The V480LA40AP is a medium-voltage surge protector from the V Series line of components manufactured by Littelfuse. It is a Type 1, Class B surge protective device (SPD) engineered for medium-voltage power systems, up to 690VAC. The device provides an effective solution for protecting medium-voltage distribution systems, such as power transformers, capacitors, line-voltage regulators, and relays, from the devastating effects of line surges that can be caused by lightning or power quality disturbances. The V480LA40AP has a maximum current capacity of 40 KA, and a response time of less than 25ns. This device also offers long-term protection, thanks to its reliable, field-proven Thyristor technology.