What type of arrestor provides protection up to 650 volts?

The secondary class arrestor is designed specifically to protect against voltage surges that occur on the secondary side of the distribution system, typically providing coverage for voltages up to 650 volts. These arrestors are essential in safeguarding residential and light commercial electrical systems from transient voltage spikes caused by events such as lightning strikes or switching operations.

Choosing the secondary class arrestor reflects an understanding of where these protective devices are most commonly utilized in electric utility systems, as they are tailored to handle the lower voltage range associated with consumer service, hence ensuring the safety and integrity of sensitive electrical equipment.