Junction boxes with flanges. Structure: 10/10 thick sheet steel, painted textured RAL 7035. Door: Painted textured RAL 7035, provided with a seal applied by continuous moulding. Mechanical resistance degree as per IEC EN 62208: IK10. Box with flanges IP 55 complies with NEMA 12. 2+2 flanges on 600 side (N1+1) on 400 side.