Frame/Housing: - Aluminum die-casting
Impeller: - Plastic or steel
Bearing System: - Ball bearing
Motor: - Brushless DC motor
Protection: - Electronically-Protected
Insulation Resistance: - Above 10MΩ, DC500V
Dielectric withstand voltage: - AC 1,500V (50/60Hz) one minute
Life Expectancy: - Ball bearing: Over 50,000 hr. (at 40℃)
Safety Approval: - CE .