With halogen-free duroplastic construction that eliminates potential for metal-induced short circuits, fireproof enclosures can sustain flame protection up to 90 min in accordance with DIN 4102 Part 12, and offer ingress protection to IP54 or IP66. Rugged and shock-resistant boxes are available in wide range of sizes with 3-, 5-, or 8-pole terminal blocks, depending on model. All versions are self-extinguishing and can be lead sealed.