Respirex International

Dielectric HV3+ Boots

A Class 3 AC (EN 50321-1:2018) electrically insulating dielectric boot with an integral steel toe cap. The Workmaster™ Dielectric HV3+ boot allows high voltage live working at up to 26.5kV with every boot tested at 30kV.

  • Lightweight design for increased wearer comfort
  • Low temperature flexibility down to -40ºC
  • Durable, slip resistant vulcanised rubber for maximum grip
  • Energy absorbing tunnel system in heel and ergonomic cushioning insole (removable and machine washable) for greater wearer comfort
  • Cold insulation to EN ISO 20345
  • High-visibility green HV3 compound shaft
  • Meets the requirements of ASTM 1117 (20kV)
  • Also available in a moulded sole version (without fuel & oil resistance, resistance to hot contact or cold insulation for the sole and SRA slip)


  • Safety Footwear EN ISO 20345:2011 - SB HRO FO E CI SRC
  • Electrically Insulating Footwear EN 50321-1:2018 Class 3 AC  
  • Personal Protective Equipment PPE Regulation (EU) 2016/425
  • Conforms to ASTM F1117

Product Sales Sheet:

Sales Sheet


Product Instructions:

User Instructions


CE Certificate:

CE Certificate