1. Frame: PBT glass fiber alloy or aluminum die-casting.
2. Impeller: PBT glass fiber alloy or metal type.
3. Bearing: ball bearing system.
4. Sleeve bearing system.
5. Motor: brushless / induction DC & AC Motor.
6. Connection: lead wire or terminal type.
7. Protection: impedance or polarity protection.
8. Operating temperature: ball bearing : - 40 ~ + 70 degrees, sleeve bearing: -20 ~ +70 degrees.
9. Insulation: above 100M Ohm, DC500V, AC1500V / 1 min.
10. Life expectancy:
(1) Ball bearing: over 40,000 HR,( at +40 degrees).
(2) Sleeve bearing: over 25,000 HR,( at +40 degrees).
11. Operating voltags:
(1) 110/220V ranged voltage from 85V TO 125V.
(2) 220/230V ranged voltage from 190V TO 245V.
12. Safety approval: UL, CUL, TUV, CE.