DC surge protector (also known as SPD or lightning protector) I2R-T2DC-500T-LC from L-Com is a DIN-Rail style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 500 Vdc electrical service. This surge protector provides effective protection against electrical transient surges that are generated both by external lightning events and by internal switching events and supports long-term system reliability by safely shunting high amounts of transient energy while maintaining a very low clamping voltage. L-Com DC surge protectors are available in stock with same day shipping.