Respirex International

Dielectric Maxi Overboots

A Class 1 (EN 50321-1:2018) electrically insulating dielectric overboot with a vulcanised rubber sole for superior slip resistance. The Respirex Maxi dielectric overboot is designed to be worn over safety boots and allows live working at up to 7.5kV with every boot tested to 10kV.

  • Ingenious rear entry design ensures the boot is quick and easy to fit and remove over conventional safety boots
  • Slip resistance performance twice that required by SATRA TM144 standards
  • Two to three times the wear resistance of conventional soles
  • Fuel and oil resistant sole
  • Resistance to hot contact 60 seconds 300ºC
  • Meets the requirements of ASTM 1117 (20kV)


  • EN ISO 20347:2012 I SRC FO Safety Footwear
  • EN 50321:2018 Class 1 AC Electrically Insulating Footwear
  • ASTM F1117 Dielectric Footwear
  • PPE DIR 89/686/EEC Personal Protective Equipment


  Medium Large Extra-Large
UK 6-8 9-11 12-14
EU 39-42 43-45 46-49
US 7-9 10-12 13-15


• Machine washable at up to 40℃
• Shelf life of over 10 years


Product Sales Sheet

Sales Sheet


Product Instructions:
Dielectric Overboots 2016 ML A5.pdf 


CE Certificate:

CE Dielectric Maxi.pdf