Mersen Select-A-Fuse

Arc Flash Calculator

The calculator is based on 3-phase tests at 600V with an electrode gap of 32mm in a 20"x20"x20" box, as described in the IEEE 1584 standard.

It is intended to help determine the PPE level for protection against the effects of radiated heat, and does not take account of the effects of pressure blast, sight or hearing damage, molten metal, shrapnel, toxic smoke, or plasma jets.

Actual arc flash severity could be different from the results given here.

PPE Calculator

Calculate the incident energy density at a given distance

Flash Boundary Distance

(i.e. for which E = 1.2 cal/cm2)