Siemens - Marq 21 - Breaker MCC Bucket - 40 A, 480 V, 9" Height, 3 P | AmpState

Engineered for Siemens Marq 21 motor control centers, the Breaker MCC Bucket from AmpState delivers a precise, plug‑in solution for demanding industrial protection. With a 40 A, 480 V, 3‑pole configuration and a compact 9" bucket height, it fits seamlessly into Siemens Marq 21 MCC lineups, supporting OEM replacement and retrofit projects with confidence.

Key specifications at a glance

• Configuration: Breaker MCC Bucket designed for Siemens Marq 21 MCC panels
• Electrical rating: 40 A, 480 V, 3‑Pole
• Bucket height: 9 inches
• Compatibility: Optimized for OEM replacement and retrofit applications within the Marq 21 series
• Source: AmpState provides Siemens MCC components worldwide, backed by a reputation for reliability

Why this bucket matters in real-world installations. It preserves the exact electrical characteristics and mounting geometry of the original equipment, reducing retrofit risk and ensuring consistent performance in motor control centers. When replacing a worn or failed bucket, this Siemens Marq 21 unit minimizes downtime and avoids compatibility surprises that can come with generic alternatives.

Ideal use cases

• OEM replacement for aging Marq 21 MCC panels to restore original protection and control functionality
• Retrofit projects that upgrade or refurbish existing motor control centers without re-engineering buswork or enclosures
• Spare or maintenance inventory for critical lines, helping plants stay online during unexpected outages

Practical benefits in operation. The Breaker MCC Bucket delivers reliable switching and protection for motor-driven processes, helping to safeguard equipment and personnel while supporting predictable maintenance routines. Its alignment with the Marq 21 family ensures installers experience straightforward mounting and consistent contact performance, avoiding the guesswork that comes with Non‑OEM replacements.

Tip for installers and engineers: verify your panel's Marq 21 configuration, confirm the 40 A, 480 V, 3‑pole rating aligns with the protected circuitry, and keep a compatible spare on hand to minimize downtime during scheduled maintenance or emergency repairs.