The CL18528 is a 1.5m Mains Test Block with mains plug (UK) to Quicktest connector. Lid open the wires of a plugless lead are inserted into the insulated clips. When the lid is closed, current passes to the equipment being demonstrated or tested. A neon light shows that the connector is live hot and ready to use. The fuse (BS 1362) is easily accessible for replacement. The connector is made of tough, safe materials. The base is phenolic, moulded for insulation and rigidity. The lid is flame retardant glass filled thermo plastic.