... 4,5 Speed Piano switch,keyboard switch for Fan and bender, Juicer,Mixer,etc, Appliances Specifications 1)Contact Resistance ≤20mΩ 2 ... )Insulation Resistance ≥100MΩ ,at 500 VDC 3)Dielectric Strength 1000VAC/ 1minute 4)Electrical Life ... the electromotional instruments field etc. Household appliances 2,3,4,5 Speed Piano switch,keyboard switch for Fan ...