Siemens - Marq 21 - Breaker MCC Bucket - 40 A, 480 V, 12" Height, 3 P | AmpState

Meet the Siemens Marq 21 Breaker MCC Bucket—engineered for industrial motor control centers that demand precise protection, reliable performance, and seamless integration. This 40 A, 480 V, 3‑Pole MCC bucket is built to fit squarely in Siemens Marq 21 MCC lineups, delivering an OEM‑grade replacement and turnkey retrofit solution that minimizes downtime and preserves control reliability.

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 40 A, 480 V, 3‑Pole
• Bucket Height: 12"

Why this MCC bucket stands out

• Exact fit for the Siemens Marq 21 motor control center system, ensuring compatibility with the bus, interlocks, and mounting interface you rely on.
• OEM replacement and retrofit capability means you can refresh aging MCCs without a full panel rebuild, reducing commissioning time and uncertainty.
• 3‑Pole configuration with a 40 A current rating supports common motor loads and feeder protection, helping you balance protection with performance.
• Compact 12" bucket height saves valuable cabinet space, making it suitable for retrofit projects where enclosure footprint matters.
• Designed for robust industrial environments, delivering predictable operation across temperature and electrical conditions typical in manufacturing, pumping, or processing facilities.

Ideal applications and use cases

Designed for OEMs, maintenance teams, and integrators working with legacy or new Marq 21 MCC installations. Use this Breaker MCC Bucket for:

• Replacement of failed or obsolete MCC buckets within existing Siemens Marq 21 systems
• Retrofits in facilities upgrading motor control capacity or consolidating control panels
• New builds where Marq 21 architecture is standard, ensuring consistent performance and component compatibility
• Critical line feeds and motor starters that require dependable, compliant 40 A/480 V protection

Installation and compatibility notes

To maximize reliability, enlist a qualified electrical technician familiar with Siemens MCC architectures. Verify:

• Fitment with the Siemens Marq 21 MCC lineup and exact bucket interface connectors
• Proper alignment with bus bars, interlocks, and mounting rails
• Correct wiring, terminations, and protective device coordination for the application
• Compliance with local electrical codes and the Marq 21 maintenance guidelines

When you replace or retrofit with the Siemens Marq 21 Breaker MCC Bucket, you’re investing in a component built to sustain motor control reliability in demanding environments while preserving the integrity of your overall MCC system.

Why choose AmpState for this part

AmpState provides high‑quality Siemens MCC components with a global reach. This Breaker MCC Bucket is stocked for fast fulfillment and backed by AmpState’s commitment to authentic parts, OEM compatibility, and dependable delivery—so your maintenance schedule stays on track and your downtime is minimized.