Description

Eurotherm EA21 by Schneider Electric Low Torque Non-Spring Return Actuator

Eurotherm EA21 Datasheet (PDF)

Barber Colman Old Model #: EA21-00000-000-0-00

90 Degree Travel limit, 12 sec travel, 50in-lbs torque, no auxiliary switch, 120Vac/60Hz, 100 Ohm slidewire feedback

The Eurotherm EA21 output shaft moves in both directions and can stop at any point in the stroke. The hardened steel crankshaft is driven through a train of precision hobbed gears sealed in oil. This reliable actuator is driven by a shaded pole motor completely submerged in oil and sealed in an aluminum case, minimizing maintenance.

Working in conjunction with primary loop controllers, these low torque non-spring return actuators will proportionally position fuel valves, butterfly valves, dampers or other similar devices.

Four models are available featuring a standard 100ž internal feedback slidewire and a selection of travel time and rotation limit. Not available with end limit switches, some models have auxiliary switches and a variety of optional features. The EA-20 Series are UL and cUL or CSA listed, except for models with built-in transformers. CSA listed models are: EA21-00003-000-0-00, EA22-00000-000-0-00 and EA24-00000-000-0-00. It is compatible with the VB-7000- and VB-9000 valves in this catalog.

Features:

• Proportional actuators with built-in feedback potentiometer
• Open/Close contact closure input
• 240/120/24Vac models available
• 50 in-lbs torque, optional NEMA 4
• Compatible with VB series valves