Siemens MBK200A 200-Amp Main Breaker Kit for Ultimate Type Load Centers

Overview

The Siemens MBK200A 200-Amp Main Breaker Kit is designed to work with Ultimate type load centers. It provides a robust option to convert existing Ultimate main lug panels into main breaker panels, or to replace a worn or failed main breaker in a main-breaker type Ultimate load center. With a 200-amp rating and UL listing, this kit offers a reliable path to centralized protection in demanding electrical setups.

What you get and how it’s designed

The kit is a bolt-on type, meaning it is designed for a secure, straightforward installation within compatible panels. It is intended for use with Ultimate load centers rated for 200 or 225 amps, making it versatile for various service configurations. The product is UL listed, which provides a recognized standard of safety and reliability.

Key features

• 200-Amp main breaker kit
• Bolt-on type for easy mounting
• For use with 200- or 225-Amp Ultimate type load centers
• UL listed for dependable protection
• Converts Ultimate main lug centers to main breaker operation or serves as a replacement main breaker

Real-world scenarios and benefits

In practice, owners may upgrade an aging panel, simplify service entry, or reorganize protection points for easier maintenance. The MBK200A enables a single main breaker to govern power distribution from the panel, which can help streamline service calls and future upgrades. This kit is designed for current Ultimate-type panels, not older or non-Siemens configurations.

• Enhances main protection in compatible Ultimate load centers
• Supports 200-amp service with compatibility up to 225-amp units
• Designed to integrate with existing panel wiring diagrams
• May assist with planning panel upgrades or replacements

Important notes

Siemens advises against using “used” breakers. In Siemens panels, the use of a used breaker can void the panel warranty. Siemens does not sell used breakers or authorize third-party sellers for these parts. Always follow the panel’s wiring diagram and local electrical codes.