Surge protectors cannot be "reset." But it will auto-reset after one surge discharge event.

Under normal operation, these devices will operate indefinitely. The devices have been engineered by WPX, an "ISO9001:2008" certified industry leading manufacturer and are built to withstand multiple surge events. Our world class test facility assures maximum design efficiencies and assures maximum accuracy, quality, and dependability. WPX demonstrates its faith in these products with a 1-year product warranty for the SPD.

Built-in surge protectors often aren’t strong enough to handle larger surges and spikes and, like other smaller surge protectors, can wear out without your even knowing it, leaving you with no protection at all. Built-in protection for one piece of equipment may still leave you without protection for important equipment such as PLC, Computer, CCTV system, SCADA, telephone, answering machines, modems, printers, etc.

Clamping voltage (Voltage protection level), also referred to as let through voltage or the Voltage Protection Rating (VPR), is the amount of voltage a surge protector permits to pass through it to the attached load (ex: a TV) during a surge event. Clamping voltage is a performance measurement of a surge protector's ability to attenuate a surge, or more simply, to reduce the surge to a manageable level. For example, a surge protector might limit a 6,000V surge so that only 600V is ‘visible’ to the load. The clamping voltage is 600V. This performance value is confirmed by En61643 during tests conducted while evaluating a surge protector.

Surge current capacity is the maximum amount of surge current that a surge protector can pass for a single surge event. This level is used to indicate the protection capacity of a particular surge protector. For example, in a high exposure area with a high likelihood for lightning, a larger surge current capacity might be desired. But, be aware that surges have natural limitations and that larger surge current capacity tends to add redundancy rather than the implied ability to handle an extremely large surge. For example, an entire lightning strike cannot go through wire; much like a fire hose has difficulty shooting through a soda straw. Realistically, surge protectors do not need to be sized for entire lightning strikes. But, there are valid reasons for adding excess surge current capacity for redundancy reasons.
The surge protection industry uses kiloamperage (kA) as a measure of the products surge current capacity. All of WPX products list the kA rating for the surge capacity. kA ratings at or above 10kA (10,000 Amperes) are generally acceptable.

Any Surge Protective Device that you consider must be in accordance with En61643 standard. When comparing surge protectors it is important to consider both the surge current capacity and clamping voltage to determine the performance of the surge protector. Please reference “What is surge current capacity?” and “What is clamping voltage?”