Wago Lever-Nuts are UL certified 600 V, (traditional wire nuts are not). Lever-Nuts can be used in many applications where wire nuts cannot; even in shipbuilding and other hostile environment applications!
221 Series LEVER-NUTS® for Ex splicing connectors obtain AEx (class 1, zone 1) rating when used in conjunction with the mounting carrier, which can either be clamped onto a DIN rail or screwed tightly to any smooth surface.