4020

1. Operating ambient temperature
Ball bearing: -30 to +75℃
Sleeve bearing: -10 to +70℃

2. Insulation resistance: 
10 meg ohms min, at 500V DC (between frame and terming)
Dielectric strength: 5mA max at 500V/AC/60Hz one minute (between frame and terminal)

Peculiarity:

low noise, max air flow

Construction:

Glass fiber reinforced plastic: Impeller and housing PBT are UL 94V0 rating

Function:

Frequency generator signal option,RD signal