ML6174, ML7174 NON-SPRING RETURN DIRECT COUPLED ACTUATORS
63-2534—1
2
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1.
Your local Home and Building Control Sales Office (check white pages of your phone directory).
2.
Home and Building Control Customer Logistics
Honeywell Inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386 (612) 951-1000
In Canada—Honeywell Limited/Honeywell Limitée, 155 Gordon Baker Road, North York, Ontario M2H 3N7.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
SPECIFICATIONS
Models:
70 lb-in. torque with declutch, selectable 45
°
, 60
°
and 90
°
stroke in both cw or ccw directions.
ML6174A: 90 second, 3 minute and 7 minute timing, spdt
Floating Series 60. Includes auxiliary potentiometer
drive for use with field-addable feedback potentiometer,
minimum position adjustment setscrews for cw or ccw
operation, and 4074ENJ Bag Assembly.
ML6174B: 90 second, 7 minute timing, spdt Floating
Series 60. Available with minimum position adjustment
setscrews. Includes 4074ENJ or 4074ENY Bag
Assembly.
ML6174C: 90 second, 3 minute and 7 minute timing, spdt
Floating Series 60. Includes auxiliary potentiometer
drive for use with field-addable feedback potentiometer,
minimum position adjustment setscrews for cw or ccw
operation, 4074ENJ Bag Assembly, and integral conduit
cover.
ML6174D: 90 second, 7 minute timing, spdt Floating
Series 60. Available with minimum position adjustment
setscrews. Includes 4074ENJ or 4074ENY Bag
Assembly, as appropriate, and integral conduit cover.
ML7174A: 90 second timing, 2 to 10 Vdc or 4 to 20 mA
control input. Includes 4074ENJ Bag Assembly.
Electrical Ratings:
Input Voltage: 24 Vac
±
20%, 50/60 Hz.
Power Consumption (Maximum), at 24 Vac:
ML6174A,B: 2.3W, 0.1A, 2.4 VA.
ML7174A: 5.2W, 0.22A, 5.4 VA
Control Inputs:
100K ohm input impedance for voltage.
Outputs:
500 ohm and 2K ohm outputs for ML6174A,C.
Temperature Ratings:
Ambient: 20
°
to 125
°
F (-18
°
to 50
°
C).
Derated Timing to: -20
°
F (-29
°
C).
Shipping and Storage: -40
°
to 150
°
F (-40
°
to 66
°
C).
Humidity Ratings:
5% to 95% RH noncondensing.
Torque Ratings (ML6174 and ML7174):
Running: 70 lb-in. (8.0 N•m).
Breakaway: 70 lb-in. (8.0 N•m).
Stall:
70 lb-in. (8.0 N•m) minimum;
130 lb-in. (14.0 N•m) maximum.
Auxiliary Switch Ratings:
Electrical selective NO or NC, not simultaneous.
Pilot Duty:
50 VA, 24 Vac.
Switch Differential:
Three angular degrees maximum.
Dimensions:
See Fig. 1, 1A, and 1B.
Feedback Potentiometer Ratings (ML6174A,C):
Electrical Rating (200976A,C Potentiometer): 24 Vac,
50/60 Hz, 2.25W.
Resistance Output (Resistance Linear as Measured
Between Terminals R-B):
0 ohms (at 0
°
, cw stroke).
250 ohms (at 45
°
, cw stroke).
333 ohms (at 60
°
, cw stroke).
500 ohms (at 90
°
, cw stroke).
Actuator Timings (at 50 Hz Nominal):
90-second Models:
90
°
—108 sec.
60
°
—72 sec.
45
°
—54 sec.
Three-Minute Models:
90
°
—216 sec.
60
°
—144 sec.
45
°
—108 sec.
Seven-Minute Models:
90
°
—504 sec.
60
°
—336 sec.
45
°
—252 sec.
Actuator Timings (at 60 Hz Nominal):
90-second Models:
90
°
—90 sec.
60
°
—60 sec.
45
°
—45 sec.
