Data Sheet

2508
p. 4/6
Ordering chart
The delivery of a cable plug includes the flat seal and the steel fixing screw (thick-film-passivated); in the case of
stainless steel valves a cable plug with a stainless steel screw is recommended (on request).
With high power electronics Type 2508 HL
The high power electronics Type 2508HL in-
creases the output of single solenoid valves.
The high inrush power is generated by overex-
citation. The adjustable pressure can be thus
considerably extended. After switching the
valve the electronic decreases to a small hol-
ding capacity. Also thereby power absorption
and coil temperature in continuous operation
can be much reduced. In holding operation the
function is displayed by a yellow LED.
Suitable solenoid coils must be used for the
respective valve supply voltage. Please contact
your nearest Bürkert Sales Office for more
information.
Technical data Article
no.
Operating voltage Unom
12 - 24 V DC
Supply voltage acc. to IEC 364 - 4- 41 (PELV)
212510

Max. current
3 A (inrush), 0.2 A (holding operation)
Inrush power (4xP
nom
)
depending on valve
max. 72 W at 24 V
(36 W at 12 V)
Nom. holding current (1/4xP
nom
)
depending on valve
max. 4.5 W at 24 V
(2.25 W at 12 V)
Pull-in time
approx. 350 ms
Max. duty cycle ED
10/min
OFF-Time t
off
between two
switching operations
min. 1 sec.
Technical data Article
no.
Operating voltage Unom
12 - 24 V DC
Supply voltage acc. to IEC 364 - 4- 41 (PELV)
212511

Max. current
1.5 A (inrush), 0.4 A (holding operation)
Inrush power (P
nom
)
depending on valve
max. 36 W at 24 V
(18 W at 12 V)
Nom. holding current (1/4xP
nom
)
depending on valve
max. 9 W at 24 V
(4.5 W at 12 V)
Pull-in time
approx. 350 ms
Max. duty cycle ED
10/min
OFF-Time t
off
between two
switching operations
min. 1 sec.
(-)GND
(+)
With power reduction Type 2508 LR
The electronics Type 2508 LR is used for
power reduction of solenoid valves. Therewith
the power consumption and the coil tempe-
rature can be reduced considerably e.g. with
continuous operation. The inrush power con-
forms at this juncture to the nominal power of
the coil. After switching the valve the electronic
decreases to a small holding capacity.
In holding operation the function is displayed
by a yellow LED.
(-)GND
(+)