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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