Product Info

Actuator
Technical Data
Technical changes reserved. 8-D58-40-354 Rev. 1.4, Reprint, in whole or in part, is only admissible with our approval.
Technical Information
OEM-Actuator
Type A 4024 / A 4124
1) in dependence of the adapter even higher
2) in all installation positions
3) referring to standard valves
Planning and Installation Notes
Characteristic Curves
Normally Closed (NC)
max
4
3
2
1
0
Valve Adaptation
Recommended Installation Positions
Valve adaptation is archived by a valve adapter which is available in
different versions to suit the most common valve bottoms and heating
circuit distributors (please consider when ordering).
Prefered installation positions of the OEM-Acutator are vertical and
horizontal. An up-side down position may reduce product life through
special circumstances (e.g. contaminated water).
Normally Open (NO)
max
4
3
2
1
0
Calculation of maximum cable length (copper cable) for 24 V rated voltage
L = K
x
A / n
A Conductor cross-section in mm²
n Number of Actuators
K Constant (269 m/mm
2
)
L Cable length in m
We recommend the following cables for installing a 24 V system:
Bell wire: Y(R) 0,6 mm
2
Light plastic-sheathed cable: NYM 1,5 mm
2
Flat webbed building wire: NYIF 1,5 mm
2
Transformer:
A safey isolating transformer according to EN 60335 must always be used.
Transformer dimensioning results from the making capacity of the OEM-
Actuators.
Rule-of-thumb formula:P
Transformer
= 6 W x n
n = number of OEM-Actuators
Version normally closed / normally open
Voltage 24 V AC/DC, +20%...10%, 060 Hz
Max. inrush current 250 mA during 2 min. max.
Operating current 75 mA
Operating power 1.8 W
Closing and opening times approx. 3 min.
Actuator travel 4 mm
Actuating force 100 N ± 5%
Micro-Switch 24 V AC: 3 A ohm resistive load, 1 A inductive load
Switching point approx. 2 mm
Fluid temperature 10 - 100 °C
1)
Storage temperature -25 to +60°C
Ambient temperature 0 to +60°C
Degree IP 54
2)
CE conformity according to EN 60730
Housing / housing colour Polyamide / grey
Weight 155 g with a 1 m connecting cable
Connecting cable / length 4 x 0.75 mm² PVC, grey / 1 m
on
off
voltage on
time
make
break
stroke [mm]
voltage
time
dead
time
hold time
switchingpoint end switch
on
off
voltage on
time
make
break
stroke [mm]
voltage
time
dead
time
hold time
switchingpoint end switch
OEM-Actuator
A 4024 / A 4124
with end-switch
24 V AC
L1 L2
24 V max.
3 A ohm resistive load
1 A inductive load
Pump etc.
Thermostat
R 40..
brown black
blue black
Connections Overview
OEM-Actuator with valve adapter
+4 mm
56 mm
54 mm
3)
44 mm