Zexum 2.5mm 5 Core Black Cable Flexible 3185Y 20 Amp Blue, Brown, Black, Grey & Earth H05VV-F Flexible Circular Wire for Indoor & Outdoor uses up to 500V such as Electric Motors, Heating & Cooling Controls, Central Heating Pumps, Low Voltage Lighting & Switching. A quality, well constructed product which is easily stripped and worked with. 2.5mm² copper conductor size, External diameter 12.5mm (Should be used with 12mm Round Black Clips) 5 Core cable with Blue, Brown, Black, Grey and Earth (Green/Yellow) coloured cores as indicators Plain annealed high quality stranded copper conductor with double insulated PVC protector sheath. Suitable for extra low (such as CCTV Supply) and low voltages up to a maximum of 500v. Suitable for Temperatures between -5°C and +60°C BASEC Approved and Certified to BS6500, CENELEC HD21.5, VDE 281 and BS EN 60228:2005 (previously BS6360) General purpose light duty flexible PVC cable suitable for use in dry domestic,