Description
Spirax Sarco AEL3 is a stepper motor-controlled electric actuator with a maintenance-free gearbox. It is suitable for DN15-DN50 Spira-trol two-way valves and DN15-DN50 QL three-way valves. The actuator is supplied as standard with 24VAC/DC power and can be fitted with optional 230VAC or 100-110VAC power modules. Standard control signal options include VMD (valve motor drive), 4-20mA, and 0-10Vdc. Actuators powered by 24VAC/DC can accept a 2-10Vdc control signal when fitted with an optional signal module. Spring extension, spring retraction, and non-spring-return configurations are available.
Component Materials
| No. | Component | Material |
|---|---|---|
| 1 | Housing | Polycarbonate |
| 2 | Yoke | Stainless steel |
| 3 | Mounting flange | Stainless steel |
| 4 | Adapter | Stainless steel |
Technical Data
| Item | Specification |
|---|---|
| Supply voltage | 24VAC/DC (230VAC and 100-110VAC power modules optional) (±15%) |
| Supply frequency | 50Hz/60Hz/continuous |
| Maximum power consumption | 12W (24VAC/DC); 28VA (230VAC and 100-110VAC) |
| Stroke (maximum) | 20mm |
| Actuator speed | 0.5mm/s (factory preset), 0.25 or 0.16mm/s (selectable settings) |
| Enclosure rating | IP66 (EN60529) |
| Actuator thrust (maximum) | 2KN |
| Ambient temperature | -10°C to +55°C, <95% humidity |
| Storage temperature | -20°C~+70°C |
| Altitude | ≤2000m |
| Valve control signal | VMD, 4-20mA, 0-10Vdc, 2-10Vdc (2-10Vdc available through an optional signal module with 24VAC/DC power only) |
| Valve feedback signal | 0-10Vdc, load >2500 ohms |
| Status indication | 2 LEDs for status and alarm indication |
| Spring return cycles | >40000 cycles |
Certifications
IP66 (EN60529), Class III protection (IEC 60730), EMC Directive: 2014/30/EU, EN 61000-6-1, EN 61000-6-2, EN 61000-6-4, LV Directive: 2014/35/EU, EN 60730-1, EN 60730-2-14, overvoltage category: III, pollution degree: III
(* Items marked with * do not apply to auxiliary limit switches, signal modules, or 230VAC/100-110VAC power modules.)
Weight
| Model | Approximate weight kg |
|---|---|
| AEL3E/AEL3R | 5.7 |
| AEL3X | 4.2 |
| 180°C high-temperature assembly | 0.4 |
| 240°C high-temperature assembly | 0.7 |
Available Options
-
High-temperature assemblies: media temperatures from 130℃ to 180℃, and from 180℃ to 240℃
-
Auxiliary limit switches
-
Power modules: 230VAC or 100-110VAC
-
Signal module: 2-10Vdc control signal (for 24VAC/DC actuators only)
Product Naming Convention
| Item | Naming convention |
|---|---|
| Product type | AEL3: electric actuator |
| Action type | L: linear |
| Series | 3 |
| Failure mode | E: spring extension; R: spring retraction; X: no spring |
| Power supply | 24Vac/dc, 230Vac, 100-110Vac |
Ordering Example
1 AEL3E 24Vac/dc electric actuator + 1 AEL3 high-temperature assembly (<180℃)
Safety Information
For detailed information, refer to the product installation and maintenance guide.