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3. Specifications
Frequency
Designed capacity *1
Recommended
Continuous
operative
Maximum
vacuum
Diameter of piping connection
Motor
Setting for thermal protection
*4
Mass
Painting color
Installation condition
(Suction air)
Operation noise *5
*1 Designed Pumping Capacity: Theoretical value calculated from volume. Refer to Performance
Data for actual flow rate.
*2 Recommended range: Vacuum/pressure range the pump can exert its optimal performance (life,
operation noise, etc.). In case high degree of vacuum/pressure is not required, operate at
recommended range.
*3 Maximum value: The maximum degree of vacuum/pressure pump can continuously run. Do not
operate pump continuously over this limit. Doing so will shorten pump life and can lead to
premature failure or accidents.
*4 Setting for thermal protection is only as a guide regardless of variations of product performance.
*5 Operating noise level is only an actually measured value under continuous operational vacuum
and continuous operational pressure, and not guaranteed.
Model
range *2
value *3
Phase / output/ pole
Frame no. / heat
resisting class
Frequency / Rated
voltage – current
Installation site
Permissible ambient
temperature deg.C
Permissible ambient
humidity %RH
Hz
L/min
kPa
kPa
A
Kg
Corrosive or explosive gas must not exist
in ambient atmosphere.
Conditions
Clean air with less dirt and dust, free of
vapor and dew condensation.
dB
−4−
Spec. No. KRF08A-B-04E
KRF08A-B-04
50
135
60 or less
70
Rc3/4
Three-phase / 0.2kW / 4P
63M / E
50Hz / 380V – 0.62A
400V – 0.64A
415V – 0.65A
60Hz / 400V – 0.55A
440V – 0.57A
460V – 0.58A
50Hz / 380V – 0.68A
400V – 0.70A
415V – 0.72A
60Hz / 400V – 0.61A
440V – 0.63A
460V – 0.64A
14
Black (except motor)
Indoor
0 to 40
65 ± 20 (JIS Z8703)
64
60
155
67
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