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Electric actuator AT 3910 (45-150 Nm)

Electric actuator for On/Off, positioning or modulating of ball valves, butterfly valves or where a 90° rotation is needed.

Torque45 Nm to 150 Nm
DriveElectric

Variations

Article number Performance Torque (Nm) Amount
AT 3910-4 Electric modulating, Electric on/off 45
AT 3910-6 Electric modulating, Electric on/off 60
AT 3910-10 Electric modulating, Electric on/off 100
AT 3910-15 Electric modulating, Electric on/off 150
AT 3910-6X Electric ATEX classified 60
AT 3910-10X Electric ATEX classified 100
AT 3910-15X Electric ATEX classified 150

Product information

Range of application

Weather-proof actuator for On/Off, positioning or modulating manuvering for ball- and butterfly valves. Torque from 45-150 Nm.

AMA-text

UEC.11 Actuator for valve, electric, two-position without spring return
Actuator Bernard Electrical AT 3910 for 90° maneuvering of ball valves, butterfly and where a 90° rotation is needed.

The actuator is manufactured according to desired properties, contact Armatec for more information.

Quality assurance

CE marked


EC directives 2004/108/EC, 2006/95/EC, following the standards of EN 61000-6-4, EN 61000-6-2, EN 60034-1 och EN 60529.


IP 67 rated

Material specification

DetailMaterialSurface treatment
1BodyAluminumZinc primer, epoxylayer and RAL 5002 blue polyurethane top coat
2CoverAluminumZinc primer, epoxylayer and RAL 5002 blue polyurethane top coat
3Drive shaftMassive steelUntreated

Dimension and weight

Actuator / Fig nrDrive shaft*ABCDEFGHWeight
3910-4Depending on valve273200225116737440956
3910-6Depending on valve319200225116737440957
3910-10Depending on valve319/362200225116737440957
3910-15Depending on valve362200225116737440957
Dimension in mm, weight in kg. *Possible to get in requested size, parallel, keyway or a 45° rotation.Dimension in mm, weight in kg. *Possible to get in requested size, parallel, keyway or a 45° rotation.

Dimension and weight

Actuator / Fig. noDrive shaft*ABCDEFGHWeight
3910-6XDepending on valve454200225116737425957
3910-10XDepending on valve454/497200225116737425957
3910-15XDepending on valve497200225116737440957
Dimension in mm, weight in kg. *Possible to get in requested size, parallel, keyway or a 45° rotation.Dimension in mm, weight in kg. *Possible to get in requested sizes, parallel,

Dimension and weight

Actuator / Fig. noDrive shaft*ABCDEFWeight
3910-6-6A3PDepending on valve319389305116737414
3910-15-8A3PDepending on valve362389305116737414
Possible to get in requested size, parallel, keyway or a 45° rotation.Dimension in mm, weight in kg. *Possible to get in different sizes

Function and design

Standard version

Reversible actuator in four different sizes for 90° movement, adjustable through a combination of cams, mechanical end stop and/or torque switches.


The actuator is a compact combination of an electric motor with thermal protection and a self-locking worm gear. As standard with a hand wheel and position indicator.

The actuator mounting dimensions in relation to the fittings are according to ISO 5211.

Vibrations resistant to 1 g, (9.8 m / s2) at 10-500 Hz.


Design lifetime 20 000 cycles for On/Off or 300 000 starts for positioning. Tested according to EN 15714-2 class A and B

Standard performance

Standard performance
Motor dutyS4-30% ED, 360 starter/h max. S4-50% for modulating class III S4-100% for continues modulating
EnclosuresIP67, IP 68 optional, EX classified as optional
Temperature-20°C to +60°C
Anti condensation heaterIncluded as standard
Thermal overload protectionThermostat

Permanently lubricated gear

Yes
Cable entriesDepending on actuator model
End travel switches4 as standard
Torque switchesNo
Terminal block8 connections

Technical data

Actuator 3910 on/off

Torque NmOperating time (50 Hz) sISO-connection230 V AC 50 Hz Ampere400 V AC 50 Hz Ampere24 V DC24 VAC
StopStopStartStopkWStartStopkWOperating timeOperating time
445456*F05/070,90,80,03----6
660606*F05/070,90,60,030,50,30,0366
101001006, 35, 60F05/071,71,20,061,10,60,103535
1515015015, 25F05/070,90,60,030,50,30,031515
*Other times on request

Accessories and options

Standard version, see above.

Possible options and variants

Actuator Intelli+, see seperate datasheets for possible features, such as summer alarm, bus-control, travel-time control etc.

Power supply 3-phase

380/415 V - 50Hz, 440/460 V - 60 Hz

230 V - 50 Hz, 220/230 V - 60 Hz

500 V - 50 Hz eller 5775 V - 60 Hz


1-Phase


110, 115, 120, 220 V - 50 Hz

115 V-60 Hz

24V - 50 Hz

DC

24, 48, 110 or 220 VDC

For other time periods, contact Armatec

For off-shore painted actuators, contact Armatec

For ATEX-rated actuators, contact Armatec

Installation

During all work with the actuator the power MUST be disconnected.
- The actuator must be connected as per the wiring diagram, see the manual.
- Each actuator must be powered by an individual switch or relay contact, minimum 16A, to prevent cross-feed between the actuators.
- At outdoor installation, the actuator should preferably be protected by a roof or cap.
- Installation with the motor downwards should be avoided.
- Turn the valve with the control unit's hand wheel to centre position. See indication on top of the device.
- Always connect the heater.
- Check that the actuator turns the valve in the desired direction.
- The correct limit switch (open or closed) shall break the motor current.
- Cable entries must comply at least to the lowest protection class of devices.

See the manual for start-up, storage and maintenance.

Marking

Article number, manufacturer, serial number, voltage and current.
Wiring diagram is placed by the motor at delivery.

Options for control

Control signal230 V, 50 Hz3-phase 400 V, 50 Hz24 V
4-20 mA or 0-10 VMinigam, Integral, PosigamIntelli, Integral, PosigamIntelli, Integral, Posigam
Profibus DPIntelli, Integral, PosigamIntelli, Integral, PosigamIntelli, Integral, Posigam

How to order

Example: 3910-4-3A3A
AT3900-4*3**A***3****A*****
Fig. noSizeOperating timeConnectionVoltageOptions
* 4, 6, 10 or 15 depending on needed torque
** =Time: 3s, 2=5s, 3=6s, 4=10s, 5=15s, 6=20s, 7=25s, 8=30s, 9=35s, 10=45s, 11=50s, 12=60s
*** A=F05/07
**** 0=24 VDC, 1=24 VAC, 3=230 VAC, 4=400 VAC
***** A=On/Off, B=Integral, C=Posigam, D=Minigam, E=1000 ohm POT, P=Intelli+