High Tech Systems & Equipment Inc. - Systems & Equipment 
Description
Eurotherm EA70 High Torque Actuators:
EA71, EA72, EA73, EA74, EA75, EA76
Eurotherm EA70 Datasheet (PDF)
The Eurotherm EA70 high torque actuator will position a heavy damper, globe valve, blast gate, air or gas valve. It can be used for vortex control and hydraulic coupling, and will drive a speed changing screw or slide gate requiring a torque proportional actuator.
FEATURES:
- Proportional actuators with built-in feedback potentiometer
- Open/Close contact closure input
- 120Vac and 240Vac models available
- SPDT auxiliary switch standard
- 550, 1100, 1300 in-lbs torque
- Compatible with VB series valves
Standard features include 100 ž feedback slidewire and a single SPDT switch. Weather resistant models are NEMA 4. All models, except those with tranformers, are UL/cUL listed. The EA70 is compatible with the VB-7000 and VB-9000 valves in this catalog.
TECHNICAL SPECIFICATIONS:
| Control Action: | Floating. Requires SPDT switch with floating (center off) position rated at 3 amps. |
| Proportional electric with slidewire feedback. | |
| Connections: | Coded screw terminals. |
| Shaft Rotation: | Reversible proportional can stop at any point in the stroke. |
| Auxiliary Switch: | Adjustable SPDT snap acting. Factory set to close one contact and open the other at end of clockwise rotation. |
| Ambient Temperature: | 40 to 130ÞF (-40 to 54ÞC). |
| Humidity: | 5 to 95% rh, non-condensing |
| Case: | Die cast aluminum with two 1/2″ conduit knockouts each side |
| Motor and Gear Train: | Oil immersed |
| Mounting: | Damper – upright recommended |
| Valve – upright with actuator above centerline of valve body. | |
| Dimensions: | 9-9/16″ H x 9-1/2″ W x 10-1/2″ D |
| Weight: | 30 lbs. |
| Power Consumption: | 190W |
