PRODUCT DATA
63- 2567- 3
® U.S. Registered Trademark
Copyright © 2000 Honeywell • All Rights Reserved
N314
ML4125, ML4135, ML8125, ML8135
Fast-Acting, Two-Position Actuators
FOR HEATING, VENTILATION AND
AIR-CONDITIONING APPLICATIONS
APPLICATION
The ML4125, ML4135, ML8125 and ML8135 Fast-Acting,
Two-Position Actuators are spring return direct coupled
actuators (DCA) with an integral junction box for on/off
damper control. The actuator accepts an on/off signal from
a single-pole, single-throw (spst) controller. Models are
available with clockwise (cw) or counterclockwise (ccw)
spring return and are designed for heating, ventilation, and
air-conditioning (HVAC) applications.
IMPORTANT
This actuator is not to be used in fire/smoke
applications requiring UL555/555S approval.
FEATURES
•
Integral spring return.
•
-40 to 130°F (-40 to 54°C) operating temperature range.
•
No audible noise during holding.
•
Electronic circuitry provides efficient operation while
eliminating the need for limit switches.
•
Ninety-five degree angle of rotation.
•
Die-cast aluminum housing.
•
Housing design allows flush mounting to damper.
•
Integral junction box with three conduit openings
eliminates need for separate wiring box.
•
Direct mounting to 3/8 or 1/2 in. round or square shaft.
ML4125, ML8125
•
100 lb-in. (11.3 N•m) minimum driving torque.
•
25 to 40 second drive timing (load dependant).
•
Models available for 24, 120, and 230 Vac.
ML4135, ML8135
•
40 lb-in. (4.5 N•m) minimum driving torque.
•
20 to 25 second drive timing (load dependant).
•
Models available for 24 and 120 Vac.
APPLICABLE LITERATURE
— Motor/Actuator Selection Guide
for Damper Applications
63-8419
— Engineering Manual of Automatic Control
(also called The Gray Manual)
77-1100
— Direct Coupled Actuator
Quick Selection Guide
63-8553
— Damper Torque Calculator
63-8437
Contents
Application ........................................................................
Features ...........................................................................
Specifications ...................................................................
Ordering Information ........................................................
Installation ........................................................................
Operation ..........................................................................
Checkout ..........................................................................
