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Honeywell - ML7421B1023 - DCA NSR 1-1/2in Stroke 405 Lb-Ft 0-10/2- Honeywell - DCA NSR 1-1/2in Stroke 405 Lb-Ft 0-10/2-10 V Dc

 Non-spring return direct-coupled Valve Actuator with 405 lbf rated force 24 volt



Honeywell ML7421A, B non-spring return electric linear valve actuators provide an analog output of 0 to 10 Vdc or 2 to 10 Vdc.An internal selector plug can reverse the direction of action. They operate standard Honeywell valves in HVAC applications.



  • 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 separate linkage required and no adjustments required on linkage
  • High force for VGF pressure-balanced valves and accurate valve positioning
  • Low power consumption and high close-off ratings
  • Force limiting end switches and manual operation
  • Synchronous motor
  • Maintenance free


Customer Rating: Not Rated Yet
Quick Order Number: 514
Manufacturer: Honeywell
Part Number: ML7421B1023
Weight: 7.00 lbs
Stocked Item*: Yes
Quantity Available*: 0
Price: $532.86

* If an order is placed where the item is a "Non-Stocked Item" or the quantity ordered is more than the quantity available, all items in stock will be shipped and the remainder of the items will be shipped as soon as we get the "backordered" items in.


Product Specifications



Product Specifications

Dimensions (in.)
12 3/4 in. high x 7 in. wide x 7 in. deep
Dimensions (mm)
326 mm high x 178 mm wide x 178 mm deep
1/2 in. flexible conduit adapter; 1/2 in. conduit hub
Weight (lb)
5.1 lb
Weight (kg)
2.3 kg
ABS Plastic
Directly on V5011/V5013 Globe Valves and VGF Flanged Globe Valves
50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc.
Flammability Rating UL94V-5V
Approvals, Canadian Standards Association
Electrical Connections
Screw terminals
Operating Humidity Range (% RH)
5 to 95% RH
Supply Voltage
24 Vac +10%, -15%
Power Consumption
Driving-- 12 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
Ambient Temperature Range (F)
14 F to 122 F
Ambient Temperature Range (C)
-10 C to +50 C
Environmental, Electrical or Ingress Protection Rating
Class I Insulation (24 Vac),IP54
Internal Auxiliary Switch
Fluid Temperature (C)
150 C Maximum
Fluid Temperature (F)
300 F Maximum
Actuator Type
Control Signal
0 to 10 Vdc; 2 to 10 Vdc
Fail Safe Mode
Stays in place
Torque Rating (lb-in.)
405 lbf
Torque Rating (Nm)
1800 N
Stroke (in.)
1 1/2 in.
Stroke (mm)
38 mm
Two knockout holes for 1/2 in. conduit standard on actuator case
Timing, Nominal
Driving @ 60 Hz-- 175 sec
2-10 Vdc
Manual operation


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