Ecsbpk02 Mechanical Interlock Kit Between The Main Breaker Powered By Utility Product Details ?Compatible Models?Generator Interlock Kit Compatible with Siemens and Murray panels between the main breaker powered by utility power and generator powered by standby power. ?Interlock Breaker Types?QP to QP or QP to QPP(Simens) and MP-T to MP-T or MP-T to MPP-T(Murray). ?Easy to Install?Just install the plate on the main breaker to ensure it is OFF when generator breaker is ON. Easy to install, no need extra control box or wiring. ?Safety Generator Interlock kit?This kit avoids the inconveniences that an unexpected power outage can cause. It is used to direct generator power to any circuit within your home safely. It is truly a great way to safely connect up a generator while assuring that you have access to all of your home electrical appliances. ?Package Contents?Our Generator Interlock kit include 1 Interlock plate, 1 Instruction Bulletin, 1Compatible Model Lists, 1Caution Reminder Sticker. No need to buy a separate transfer switch. The generator lockout kit installs and works on your existing breaker panel, saving your money and time. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.