Siemens - 8PX2 - Breaker MCC Bucket - 400 A, 480 V, 42" Height, 3 P | AmpState

Upgrade or retrofit your industrial motor control setup with the Siemens 8PX2 Breaker MCC Bucket—a precision-engineered 400 A, 480 V, 3-Pole solution designed to drop seamlessly into Siemens 8PX2 MCC lineups. Built for OEM replacement and retrofit applications, this 42" tall bucket delivers dependable performance in demanding environments where uptime and protection of large motors matter most.

Why this MCC bucket stands out

OEM-fit reliability—specifically designed for the Siemens 8PX2 MCC family, ensuring exact compatibility with bus connections, mounting patterns, and interlocks. High-current capability—rated for 400 A continuous service at 480 V, making it ideal for large motors, pumps, compressors, and other high-demand loads. Retrofit-ready—a practical, cost-effective choice for modernization projects or equipment refresh, allowing you to preserve existing enclosures while upgrading to trusted Siemens components.

Key specifications

• Brand: Siemens
• Series: 8PX2
• Configuration: Breaker MCC Bucket
• Rating: 400 A, 480 V, 3-Pole
• Bucket Height: 42"
• Application: OEM replacement and retrofit within Siemens 8PX2 MCC lineups

Ideal use cases

• Replacing a worn or damaged MCC bucket in existing 8PX2 assemblies to restore full protection and control for large 3-phase motors.
• Retrofits that elevate motor control performance in manufacturing lines, water treatment facilities, HVAC systems, and pumping stations.
• New installations that require a proven, high-capacity 3-pole breaker bucket compatible with Siemens MCC architectures.

What problems this bucket solves

• Reduces downtime by ensuring a precise fit with Siemens 8PX2 enclosures, eliminating compatibility guesswork.
• Delivers reliable high-current protection for critical equipment operating at 480 V, helping safeguard motors from overload and faults.
• Simplifies maintenance and spares stocking—keep a genuine Siemens MCC bucket on hand for quick OEM-style replacements.

Installation and compatibility tips

Before installation, verify that your enclosure is designed for a 42" tall MCC bucket and that the 8PX2 series is the intended platform. Ensure proper alignment with bus bars and interlocks, and follow standard safety procedures for disconnecting power and testing after installation. This bucket is engineered to drop into Siemens 8PX2 MCC configurations without modification, streamlining retrofits and OEM replacements alike.

Why AmpState

AmpState supplies high-quality Siemens MCC components worldwide, enabling you to source trusted parts like the 8PX2 Breaker MCC Bucket with confidence. Whether you’re servicing a single facility or outfitting multiple sites, AmpState’s commitment to authentic Siemens gear helps you maintain performance, safety, and regulatory compliance across your motor control ecosystem.