N345/19 Insulated Connector Box Double Pole is mainly used to split the mains meter tails coming into a property. This type is a Double Pole Service Connector Box, also known as a Henley block, has 2 brass terminal blocks each with 5 terminal entries that will take up to 35mm² cable. Engineered for demanding electrical setups, it accommodates thick sub-main wiring with a high terminal capacity for up to 35mm² cables across a multi-port (2 x 5-Way) Secure sealable Lid