These Class 0 electrical-insulating sleeves are made of dielectric rubber to protect workers from electrical hazards up to 1000VAC. Electrical-insulating sleeves are worn with electrical-insulating gloves and should be tested for pinholes before each use. Workers should use a voltage class rating that matches the requirements set by their work site.

These Class 1 electrical-insulating sleeves are made of dielectric rubber to protect workers from electrical hazards up to 7500VAC. Electrical-insulating sleeves are worn with electrical-insulating gloves and should be tested for pinholes before each use. Workers should use a voltage class rating that matches the requirements set by their work site.

These Class 2 electrical-insulating sleeves are made of dielectric rubber to protect workers from electrical hazards up to 17,000VAC. Electrical-insulating sleeves are worn with electrical-insulating gloves and should be tested for pinholes before each use. Workers should use a voltage class rating that matches the requirements set by their work site.

These Class 3 electrical-insulating sleeves are made of dielectric rubber to protect workers from electrical hazards up to 26,500VAC. Electrical-insulating sleeves are worn with electrical-insulating gloves and should be tested for pinholes before each use. Workers should use a voltage class rating that matches the requirements set by their work site.