The SP Box-Type series of surge protectors functions
at 50/60hz and 230V/380V, protecting the circuit against surge voltages.
Box-type surge protectors come with the fuse, power supply and earthing cables already configured, 
thus ensuring an easy installation and increased stability,
while an important advantage of this type of device is the short response time <5ns.
When the device indicator is green, system protection is normal.
If the monitor turns red, surge protection has functioned
and there has been a surge voltage event.

• Pulse: 8/20μs
• Optimal operating temperature: -40~70^oC
• Response time: <5ns