Magnet Wire Insulation Types

Selecting magnet wire requires an analysis of specifications and features. Insulation type is an important parameter to consider. Choices include products that use a polyvinyl formal resin, polyimide resin, or polyamide resin; polyurethane base insulation enamel; or film insulation with a modified polyester basecoat and nylon topcoat. Magnet wire may also be insulated with a polyester resin or internal lubricating film. Most products are single-coated, but double-coated magnet wire is also commonly available. Other product specifications for magnet wire include thermal class and size range. Examples include class 1 magnet wire (heavy build) and class 2 magnet wire (single build).

Thermal Class	Insulation types	NEMA Standard(MW1000)	IEC Standard	Federal Specification(Jw1177)
105℃	Plain Enamel	NONE	NONE	NONE
	Formvar	MW 15 (RD) MW 18 (SQ & RECT)	60317-1(RD) 60317-17(SQ & RECT)	JW 1177/ 14 (RD) JW1177/ 16 (SQ & RECT)
	Formvar Bondable	MW19	60317-5	JW 1177/6
130℃	Polyurethane Nylon Bondable – 130	NONE	NONE	NONE
155℃	Polyurethane – 155	MW79	60317-20	JW1177/ 41
	Polyurethane Nylon – 155	MW80	60317-21	JW1177/42
	Polyurethane Bondable – 155 Polyurethane Nylon Bondable – 155	MW131 MW 136	60317-35 NONE	NONE NONE
	Dacron Glass – 155	MW 45 (RD) MW 46 (SQ & RECT)	NONE(RD) 60317-60(SQ & RECT)	JW 1177/ 20 (RD) JW1177/ 25 (SQ & RECT)
180℃	Polyurethane – 180	MW82	60317-51	NONE
	Polyurethane Nylon – 180	MW83	60317-55	NONE
	Polyester-imide	MW30	60317-8	JW 1177/ 12
	Polyester-Nylon	MW76	60317-22	JW 1177/38
	Solderable Polyester	MW77	60317-23	JW 1177/39
	Solderable Polyester Nylon	MW78	NONE	JW 1177/ 40
	Polyurethane Bondable – 180 Polyurethane Nylon Bondable – 180	MW132 MW137	NONE NONE	NONE NONE
	Polyester-imide Bondable Polyester-amide-imide Bondable Solderable Polyester Bondable	NONE 60317-37 NONE	MW 102 60317-38 NONE	NONE 60317-36 NONE
	Dacron Glass High Temp	MW 51 (RD) MW 53 (SQ & RECT)	NONE(RD) 60317-61(SQ & RECT)	JW 1177/ 32 (RD) JW1177/ 34 (SQ & RECT)
200℃	Polyester – 200	MW74	60317-42	JW 1177/43
	Polyester A/I Topcoat	MW 35 (RD) MW 36 (SQ & RECT)	60317-13(RD) 60317-29(SQ & RECT)	JW 1177/ 14 (RD) JW1177/ 13 (SQ & RECT)
	Polyester A/I Polyamideimide	MW73	60317-13	NONE
240℃	Polyimide – ML	MW 16 (RD) MW 20 (SQ & RECT)	60317- 46(RD) 60317- 47(SQ & RECT)	JW 1177115 (RD) JW1177/ 18 (SQ & RECT)

If you want to buy the enameled wire, give me the main specifications