【200A MAIN BREAKER KIT】Rated for 200 Amp, 120/240V AC applications with a 2-pole configuration. Designed as a replacement main breaker conversion kit for approved single-phase load center installations. 【VERIFY PANEL COMPATIBILITY】Compatible with select Siemens Type EQIII load centers that specify MBK200 or EQ9685 on the panel label. Check the load center label, wiring diagram and original part number before ordering. 【MAIN LUG CONVERSION】Designed to convert an approved main-lug load center into a main-breaker configuration, providing a centralized disconnect and circuit protection point when properly installed. 【COMPLETE KIT COMPONENTS】Includes one main breaker assembly, two connector straps with mounting bolts and two lug stabs. Compare the included components and connection layout with the original unit before installation. 【PROFESSIONAL INSTALLATION】Electrical panel work involves hazardous voltage. Installation 【Satisfaction Guarantee】We are dedicated to delivering professional and heartfelt service to enhance your shopping experience. If you're not completely satisfied with your purchase, simply return it within 30 days. Additionally, we offer a 12-month warranty for your peace of mind.should be completed by a qualified electrician with all power disconnected and in accordance with panel instructions and local electrical codes. The Zymurgoes MBK200 Main Breaker Conversion Kit is designed for select Siemens Type EQIII load centers that specify MBK200 or EQ9685 on the panel label. The 200 Amp, 2-pole kit is intended for 120/240V AC single-phase applications and can be used to convert an approved main-lug load center into a main-breaker configuration. The package includes the main breaker assembly, two connector straps with bolts and two lug stabs. Because load center configurations vary, buyers should verify the panel label, wiring diagram, original part number and connection layout before purchasing. Professional installation by a qualified electrician is recommended.