5-rg white helmet ideal for working full time in places susceptible to falling objects and electrical shock up to a voltage of 1000 v ac or 1500 v dc, offering perfect and long-lasting protection. en 397 ceen 50365 c material: hdpe. head harness: automatic adjustment. electrical protection: up to 1000 v ac and 1500 v dc (bt) anchor points: 6. class: 0. 30 mm universal slot. includes anti-sweat band. 10 years' lifespan from the date of manufacture.