Label / identification of connections, Electrical data – Burkert Type 6650 User Manual
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6.4. Label / Identification of
connections
Example:
Made in Germany
6650 T 0,8 CC PK
24V-PWM vac-1bar
00189292
Circuit
function
Type
Voltage
Identification
number
Pressure range
Orifice [DN]
Sealing material
(CC=FFKM
FF = FKM)
Housing material
(PK=PEEK)
Identification
of the fluid
connections
6.5. Electrical data
Connections:
Type-specific plug-in connector,
see data sheet
Electrical power supply: 12 V, 24 V
Voltage tolerance:
± 10 %
Power input:
Start/activation impulse: 5.7 W
Holding power: 0.7 W
The indicated values (power consumption) describe
the heat output. When designing the power supply, pay
attention to appropriate reserves.
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6.5.1. Continuos operation with power
reduction electronics
For the continuous operation of valve type 6650, a power
reduction electronics is required. It is recommended to use
the electronics, which is available as an accessory (see
data sheet).
NOTE!
Malfunction due to overheating!
• If required, use suitable power reduction electronics.
• For a switch-on time >50 s (for single mounting >60 s)
always use a power reduction electronics!
• The electronics 670178, available as an accessory,
are suitable for a nominal voltage of 24 V only.
The following graphs provide a guideline for estimating
whether a power reduction electronics is required. If the
gap between the individual units is <10 mm, use the graph
for the block structure. A power reduction electronics is not
required if the intersection point of switch-on and switch-
off time is in the upper area of the corresponding graph.
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14
Single device
(Pulse / interval ratio at ambient temperature of 22 °C)
0
50
100
150
200
250
300
350
400
0
10
20
30
40
50
60
switch-on time [s]
switch-off time [s]
Example: 40 s on - 100 s off
→ power reduction electronics required
0
1
2
3
4
5
6
7
switch-off time [s]
0
1
2
3
4
5
0,5
1,5
2,5
3,5
4,5
switch-on time [s]
If the intersection point is on or below the plotted line or if
the duty cycle is longer than 60 seconds, power reduction
electronics are essential.
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Block structure
(Pulse / interval ratio at ambient temperature of 22 °C)
0
200
400
600
800
1000
1200
switch-off time [s]
0
10
20
30
40
50
5
15
25
35
45
switch-on time [s]
0
10
20
30
40
50
60
switch-off time [s]
0
2
4
6
8
10
1
3
5
7
9
switch-on time [s]
Example: 6 s on - 40 s off
→ power reduction electronics not required
If the intersection point is on or below the plotted line or if
the duty cycle is longer than 50 seconds, power reduction
electronics are essential.
In case the Bürkert electronics is not used, but another
power reduction electronics is implemented, the following
parameters should be applied:
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Type 6650