0678106030L02 1411V002 65
Product description
5.2 Oil-free piston vacuum pumps
KV
Modular structure
The basic model consists of a pump head with
an electric motor�
The following electric motors are available:
Type A Single-phase AC motors
Type B Three-phase AC motors
Type D DC permanent-magnet
motors�
With the exception of three-phase motors, all
electric motors are fitted with an integrated tem-
perature switch for additional thermal protec-
tion� The unit shuts down automatically if the
temperature switch is triggered�
Units with a temperature switch re-start
automatically once they have cooled
down
An additional relay must be used for the
thermal cut-off on all electric motors
with a rated current greater than 10 A�
Functional description
Air is drawn in via the intake (1)� The air is drawn
into the cylinder (6) by the piston (3)� The inlet
valve (2) or the outlet valve (4) cuts off the re-
spective flow direction� The air extracted is ex-
pelled into the atmosphere via a silencer (5)�
1
5
4
3
2
6
5 Function
5.1 Oil-free piston compressors
KK
Modular structure
The basic model consists of a compressor head
with an electric motor�
The following electric motors are available:
Type A Single-phase AC motors
Type B Three-phase AC motors
Type D Permanent-magnet DC
motors
With the exception of three-phase motors, an
integrated temperature switch is integrated in
most electric motors for additional thermal pro-
tection� The unit shuts down automatically if the
temperature switch is triggered�
Units with a temperature switch start up
again automatically once they have
cooled down�
On all electric motors with rated current
greater than 10 A, the temperature
switch has passive wiring� An additional
relay must be used for the thermal cut-
off�
Functional description
The atmospheric air is induced via the air air in-
take filter (1)� This air is compressed by the pis-
ton (3) in the cylinder (6)� The inlet valve (2) or
the outlet valve (4) cuts off the respective flow
direction� The compressed air flows through the
air line (5) to the consumer�
5
4
2
6
1
3
EN
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