Danfoss ABNM A5 Data sheet
Data Sheet
Actuator ABNM A5
0-10 V Proportional
For Use with RA2000 Valves
Application
The ABNM A5 0-10V thermal actuator is designed
for use with RA2000 Thermostatic Radiator Valves
in heating and cooling applications.
Features include:
• Safety function of normally closed (NC) actuator
during power failure
• Low power consumption 1W
• Removalable plug-in cable
• Simple snap-on installation
• Actuator orintation in any installation position
• First-Open function (NC versions)
• Compact size, small dimensions
• 24V AC power source
• Position indicator
• Noiseless and maintenance-free
Control is done by a 0-10 V signal, which is
provided either by a 3rd party room thermostat
or, in most cases, by a central direct digital
control (DDC) system. The actuator converts the
0-10 VDC signal into a proportional actuator
travel to the RA2000 or RA-C series of valves.
Suitable applications for the ABNM A5 actuator
can include fan coil units, chilled ceiling applications, radiant oor heating or radiator valves. It is
not recommended that the ABNM A5 actuator be
used on low pressure steam applications due to
the increased temperature environment that the
actuator is exposed to.
Ordering
Spare Parts
Typ e
ABNM A5,
for RA2000
Mounting base adapter VA78
Cables Code no.
3 feet (1 meter) 082F1081
16 feet (5 meters) 082F1082
32 feet (10 meters) 082F1083
Supply
voltage
24 V AC 4 mm NC 0 - 10 VDC 082F1111
Stem
Travel
Description Code no.
Position during
power loss
Input
Signal
Code no.
VDSKA422 © Danfoss 03/2016
1
Data Sheet Actuator ABNM A5 for RA2000 Valves, 0-10 V Proportional
Function
Technical Specications
The actuator mechanism of the ABNM actuator
uses a positive temperature coecient (PTC)
resistor heated wax element and a compression
spring.
The wax element is heated by applying the
operating voltage and moves the integrated
piston. The force generated by this movement is
transferred to valve spindle and thus opening or
Version NC “normally closed”
In case of the normally closed version, valve is
closed when de-energized. Valve is opened
steadily upon switching on the power supply, setting control signal to 10 V and after expiry of the
dead time.
closing the valve. The actuator provides active
regulation in a dened range (see characteristic
curve between 0.5 V and 9.5 V).
The function display (all-round display) of the
ABNM shows at the rst glance whether the valve
Power
ON
is “open” or “closed”.
First open function
In its delivery condition ABNM is partly open due
to the rst open function (lling). This enables
Function display for NC versions extends
proportionally with actuator opening from 0 mm
to 5-6 mm.
heating/cooling operation during the construc-
tion phase even when the electric wiring is not
yet complete. During the later electrical start-up,
the rst open function is unlocked by applying
the power supply for more than 6 minutes.
Operating voltage
24 V AC 50/60 Hz
(-10% to +20%)
Max. inrush current < 300 mA for max. 2 min.
Operating power 1 W
1)
Control voltage 0-10 V DC
Input resistance 100 kΩ
Actuator travel 4 mm
Actuating linear force 100 N ± 5%
Closing (NC) or opening (NO) time when de-energized 3-5 min.
Travel speed 30 s/mm
Calibration time (including First Open for NC) > 6min.
2)
2)
Delay when energizded (heat up time) 2-3 min.
Fluid temperature 32 to 212°F (0 to 100° C)
2)
Storage temperature -13 to 149°F (-25 to 65°C)
Ambient temperature 32 to 140°F (0 to 60° C)
Suitable applications Hot or chilled water
3)
Degree/class of protection NEMA 3 (IP54
/III safety extra-Iow voltage)
Connecting cable 3 x 0.22 mm², halogen free
Mounting Adapter (included) VA 78
Weight 0.24 lb (111 g)
Housing material Polyamid / white
1)
Measured with precision power meter LMG95.
2)
Measured at ambient temperature 68°F (20°C). Due to thermal working principle of ac tuator some parameters vary
with ambient temperature. At higher ambient temperatures actuator opening is faster and closing slower. At lower
ambient temperatures actuator closing will be faster and opening slower.
2
VDSKA422 © Danfoss 03/2016
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