Introducing the DITEK D300M-480YM Replacement SPD Module, designed specifically for the D300M-277/4803Y series. This high-quality module ensures optimal performance and reliability, making it an essential component for your electrical systems. With its seamless compatibility, you can easily replace your existing SPD module without hassle. Trust DITEK for superior protection and peace of mind in your electrical installations. Don't wait—upgrade your system today with the DITEK D300M-480YM and experience enhanced safety and efficiency!