The IP (Ingress Protection) rating you need depends on your working environment: For indoor use in clean, dry conditions, IP44 is typically sufficient; For outdoor use with exposure to rain, IP65 is recommended as it protects against water jets from any direction; For very wet environments or areas prone to temporary flooding, IP67 provides protection against temporary immersion; For construction sites, IP65 is generally the minimum recommended rating for outdoor use. Remember that higher IP ratings usually come with a higher cost, so balance protection needs with budget considerations. Our distribution boxes are clearly labeled with their IP rating to help you make the right choice.

110V distribution is recommended for construction sites for enhanced safety. The reduced voltage significantly lowers the risk of serious electric shock in the challenging conditions typical of construction environments. UK regulations and HSE guidance specifically recommend 110V center-tapped-to-earth (CTE) systems for construction sites, where the maximum voltage to earth is only 55V. This system uses yellow plugs and sockets to distinguish them from standard 230V equipment. While 230V equipment can be used on construction sites, it requires additional safety measures like enhanced RCD protection. Most professional construction tools are designed to operate on 110V systems, making them the industry standard for site safety.

Single phase power (230V in the UK) consists of one alternating current on a single conductor, suitable for most domestic appliances and smaller equipment. Three phase power (400V in the UK) uses three conductors each carrying an alternating current with the same frequency but offset in phase by 120 degrees. Three phase offers several advantages: Higher power capacity for running larger equipment; More efficient power delivery with less conductor material; Smoother power delivery for motors, reducing vibration; Better load balancing across phases. Three phase is typically used for industrial equipment, larger power tools, and situations requiring higher power capacity. Most domestic and small commercial settings use single phase, while construction sites, factories, and large events often require three phase distribution.