Main Breaker Conversion Kit, 200A 240V Bolt-On - Siemens MBK200A The Siemens MBK200A 200 Amp main breaker conversion kit is a reliable solution for upgrading a main lug load center to a main breaker configuration. Designed for use with Siemens 200 Amp and 225 Amp PL series load centers, this kit enables safe, code-compliant installation of a main overcurrent protection device where none previously existed?ideal for retrofitting existing panels to meet modern electrical standards. Featuring a 2-pole, 200-amp bolt-on breaker rated for 240 VAC, the kit provides robust circuit protection for residential or light commercial service panels. The breaker is designed for secure plug-in mounting and integrates seamlessly with compatible Siemens load centers, including Value Pack and Ultimate series models. Its ANSI-certified design ensures adherence to industry safety and performance benchmarks. Fully UL Listed and CSA Certified, the MBK200A meets rigorous North American electrical safety standards for indoor and outdoor installations. The conversion kit includes the main breaker and all necessary hardware for installation, simplifying the upgrade process for electricians and contractors. With a compact profile of 3.5 inches in height, 4.7 inches in width, and 6.3 inches in depth, it fits efficiently within standard panel configurations without requiring panel replacement. Built for durability and long-term reliability, the breaker is engineered to handle continuous loads up to its rated capacity and features a robust trip mechanism for dependable fault protection. Siemens backs the product with a lifetime warranty, underscoring its confidence in the quality and longevity of the component. Weighing 1.810 lbs and packaged in a protective box, the MBK200A is ready for immediate deployment in service upgrades, panel retrofits, or electrical system modernization projects. Features - Converts main lug load center to main breaker configuration - 200 Amp, 240 VAC, 2-pole bolt-on main breaker - Compatible with Siemens 200A and 225A PL series load centers - Works with Siemens Value Pack and Ultimate load centers - ANSI certified for safety and performance - UL Listed and CSA Certified for code compliance - Bolt-on design for secure, vibration-resistant connection - Plug-in mounting for fast, tool-free installation - Suitable for indoor and outdoor use - Includes breaker and mounting hardware Specifications - Brand Name: Siemens - Model Name: Siemens MBK200A - Part Number: MBK200A - UPC: 783643388017 - Product Type: Main Breaker Conversion Kit - Breaker Type: Main Breakers - Circuit Breaker Type: Bolt-On - Number of Poles: 2 - Amperage: 200 amps - Maximum Amperage: 200 - Voltage: 240 V - Phase: 1 - Mounting Type: Plug In - Certifications and Listings: UL Listed, CSA Listed - Indoor or Outdoor: Indoor and Outdoor - Circuit Protection Type: Standard - Breakers Included: Yes - Packaging Type: Boxed - Number of Items: 1 - Item Weight: 1.810 lbs - Product Height: 3.5 inches - Product Width: 4.7 inches - Product Depth: 6.3 inches - Manufacturer: Siemens AG - Country of Origin: United States Product Application The Siemens MBK200A 200 Amp main breaker conversion kit is engineered for use in upgrading main lug load centers to main breaker configurations in residential and commercial electrical systems. Commonly used during service panel retrofits, safety upgrades, or inspection-required modifications, it ensures compliance with NEC requirements for overcurrent protection. Ideal for electricians and contractors, this kit delivers a fast, reliable way to enhance panel safety and functionality in both new installations and existing buildings.