Wire specifications and cross reference

*Disclaimer IWM does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed below.

Identifying the correct grade of wire for an application can be a difficult process due to the number of different standards and definitions that can be applied.

The table below aims to assist engineers in simplifying this process.

Specification	Part	Sheet	Description	NEMA	Previous BS
IEC 60317	0	1	General requirements - Enamelled round copper wire
IEC 60317	0	2	General requirements - Enamelled rectangular copper wire
IEC 60317	0	3	General requirements - Enamelled round aluminium wire
IEC 60317	0	4	General requirements - Glass-fibre wound resin or varnish impregnated, bare or enamelled rectangular copper wire
IEC 60317	0	5	General requirements - Glass-fibre braided resin or varnish impregnated, bare or enamelled rectangular copper wire
IEC 60317	0	6	General requirements - Glass-fibre wound resin or varnish impregnated, bare or enamelled round copper wire
IEC 60317	1		Polyvinyl acetal enamelled round copper wire, class 105		BS6811	3..5
IEC 60317	2		Solderable polyurethane enamelled round copper wire, class 130, with a bonding layer	MW 29-C	BS6811	3..4
IEC 60317	3		Polyester enamelled round copper wires, class 155
IEC 60317	4		Solderable polyurethane enamelled round copper wire, class 130	MW 75-C	BS6811	3..1
IEC 60317	7		Polyimide enamelled round copper wire, class 220	MW 16-C	BS6811	3..8
IEC 60317	8		Polyesterimide enamelled round copper wire, class 180		BS6811	3..2
IEC 60317	10		Enamelled round copper wires with a temperature index of 180 for use in refrigerant systems
IEC 60317	11		Bunched solderable polyurethane enamelled round copper wires, class 130, with silk covering		BS6811	3..6
IEC 60317	12		Polyvinyl acetal enamelled round copper wire, class 120		BS6811	3..7
IEC 60317	13		Polyester or polyesterimide overcoated with polyamide-imide enamelled round copper wire, class 200	MW 35- C/A	BS6811	3..3
IEC 60317	14		Polyvinyl acetal enamelled round aluminium wire, class 105		BS6811	5..1
IEC 60317	15		Polyesterimide enamelled round aluminium wire, class 180		BS6811	5..2
IEC 60317	16		Polyester enamelled rectangular copper wire, class 155		BS6811	4..4
IEC 60317	17		Polyvinyl acetal enamelled rectangular copper wire, class 105		BS6811	4..5
IEC 60317	18		Specifications for particular types of winding wires. Part 18: Polyvinyl acetal enamelled rectangular copper wire, class 120		BS6811	4..6
IEC 60317	19		Solderable polyurethane enamelled round copper wire, overcoated with polyamide, class 130	MW 28-C
IEC 60317	20		Solderable polyurethane enamelled round copper wire, class 155	MW 79-C	BS6811	3..9
IEC 60317	21		Solderable polyurethane enamelled round copper wire overcoated with polyamide, class 155	MW 80-C
IEC 60317	22		Polyester or polyesterimide enamelled round copper wire overcoated with polyamide, class 180	MW 76-C/A	BS6811	3..10
IEC 60317	23		Solderable polyesterimide enamelled round copper wire, class 180	MW 77-C	BS6811	3..11
IEC 60317	24		Polyester or polyesterimide enamelled round aluminium wire overcoated with polyamide, class 180
IEC 60317	25		Polyester or polyesterimide overcoated with polyamide-imide enamelled round aluminium wire, class 200	MW 35-A	BS6811	5..3
IEC 60317	26		Polyamide-imide enamelled round copper wire, class 200	MW 16-C	BS6811	3..12
IEC 60317	27		Paper tape covered rectangular copper wire	MW 33-C	BS6811	8..1
IEC 60317	28		Polyesterimide enamelled rectangular copper wire, class 180
IEC 60317	29		Polyester or polyesterimide overcoated with polyamide-imide enamelled rectangular copper wire, class 200	MW 36-C
IEC 60317	30		Polyimide enamelled rectangular copper wire, class 220	MW 20-C	BS6811	4..7
IEC 60317	31		Glass-fibre wound resin or varnish impregnated, bare or enamelled rectangular copper wire, temperature index 180		BS6811	6..1
IEC 60317	32		Glass-fibre wound, resin or varnish impregnated, bare or enamelled rectangular copper wire, temperature index 155		BS6811	6..2
IEC 60317	33		Glass-fibre wound resin or varnish impregnated, bare or enamelled rectangular copper wire, temperature index 200		BS6811	6..3
IEC 60317	34		Polyester enamelled round copper wire, class 130L
IEC 60317	35		Solderable polyurethane enamelled round copper wire, class 155, with a bonding layer		BS6811	3..13
IEC 60317	36		Solderable polyesterimide enamelled round copper wire, class 180, with a bonding layer	MW 1000	BS6811	3..14
IEC 60317	37		Polyesterimide enamelled round copper wire, class 180, with a bonding layer		BS6811	3..15
IEC 60317	38		Polyester or polyesterimide overcoated with polyamide-imide enamelled round copper wire, class 200, with a bonding layer	MW 102-C	BS6811	3..16
IEC 60317	39		Glass-fibre braided resin or varnish impregnated, bare or enamelled rectangular copper wire, temperature index 180		BS6811	7..1
IEC 60317	40		Glass-fibre braided resin or varnish impregnated, bare or enamelled rectangular copper wire, temperature index 200	MW 43-C	BS6811	7..2
IEC 60317	41		Solderable polyester enamelled round copper wire, class 130L
IEC 60317	42		Polyester-amide-imide enamelled round copper wire, class 200
IEC 60317	43		Aromatic polyimide tape wrapped round copper wire, class 240
IEC 60317	44		Aromatic polyimide tape wrapped rectangular copper wire, class 240
IEC 60317	45		Polyester enamelled round copper wire, class 130
IEC 60317	46		Aromatic polyimide enamelled round copper wires, class 240	MW16/20
IEC 60317	47		Aromatic polyimide enamelled rectangular copper wire, class 240
IEC 60317	48		Glass-fibre wound resin or varnish impregnated, bare or enamelled round copper wire, temperature index 155
IEC 60317	49		Glass-fibre wound resin or varnish impregnated, bare or enamelled round copper wire, temperature index 180
IEC 60317	50		Glass-fibre wound resin or varnish impregnated, bare or enamelled round copper wire, temperature index 200
IEC 60317	51		Solderable polyurethane enamelled round copper wire, class 180	MW-82C
IEC 60317	52		Aromatic polyamide (aramid) tape wrapped round copper wire, temperature index 220
IEC 60317	53		Aromatic polyamide (aramid) tape wrapped rectangular copper wire, temperature index 220
IEC 60317	54		Polyester enamelled round copper wire, class 155L