The MARS MRSN SPD 3PH 480/277V Y is an essential surge protective device for three-phase electrical systems. Designed to operate at 480/277V, it provides superior protection against voltage spikes, ensuring the safety and efficiency of your electrical infrastructure. This model is constructed from high-quality materials and adheres to ANSI/UL standards, making it suitable for a wide range of applications. Its compact design facilitates easy installation, and it offers various connection options for flexibility. Invest in this surge protector to enhance the reliability of your electrical systems and prevent potential damage.