ABB SB340SGH4G 400A 3P 600V Circuit Breaker | AmpState

Meet the ABB SB340SGH4G—a robust 400 A, 3-pole, 600 V circuit breaker engineered for dependable protection in panelboards, load centers, and electrical distribution systems. This model is a smart choice for teams that require a precise part-number match, whether you’re stocking spare inventory or building out a panel project.

• Amperage: 400 A
• Poles: 3
• Voltage: 600 V
• Manufacturer: ABB
• Part Number: SB340SGH4G

Why this breaker stands out for professionals: it’s designed to integrate seamlessly with panelboards and load centers, offering reliable overcurrent protection in electrical distribution networks. If you’re coordinating maintenance, panel fabrication, or spare parts, the SB340SGH4G provides a direct part-number match that minimizes guesswork and ensures quick, accurate replacements.

Ideal use scenarios include retrofit projects, emergency stock for service teams, and new installations where exact part compatibility matters. In practice, this means faster downtime recovery, fewer mismatched components, and smoother project timelines—especially in facilities with ABB protection schemes or where standardized inventories are the norm.

Ordering guidance and compatibility: AmpState lists this unit clearly as available, and if you need help confirming fit or cross-checking against existing panels, you can message us for direct assistance. We’ll help you verify that the SB340SGH4G is the correct replacement or upgrade for your specific panelboard, load center, or distribution setup.

Choose the ABB SB340SGH4G when you value precise part-number accuracy, straightforward procurement, and dependable circuit protection in demanding electrical environments.