Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
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| Series | Marq 21 |
| Amperes | 40 |
| Poles | 3 |
| Voltage | 240 |
| Product Type | Breaker MCC Bucket |
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Siemens Marq 21 Breaker MCC Bucket — a purpose-built OEM replacement for industrial motor control centers, delivering dependable 40 A, 240 V, 3-Pole performance in a 15" tall bucket designed for Siemens Marq 21 MCC lineups.
Designed for OEM replacement and retrofit projects, this MCC bucket fits seamlessly into Marq 21 cabinets, preserving original electrical characteristics and mechanical fit to minimize downtime during upgrades or service intervals.
Why this bucket matters: When your Marq 21 MCC lineup needs a precise, factory-certified replacement, this bucket guarantees compatibility with the panel bus, interlocks, and mounting hardware, reducing the risk of fitment issues that can occur with off-brand substitutes. It also helps maintain compliance with Siemens specifications for motor control, protective relays, and feeder circuits.
Ideal use cases include:
Key benefits in practice:
Who should consider this part: plant maintenance engineers, OEM panel builders, and retrofit specialists who demand authentic Siemens components to protect uptime and ensure consistent electrical performance.
Availability and sourcing: AmpState supplies high‑quality Siemens MCC components worldwide, providing global support and ensuring you can source this Marq 21 Breaker MCC Bucket when you need it for replacements or upgrades.
Contact sales@ampstate.com
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General feedback we often hear from customers purchasing industrial electrical parts.
Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
Packaging was secure and the item arrived clean and ready for installation.
Electrical contractor · GTA
We’ve used this type on multiple jobs and it’s been reliable so far.
Panel shop · Canada/US