Forgot password?

Total: $0.00

Quick Order # Quantity

Home >> Products

Honeywell - ML6174B2019 - DCA Fltg/2Pos 24V 90S 70Lbin Direct Coup Honeywell - DCA Fltg/2Pos 24V 90S 70Lbin Direct Coupled Actuator

 SPDT floating actuator with 70 lb-in and non-spring return



Used to control dampers in applications such as variable air volume (VAV) terminal units and for mounting on ball valves; suitable for use with SPDT or floating thermostats or building automation controls.



  • Control for air damper applications with up to 20 sq.ft. assuming 3.5 in-lb per sq.ft. of damper area, velocity independent
  • Magnetic coupling eliminates the need for mechanical stops or limit switch adjustments by limiting stall torque to 130 lb-in. maximum
  • Mount directly on 3/8 to 1/2 in. round and square damper shafts
  • All models include manual declutch lever for ease of mounting, and bag assembly with two minimum position setscrews. 90 second timing models are suitable for use with pressure independent VAV systems
  • Selectable 45, 60, and 90 degree stroke in either clockwise or counterclockwise direction.


Customer Rating: Not Rated Yet
Quick Order Number: 509
Manufacturer: Honeywell
Part Number: ML6174B2019/U
Weight: 4.60 lbs
Stocked Item*: Yes
Quantity Available*: 0
Price: $147.88

* 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.)
5.55 in high x 3.39 in wide x 2.52 in deep
Dimensions (mm)
141 mm high x 86 mm wide x 64 mm deep
4074ENY Bag Assembly
Weight (lb)
1.5 lb
Weight (kg)
0.68 kg
Steel plate and Plenum rated plastic
Direct Coupled
50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc.
UL873, Plenum Rated
Tradeline Value
Electrical Connections
Screw terminals
Operating Humidity Range (% RH)
5 to 95% RH, non-condensing
Supply Voltage
24 Vac ±20%
Power Consumption
Driving-- 2.4 VA
Shipping and Storage Temperature Range (F)
20 F to 130 F
Shipping and Storage Temperature Range (C)
-18 C to +54 C
Approvals, Canadian Underwriters Laboratories Inc.
cUL C22.2 No. 24-93
Ambient Temperature Range (F)
20 F to 125 F
Ambient Temperature Range (C)
-18 C to +50 C
Environmental, Electrical or Ingress Protection Rating
Internal Auxiliary Switch
Maximum Noise Rating
Driving (dB(A) @ 1m)-- 45
90 degrees
Shaft Dimensions (in.)
3/8 to 1/2 in. square or round
Actuator Type
Control Signal
Floating; SPDT; On/Off
Fail Safe Mode
Non-Spring Return
Torque Rating (lb-in.)
70 lb-in.
Torque Rating (Nm)
8 Nm
Additional Torque Ratings (lb-in.)
Maximum Stall-- 130 lb-in.
Additional Torque Ratings (Nm)
Maximum Stall-- 15 Nm
External Auxiliary Switches Available
Yes, 201052B
Rotation to Open
By wiring
Rotational Stroke Adjustment
Mechanically limited at 45 or 60 degrees in CW or CCW directions
Timing, Nominal
Driving @ 60 Hz-- 90 sec
Shaft Adapter Type
Aluminum Hub, two set screws
Manual operation
Declutch mechanism
Shaft Dimensions (mm)
10 to 13 mm square/round


Website Designed & Programed by     Copyright 2023
Control Pal Logo

Follow on Facebook Follow Us on Twitter Follow Us on YouTube Channel