Siemens 5SY63157 6A 3P 400V Circuit Breaker | AmpState

Siemens 5SY63157: 6A, 3-Pole, 400V Circuit Breaker

Trustworthy protection for everyday electrical work, the Siemens 5SY63157 is a genuine three-pole circuit breaker designed for panelboards, load centers, and electrical distribution setups. Built for reliability in retrofit projects and maintenance planning, this unit keeps your spare parts and replacement strategy consistent by preserving the exact part number across replacements.

Key specifications

• Manufacturer: Siemens
• Part number: 5SY63157
• Type: Circuit Breaker
• Amperage: 6 A
• Poles: 3
• Voltage: 400 V

Why this 5SY63157 matters

For professionals managing three-phase electrical systems, a genuine Siemens breaker like the 5SY63157 guarantees precise fit, consistent electrical characteristics, and seamless integration with existing Siemens panelboards and load centers. Its 3-pole design suits 400V three-phase networks, providing balanced protection across phases and simplifying maintenance entries where standardized parts are critical.

Ideal use cases

• Retrofit projects where the exact part number must be preserved to avoid compatibility issues with existing panels.
• Maintenance planning for panelboards and electrical distribution systems that rely on Siemens devices.
• New installations in industrial or commercial environments that use 400V three-phase circuits.

Support and compatibility

AmpState offers the Siemens 5SY63157 in stock for quick fulfillment. If you’re unsure about fit or compatibility, we’re ready to help confirm the correct part for your setup—just reach out and we’ll verify compatibility with your panelboards or distribution equipment.

Bring dependable protection to your three-phase distribution with a breaker you can trust to perform consistently. Add the Siemens 5SY63157 to your cart for a precise, retail-ready replacement that aligns with your existing Siemens infrastructure.