Siemens 5SY6220-7 20A 2P 400V Circuit Breaker | AmpState

Siemens 5SY6220-7 20A 2P 400V Circuit Breaker is built for everyday electrical work and trusted circuit protection in panelboards, load centers, and electrical distribution systems. This two-pole breaker is designed to deliver reliable protection for your critical circuits while simplifying installation and servicing.

Great for retrofit projects and maintenance planning when keeping the exact part number matters for compatibility, ordering accuracy, and service records. The 5SY6220-7 preserves continuity across upgrades and replacements, so you can keep your infrastructure consistent without surprises.

Key specifications at a glance:

• Amperage: 20 A
• Poles: 2
• Voltage rating: 400 V
• Part Number: 5SY6220-7
• Application: Circuit protection in panelboards, load centers, and electrical distribution
• Manufacturer: Siemens
• Availability: AmpState carries this model

Why this Siemens breaker stands out for real-world electrical work:

• Direct compatibility with Siemens panelboards and distribution equipment, reducing guesswork during installations or replacements.
• Two-pole design bound to 400V systems, enabling coordinated protection across multi‑wire and three‑phase distributions.
• Part-number stability for retrofit and maintenance stock — simplify inventory management and avoid mis-orders.
• Clear, consistent identification enables faster service calls and lowers downtime in busy facilities.
• Support for compatibility checks: if you’re unsure about fit, you can reach out and we’ll help confirm whether this 5SY6220-7 is the right match for your setup.

This unit is ideal for electricians, facility managers, and maintenance teams who value reliability, standardization, and efficient procurement. It’s especially well-suited for upgrading aging panels, stocking spare breakers for preventive maintenance, and ensuring consistent part numbers across multiple sites.

Use cases and practical scenarios:

• Replacing a worn or tripped 20A, 2P breaker in a Siemens panelboard during routine maintenance.
• Stocking a single part number for multi-site retrofit projects to streamline ordering and reduce downtime.
• Maintaining consistent inventory when upgrading electrical distribution in commercial or industrial facilities.

Compared to generic alternatives, the Siemens 5SY6220-7 provides guaranteed compatibility with Siemens equipment, helping you avoid mismatched trip characteristics or fit issues. It also supports smoother maintenance workflows by aligning with existing part numbers and procurement processes.

Need assistance confirming fit or placing an order? Message us and we’ll help verify compatibility and get you the right part quickly.