Feels well-built and suitable for everyday plant and maintenance use.
Facilities · Manufacturing
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| Series | Marq 21 |
| Amperes | 5 |
| Poles | 3 |
| Voltage | 480 |
| 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 module for demanding industrial motor control centers. Rated for 5 A at 480 V across 3 poles, this 15" tall bucket is designed to drop into Siemens Marq 21 MCC panels, delivering precise protection, reliable switching, and straightforward retrofit compatibility.
Ideal for OEM replacements and panel upgrades, this MCC bucket ensures your Marq 21 lineup maintains exact electrical characteristics and mechanical fit. That means reduced installation time, cleaner wiring, and consistent trip behavior across your motor control system. AmpState delivers genuine Siemens components worldwide, so you can count on authentic parts you can trust for long-term reliability.
Unlike generic replacements, this is a genuine Siemens Marq 21 MCC bucket, engineered for exact fit with Marq 21 panels. It preserves alignment between breakers and bus, maintains the intended trip characteristics, and integrates seamlessly with existing wiring harnesses and mounting provisions. The result is dependable protection for motors and drives, with fewer surprises during installation and operation.
Before replacing, confirm your panel model is a Marq 21 MCC and that the part matches the required 5 A, 480 V, 3-Pole configuration. Installation should be performed by a qualified electrical professional with proper de-energization and lockout procedures. For reliability and uptime, choose authentic Siemens components through AmpState, your global source for Siemens MCC parts.
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General feedback we often hear from customers purchasing industrial electrical parts.
Feels well-built and suitable for everyday plant and maintenance use.
Facilities · Manufacturing
Lead time was reasonable and the part matched expectations when it arrived.
Procurement · Ontario
Good value for industrial use. Customers mention easy installation.
Service tech · Field work