rating: 600 V rating suitable for demanding industrial panels and equipment.
• Trusted brand and build: Siemens engineering delivers durable performance in challenging environments.
• Clear identification for easy ordering: Part Number SND6B120LIG simplifies procurement and replacement workflows.

Ideal use cases

• Industrial electrical service panels requiring robust, multi-phase protection
• Plant maintenance and equipment protection in manufacturing facilities
• Replacement of aging or out-of-spec breakers in existing switchgear
• New installations where a high-current, three-phase circuit breaker is needed

Specifications at a glance

• Amperage: 1200 A
• Poles: 3
• Voltage: 600 V
• Product Type: Circuit Breaker
• Part Number: SND6B120LIG
• Manufacturer: Siemens

Installation and compatibility

To ensure a proper fit, verify compatibility using the exact part number and your application requirements. If you need assistance matching a part number or confirming compatibility, send us a message and we’ll help confirm the best fit for your system.