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Honeywell Valve Actuators ML6421A1017, ML6421A3005/U, ML6421B1040, ML6421A3005

ML6421

Honeywell ML6275 spring return direct couple rotary actuator is a floating control motor with electronically isolated feedback potentiometer to operate dampers in HVAC applications.

ML6421A1017

Direct-coupled, linear-stroke Valve Actuator with 405 lbf rated force

ML6421A3005/U

Valve Actuator

ML6421B1040

Direct-coupled, linear-stroke Valve Actuator with 405 lbf rated force

ML6421A3005

Valve Actuator

Overview

Honeywell ML6421A, B non-spring return electic linear valve actuators are used with low-voltage, single-pole, double-throw (SPDT), Series 60 two-position and floating controlling. They operatre standard Honeywell valves in HVAC applications.

Features

 

  • Quick, easy installation on valves with 1 3/8-in. bonnet and 3/4-in. stroke, or with 1 7/8-in. bonnet and 1 1/2-in. stroke
  • No required separate linkage and no adjustments required on linkage
  • High force for VGF pressure-balanced valves
  • Standard conduit connector
  • Accurate valve positioning
  • Low power consumption and high close-off ratings
  • Force limiting end switches
  • Synchronous motor

 

Product Specifications

Application
HVAC
Dimensions (in.)
10 3/8 in. high x 7 in. wide x 7 in. deep
Dimensions (mm)
264 mm high x 178 mm wide x 178 mm deep
Includes
1/2 in. conduit hub; 1/2 in. flexible conduit adapter
Weight (lb)
5.1 lb
Weight (kg)
2.3 kg
Materials
ABS Plastic
Mounting
Directly on V5011/V5013 Globe Valves and VGF Flanged Globe Valves
Frequency
50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc.
Flammability Rating UL94V-5V
Approvals, Canadian Standards Association
Certified
Electrical Connections
Screw terminals
Operating Humidity Range (% RH)
5 to 95% RH
Supply Voltage
24 Vac +10%, -30%
Power Consumption
Driving-- 11 VA
Shipping and Storage Temperature Range (F)
-40 F to +158 F
Shipping and Storage Temperature Range (C)
-40 C to +70 C
Approvals, CE
Recognized
Ambient Temperature Range (F)
14 F to 122 F
Ambient Temperature Range (C)
-10 C to +50 C
Environmental, Electrical or Ingress Protection Rating
IP54,Class I Insulation (24 Vac)
Internal Auxiliary Switch
0
Fluid Temperature (C)
150 C Maximum
Fluid Temperature (F)
300 F Maximum
Actuator Type
Valve
Control Signal
SPDT; Two position; Floating
Fail Safe Mode
Stays in place
Torque Rating (lb-in.)
405 lbf
Torque Rating (Nm)
1800 N
Switches
Yes
Stroke (in.)
3/4 in.
Stroke (mm)
20 mm
Cable
Two knockout holes for 1/2 in. conduit standard on actuator case
Timing, Nominal
Driving @ 60 Hz-- 95 sec
Manual operation
Knob

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